mirror of
https://github.com/lumapu/ahoy.git
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PoC Hoymiles package full payload decode WIP
Transform ahoy.py into a python library, implements decoding of fragmented large payloads. The module also allows for easier tinkering and replay testing.
This commit is contained in:
Jan-Jonas Sämann
parent
0309dcb41a
commit
d7f9f6d3be
7 changed files with 573 additions and 4600 deletions
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@ -10,9 +10,11 @@ import struct
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import crcmod
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import json
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from datetime import datetime
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from RF24 import RF24, RF24_PA_LOW, RF24_PA_MAX, RF24_250KBPS
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from RF24 import RF24, RF24_PA_LOW, RF24_PA_MAX, RF24_250KBPS, RF24_CRC_DISABLED, RF24_CRC_8, RF24_CRC_16
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import paho.mqtt.client
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from configparser import ConfigParser
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#from hoymiles import ser_to_hm_addr, ser_to_esb_addr
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import hoymiles
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cfg = ConfigParser()
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cfg.read('ahoy.conf')
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@ -39,358 +41,9 @@ inv_ser = cfg.get('inverter', 'serial', fallback='444473104619') # my inverter
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f_crc_m = crcmod.predefined.mkPredefinedCrcFun('modbus')
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f_crc8 = crcmod.mkCrcFun(0x101, initCrc=0, xorOut=0)
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def ser_to_hm_addr(s):
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"""
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Calculate the 4 bytes that the HM devices use in their internal messages to
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address each other.
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"""
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bcd = int(str(s)[-8:], base=16)
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return struct.pack('>L', bcd)
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def ser_to_esb_addr(s):
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"""
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Convert a Hoymiles inverter/DTU serial number into its
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corresponding NRF24 'enhanced shockburst' address byte sequence (5 bytes).
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The NRF library expects these in LSB to MSB order, even though the transceiver
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itself will then output them in MSB-to-LSB order over the air.
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The inverters use a BCD representation of the last 8
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digits of their serial number, in reverse byte order,
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followed by \x01.
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"""
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air_order = ser_to_hm_addr(s)[::-1] + b'\x01'
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return air_order[::-1]
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def compose_0x80_msg(dst_ser_no=72220200, src_ser_no=72220200, ts=None, subtype=b'\x0b'):
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"""
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Create a valid 0x80 request with the given parameters, and containing the
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current system time.
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"""
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if not ts:
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ts = 0x623C8ECF # identical to fc22's for testing # doc: 1644758171
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# "framing"
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p = b''
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p = p + b'\x15'
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p = p + ser_to_hm_addr(dst_ser_no)
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p = p + ser_to_hm_addr(src_ser_no)
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p = p + b'\x80'
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# encapsulated payload
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pp = subtype + b'\x00'
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pp = pp + struct.pack('>L', ts) # big-endian: msb at low address
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#pp = pp + b'\x00' * 8 # of22 adds a \x05 at position 19
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pp = pp + b'\x00\x00\x00\x05\x00\x00\x00\x00'
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# CRC_M
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crc_m = f_crc_m(pp)
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p = p + pp
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p = p + struct.pack('>H', crc_m)
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crc8 = f_crc8(p)
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p = p + struct.pack('B', crc8)
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return p
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def print_addr(a):
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print(f"ser# {a} ", end='')
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print(f" -> HM {' '.join([f'{x:02x}' for x in ser_to_hm_addr(a)])}", end='')
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print(f" -> ESB {' '.join([f'{x:02x}' for x in ser_to_esb_addr(a)])}")
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# time of last transmission - to calculcate response time
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t_last_tx = 0
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def on_receive(p=None, ctr=None, ch_rx=None, ch_tx=None, time_rx=datetime.now(), latency=None):
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"""
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Callback: get's invoked whenever a Nordic ESB packet has been received.
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:param p: Payload of the received packet.
