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lumapu committed May 23, 2022
2 parents 6a1a3b8 + e543787 commit f41e76d
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Showing 3 changed files with 36 additions and 15 deletions.
2 changes: 2 additions & 0 deletions tools/rpi/ahoy.yml.example
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ ahoy:
nrf:
- ce_pin: 22
cs_pin: 0
txpower: 'low' # default txpower (low,max)

mqtt:
disabled: false
Expand All @@ -31,6 +32,7 @@ ahoy:
inverters:
- name: 'balkon'
serial: 114172220003
txpower: 'low' # txpower per inverter (low,max)
mqtt:
send_raw_enabled: false # allow inject debug data via mqtt
topic: 'hoymiles/114172221234' # defaults to 'hoymiles/{serial}'
37 changes: 32 additions & 5 deletions tools/rpi/hoymiles/__init__.py
Original file line number Diff line number Diff line change
Expand Up @@ -274,16 +274,27 @@ class HoymilesNRF:
rx_channel_list = [3,23,40,61,75]
rx_channel_ack = False
rx_error = 0
txpower = 'max'

def __init__(self, device):
def __init__(self, **radio_config):
"""
Claim radio device
:param NRF24 device: instance of NRF24
"""
self.radio = device
radio = RF24(
radio_config.get('ce_pin', 22),
radio_config.get('cs_pin', 0),
radio_config.get('spispeed', 1000000))

def transmit(self, packet):
if not radio.begin():
raise RuntimeError('Can\'t open radio')

self.txpower = radio_config.get('txpower', 'max')

self.radio = radio

def transmit(self, packet, txpower=None):
"""
Transmit Packet
Expand All @@ -292,12 +303,14 @@ def transmit(self, packet):
:rtype: bool
"""

if not txpower:
txpower = self.txpower

inv_esb_addr = b'\01' + packet[1:5]
dtu_esb_addr = b'\01' + packet[5:9]

self.radio.stopListening() # put radio in TX mode
self.radio.setDataRate(RF24_250KBPS)
#self.radio.setPALevel(RF24_PA_LOW)
self.radio.openReadingPipe(1,dtu_esb_addr)
self.radio.openWritingPipe(inv_esb_addr)
self.radio.setChannel(self.tx_channel)
Expand All @@ -306,6 +319,11 @@ def transmit(self, packet):
self.radio.setCRCLength(RF24_CRC_16)
self.radio.enableDynamicPayloads()

if txpower == 'low':
self.radio.setPALevel(RF24_PA_LOW)
else:
self.radio.setPALevel(RF24_PA_MAX)

return self.radio.write(packet)

def receive(self, timeout=None):
Expand Down Expand Up @@ -402,6 +420,9 @@ def rx_channel(self):
"""
return self.rx_channel_list[self.rx_channel_id]

def __del__(self):
self.radio.powerDown()

def frame_payload(payload):
"""
Prepare payload for transmission, append Modbus CRC16
Expand Down Expand Up @@ -490,6 +511,7 @@ class InverterTransaction:
time_rx = None

radio = None
txpower = None

def __init__(self,
request_time=None,
Expand All @@ -513,6 +535,9 @@ def __init__(self,
if radio:
self.radio = radio

if 'txpower' in params:
self.txpower = params['txpower']

if not request_time:
request_time=datetime.now()

Expand Down Expand Up @@ -555,7 +580,7 @@ def rxtx(self):
c_datetime = datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")
print(f'{c_datetime} Transmit {len(packet)} | {hexify_payload(packet)}')

self.radio.transmit(packet)
self.radio.transmit(packet, txpower=self.txpower)

wait = False
try:
Expand Down Expand Up @@ -619,6 +644,8 @@ def get_payload(self, src=None):
self.time_rx = end_frame.time_rx
tr_len = end_frame.seq - 0x80
except StopIteration:
seq_last = max(frames, key=lambda frame:frame.seq).seq
self.__retransmit_frame(seq_last + 1)
raise BufferError(f'Missing packet: Last packet {len(self.scratch)}')

# Rebuild payload from unordered frames
Expand Down
12 changes: 2 additions & 10 deletions tools/rpi/hoymiles/__main__.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
import yaml
from yaml.loader import SafeLoader
import paho.mqtt.client
from RF24 import RF24, RF24_PA_LOW, RF24_PA_MAX, RF24_250KBPS, RF24_CRC_DISABLED, RF24_CRC_8, RF24_CRC_16
import hoymiles

def main_loop():
Expand Down Expand Up @@ -52,6 +51,7 @@ def poll_inverter(inverter, retries=4):
payload_ttl = payload_ttl - 1
com = hoymiles.InverterTransaction(
radio=hmradio,
txpower=inverter.get('txpower', None),
dtu_ser=dtu_ser,
inverter_ser=inverter_ser,
request=next(hoymiles.compose_esb_packet(
Expand Down Expand Up @@ -207,11 +207,7 @@ def mqtt_on_command(client, userdata, message):
# Prepare for multiple transceivers, makes them configurable (currently
# only one supported)
for radio_config in ahoy_config.get('nrf', [{}]):
radio = RF24(
radio_config.get('ce_pin', 22),
radio_config.get('cs_pin', 0),
radio_config.get('spispeed', 1000000))
hmradio = hoymiles.HoymilesNRF(device=radio)
hmradio = hoymiles.HoymilesNRF(**radio_config)

mqtt_client = None

Expand Down Expand Up @@ -242,9 +238,6 @@ def mqtt_on_command(client, userdata, message):
bucket=influx_config.get('bucket', None),
measurement=influx_config.get('measurement', 'hoymiles'))

if not radio.begin():
raise RuntimeError('Can\'t open radio')

g_inverters = [g_inverter.get('serial') for g_inverter in ahoy_config.get('inverters', [])]
for g_inverter in ahoy_config.get('inverters', []):
g_inverter_ser = g_inverter.get('serial')
Expand Down Expand Up @@ -274,5 +267,4 @@ def mqtt_on_command(client, userdata, message):
time.sleep(time.time() % loop_interval)

except KeyboardInterrupt:
radio.powerDown()
sys.exit()

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