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"""
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d = {}
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t_now_ns = time.monotonic_ns()
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ts = datetime.utcnow()
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ts_unixtime = ts.timestamp()
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size = len(p)
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d['ts_unixtime'] = ts_unixtime
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d['isodate'] = ts.isoformat()
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d['rawdata'] = " ".join([f"{b:02x}" for b in p])
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d['trans_id'] = ctr
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dt = time_rx.strftime("%Y-%m-%d %H:%M:%S.%f")
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print(f"{dt} Received {size} bytes on channel {ch_rx} after tx {latency}ns: " +
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" ".join([f"{b:02x}" for b in p]))
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# check crc8
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crc8 = f_crc8(p[:-1])
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d['crc8_valid'] = True if crc8==p[-1] else False
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# interpret content
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mid = p[0]
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d['mid'] = mid
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name = 'unknowndata'
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d['response_time_ns'] = t_now_ns-t_last_tx
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d['ch_rx'] = ch_rx
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d['ch_tx'] = ch_tx
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if mid == 0x95:
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decode_hoymiles_hm600(d, p, time_rx=time_rx)
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else:
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print(f'unknown frame id {p[0]}')
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def decode_hoymiles_hm600(d, p, time_rx=datetime.now()):
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"""
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Decode payload from Hoymiles HM-600
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:param d: Pre parsed data from on_receive
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:param p: raw payload byte array
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:param time_rx: datetime object when packet was received
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"""
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src, dst, cmd = struct.unpack('>LLB', p[1:10])
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src_s = f'{src:08x}'
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dst_s = f'{dst:08x}'
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d['src'] = src_s
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d['dst'] = dst_s
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d['cmd'] = cmd
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dt = time_rx.strftime("%Y-%m-%d %H:%M:%S.%f")
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print(f'{dt} Decoder src={src_s}, dst={dst_s}, cmd={cmd}, ', end=' ')
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if cmd==1: # 0x01
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"""
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On HM600 Response to
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0x80 0x0b
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0x80 0x0c
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0x80 0x0d
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0x80 0x0f
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0x80 0x03 (garbled data)
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"""
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name = 'dcdata'
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uk1, u1, i1, p1, u2, i2, p2, uk2 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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print(f'u1={u1/10}V, i1={i1/100}A, p1={p1/10}W, ', end='')
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print(f'u2={u2/10}V, i2={i2/100}A, p2={p2/10}W, ', end='')
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print(f'uk1={uk1}, uk2={uk2}')
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d['dc'] = {0: {}, 1: {}}
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d['dc'][0]['voltage'] = u1/10
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d['dc'][0]['current'] = i1/100
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d['dc'][0]['power'] = p1/10
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d['dc'][1]['voltage'] = u2/10
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d['dc'][1]['current'] = i2/100
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d['dc'][1]['power'] = p2/10
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d['uk1'] = uk1
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d['uk2'] = uk2
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elif cmd==2: # 0x02
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"""
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On HM600 Response to
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0x80 0x0b
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0x80 0x0c
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0x80 0x0d
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0x80 0x0f
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0x80 0x03 (garbled data)
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"""
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name = 'acdata'
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uk1, uk2, uk3, uk4, uk5, ac_u1, f, ac_p1 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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print(f'ac_u1={ac_u1/10:.1f}V, ac_f={f/100:.2f}Hz, ac_p1={ac_p1/10:.1f}W, ', end='')
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}')
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d['ac'] = {0: {}}
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d['ac'][0]['voltage'] = ac_u1/10
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d['frequency'] = f/100
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d['ac'][0]['power'] = ac_p1/10
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d['wtot1_Wh'] = uk1
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d['wtot2_Wh'] = uk3
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d['wday1_Wh'] = uk4
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d['wday2_Wh'] = uk5
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d['uk2'] = uk2
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elif cmd==3: # 0x03
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"""
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On HM600 Response to
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0x80 0x03 (garbled data)
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"""
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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elif cmd==4: # 0x04
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"""
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On HM600 Response to
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0x80 0x03 (garbled data)
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"""
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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elif cmd==5: # 0x05
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"""
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On HM600 Response to
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0x80 0x03 (garbled data)
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"""
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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elif cmd==6: # 0x06
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"""
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On HM600 Response to
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0x80 0x03 (garbled data)
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"""
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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elif cmd==7: # 0x07
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"""
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On HM600 Response to
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0x80 0x03 (garbled data)
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"""
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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elif cmd==129 and len(p) == 17: # 0x81
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"""
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On HM600 Response to
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0x80 0x0a
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"""
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uk1, uk2, uk3 = struct.unpack(
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'>HHH', p[10:16])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ')
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elif cmd==129: # 0x81
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"""
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On HM600 Response to
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0x80 0x02
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0x80 0x11
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"""
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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name = 'error'
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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elif cmd==131: # 0x83
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"""
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On HM600 Response to
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0x80 0x0b
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0x80 0x0c
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0x80 0x0d
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0x80 0x0f
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"""
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name = 'statedata'
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uk1, ac_i1, uk3, t, uk5, uk6 = struct.unpack('>HHHHHH', p[10:22])
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print(f'ac_i1={ac_i1/100}A, t={t/10:.2f}C, ', end='')
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print(f'uk1={uk1}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}')
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d['ac'] = {0: {}}
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d['ac'][0]['current'] = ac_i1/100
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d['temperature'] = t/10
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d['uk1'] = uk1
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d['uk3'] = uk3
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d['uk5'] = uk5
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d['uk6'] = uk6
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elif cmd==132: # 0x84
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name = 'unknown0x84'
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uk1, uk2, uk3, uk4, uk5, uk6, uk7, uk8 = struct.unpack(
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'>HHHHHHHH', p[10:26])
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print(f'uk1={uk1}, ', end='')
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print(f'uk2={uk2}, ', end='')
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print(f'uk3={uk3}, ', end='')
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print(f'uk4={uk4}, ', end='')
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print(f'uk5={uk5}, ', end='')
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print(f'uk6={uk6}, ', end='')
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print(f'uk7={uk7}, ', end='')
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print(f'uk8={uk8}')
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else:
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print(f'unknown cmd {cmd}')
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# output to MQTT
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if d:
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j = json.dumps(d)
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mqtt_client.publish(f'ahoy/{src}/debug', j)
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if d['cmd']==2:
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mqtt_client.publish(f'ahoy/{src}/emeter/0/voltage', d['ac'][0]['voltage'])
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mqtt_client.publish(f'ahoy/{src}/emeter/0/power', d['ac'][0]['power'])
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mqtt_client.publish(f'ahoy/{src}/emeter/0/total', d['wtot1_Wh'])
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mqtt_client.publish(f'ahoy/{src}/frequency', d['frequency'])
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if d['cmd']==1:
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/power', d['dc'][0]['power'])
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/voltage', d['dc'][0]['voltage'])
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/current', d['dc'][0]['current'])
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/power', d['dc'][1]['power'])
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/voltage', d['dc'][1]['voltage'])
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mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/current', d['dc'][1]['current'])
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if d['cmd']==131:
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mqtt_client.publish(f'ahoy/{src}/temperature', d['temperature'])
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mqtt_client.publish(f'ahoy/{src}/emeter/0/current', d['ac'][0]['current'])
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def main_loop():
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"""
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Keep receiving on channel 3. Every once in a while, transmit a request
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@ -399,15 +52,13 @@ def main_loop():
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global t_last_tx
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print_addr(inv_ser)
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print_addr(dtu_ser)
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hoymiles.print_addr(inv_ser)
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hoymiles.print_addr(dtu_ser)
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ctr = 1
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last_tx_message = ''
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ts = int(time.time()) # see what happens if we always send one and the same (constant) time!
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rx_channels = [3,23,61,75]
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rx_channels = [3,6,9,11,23,40,61,75]
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rx_channel_id = 0
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rx_channel = rx_channels[rx_channel_id]
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rx_channel_ack = None
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@ -418,20 +69,16 @@ def main_loop():
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tx_channel = tx_channels[tx_channel_id]
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radio.setChannel(rx_channel)
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radio.enableDynamicPayloads()
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radio.setAutoAck(True)
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radio.setRetries(15, 2)
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radio.setRetries(10, 2)
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radio.setPALevel(RF24_PA_LOW)
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#radio.setPALevel(RF24_PA_MAX)
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radio.setDataRate(RF24_250KBPS)
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radio.openReadingPipe(1,ser_to_esb_addr(dtu_ser))
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radio.openWritingPipe(ser_to_esb_addr(inv_ser))
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radio.openReadingPipe(1,hoymiles.ser_to_esb_addr(dtu_ser))
|
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radio.openWritingPipe(hoymiles.ser_to_esb_addr(inv_ser))
|
||||
|
||||
while True:
|
||||
radio.flush_rx()
|
||||
radio.flush_tx()
|
||||
m_buf = []
|
||||
# Sweep receive start channel
|
||||
# Channel selection: Sweep receive start channel
|
||||
if not rx_channel_ack:
|
||||
rx_channel_id = ctr % len(rx_channels)
|
||||
rx_channel = rx_channels[rx_channel_id]
|
||||
|
|
@ -441,43 +88,59 @@ def main_loop():
|
|||
tx_channel_id = 0
|
||||
tx_channel = tx_channels[tx_channel_id]
|
||||
|
||||
# Transmit
|
||||
ts = int(time.time())
|
||||
payload = compose_0x80_msg(src_ser_no=dtu_ser, dst_ser_no=inv_ser, ts=ts, subtype=b'\x0b')
|
||||
dt = datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")
|
||||
# Transmit: Compose data
|
||||
com = hoymiles.InverterTransaction(
|
||||
request_time = datetime.now(),
|
||||
inverter_ser=inv_ser,
|
||||
request = hoymiles.compose_0x80_msg(src_ser_no=dtu_ser, dst_ser_no=inv_ser, subtype=b'\x0b')
|
||||
)
|
||||
print(com)
|
||||
|
||||
# Transmit: Setup radio
|
||||
radio.stopListening() # put radio in TX mode
|
||||
radio.setChannel(tx_channel)
|
||||
t_tx_start = time.monotonic_ns()
|
||||
tx_status = radio.write(payload) # will always yield 'True' because auto-ack is disabled
|
||||
t_last_tx = t_tx_end = time.monotonic_ns()
|
||||
radio.setChannel(rx_channel)
|
||||
radio.startListening()
|
||||
radio.setAutoAck(True)
|
||||
radio.setRetries(3, 15)
|
||||
radio.setCRCLength(RF24_CRC_16)
|
||||
radio.enableDynamicPayloads()
|
||||
|
||||
# Transmit: Send payload
|
||||
t_tx_start = time.monotonic_ns()
|
||||
tx_status = radio.write(com.request)
|
||||
t_last_tx = t_tx_end = time.monotonic_ns()
|
||||
|
||||
last_tx_message = f"{dt} Transmit {ctr:5d}: channel={tx_channel} len={len(payload)} ack={tx_status} | " + \
|
||||
" ".join([f"{b:02x}" for b in payload]) + "\n"
|
||||
ctr = ctr + 1
|
||||
|
||||
# Receive loop
|
||||
# Receive: Setup radio
|
||||
radio.setChannel(rx_channel)
|
||||
radio.setAutoAck(False)
|
||||
radio.setRetries(0, 0)
|
||||
radio.enableDynamicPayloads()
|
||||
radio.setCRCLength(RF24_CRC_16)
|
||||
radio.startListening()
|
||||
|
||||
# Receive: Loop
|
||||
t_end = time.monotonic_ns()+1e9
|
||||
while time.monotonic_ns() < t_end:
|
||||
|
||||
has_payload, pipe_number = radio.available_pipe()
|
||||
if has_payload:
|
||||
# Data in nRF24 buffer, read it
|
||||
rx_error = 0
|
||||
rx_channel_ack = rx_channel
|
||||
t_end = time.monotonic_ns()+6e7
|
||||
t_end = time.monotonic_ns()+2e8
|
||||
|
||||
size = radio.getDynamicPayloadSize()
|
||||
payload = radio.read(size)
|
||||
m_buf.append( {
|
||||
'p': payload,
|
||||
'ch_rx': rx_channel, 'ch_tx': tx_channel,
|
||||
'time_rx': datetime.now(), 'latency': time.monotonic_ns()-t_last_tx} )
|
||||
|
||||
# Only print last transmittet message if we got any response
|
||||
print(last_tx_message, end='')
|
||||
last_tx_message = ''
|
||||
fragment = hoymiles.InverterPacketFragment(
|
||||
payload=payload,
|
||||
ch_rx=rx_channel, ch_tx=tx_channel,
|
||||
time_rx=datetime.now(),
|
||||
latency=time.monotonic_ns()-t_last_tx
|
||||
)
|
||||
print(fragment)
|
||||
com.frame_append(fragment)
|
||||
|
||||
else:
|
||||
# No data in nRF rx buffer, search and wait
|
||||
# Channel lock in (not currently used)
|
||||
|
|
@ -495,16 +158,68 @@ def main_loop():
|
|||
radio.startListening()
|
||||
time.sleep(0.005)
|
||||
|
||||
# Process receive buffer outside time critical receive loop
|
||||
for param in m_buf:
|
||||
on_receive(**param)
|
||||
inv_ser_hm = hoymiles.ser_to_hm_addr(inv_ser)
|
||||
try:
|
||||
payload = com.get_payload()
|
||||
except BufferError:
|
||||
payload = None
|
||||
#print("Garbage")
|
||||
|
||||
iv = None
|
||||
if payload:
|
||||
plen = len(payload)
|
||||
dt = com.time_rx.strftime("%Y-%m-%d %H:%M:%S.%f")
|
||||
iv = hoymiles.hm600_0b_response_decode(payload)
|
||||
|
||||
print(f'{dt} Decoded: {plen}', end='')
|
||||
print(f' string1=', end='')
|
||||
print(f' {iv.dc_voltage_0}VDC', end='')
|
||||
print(f' {iv.dc_current_0}A', end='')
|
||||
print(f' {iv.dc_power_0}W', end='')
|
||||
print(f' {iv.dc_energy_total_0}Wh', end='')
|
||||
print(f' {iv.dc_energy_daily_0}Wh/day', end='')
|
||||
print(f' string2=', end='')
|
||||
print(f' {iv.dc_voltage_1}VDC', end='')
|
||||
print(f' {iv.dc_current_1}A', end='')
|
||||
print(f' {iv.dc_power_1}W', end='')
|
||||
print(f' {iv.dc_energy_total_1}Wh', end='')
|
||||
print(f' {iv.dc_energy_daily_1}Wh/day', end='')
|
||||
print(f' phase1=', end='')
|
||||
print(f' {iv.ac_voltage_0}VAC', end='')
|
||||
print(f' {iv.ac_current_0}A', end='')
|
||||
print(f' {iv.ac_power_0}W', end='')
|
||||
print(f' inverter={com.inverter_ser}', end='')
|
||||
print(f' {iv.ac_frequency}Hz', end='')
|
||||
print(f' {iv.temperature}°C', end='')
|
||||
print()
|
||||
|
||||
|
||||
# output to MQTT
|
||||
if iv:
|
||||
src = com.inverter_ser
|
||||
# AC Data
|
||||
mqtt_client.publish(f'ahoy/{src}/frequency', iv.ac_frequency)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter/0/power', iv.ac_power_0)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter/0/voltage', iv.ac_voltage_0)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter/0/current', iv.ac_current_0)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter/0/total', iv.dc_energy_total_0)
|
||||
# DC Data
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/total', iv.dc_energy_total_0/1000)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/power', iv.dc_power_0)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/voltage', iv.dc_voltage_0)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/0/current', iv.dc_current_0)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/total', iv.dc_energy_total_1/1000)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/power', iv.dc_power_1)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/voltage', iv.dc_voltage_1)
|
||||
mqtt_client.publish(f'ahoy/{src}/emeter-dc/1/current', iv.dc_current_1)
|
||||
# Global
|
||||
mqtt_client.publish(f'ahoy/{src}/temperature', iv.temperature)
|
||||
|
||||
time.sleep(5)
|
||||
|
||||
# Flush console
|
||||
print(flush=True, end='')
|
||||
|
||||
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
||||
if not radio.begin():
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue