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fixed drop byte

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This commit is contained in:
brentru 2019-07-05 10:05:38 -04:00
parent 0ec11a77e3
commit a18e9b2021
2 changed files with 11 additions and 7 deletions
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7
lorawan_sensing_network/lora_device.py
View file

@ -47,7 +47,7 @@ rfm9x = adafruit_rfm9x.RFM9x(spi, CS, RESET, RADIO_FREQ_MHZ)
rfm9x.tx_power = 23
# sensor data
bme280_data = bytearray(7)
bme280_data = bytearray(8)
while True:
# Get sensor readings
@ -71,8 +71,9 @@ while True:
bme280_data[4] = humid_val & 0xff
# Pressure data
bme280_data[5] = (pres_val >> 8) & 0xff
bme280_data[6] = pres_val & 0xff
bme280_data[5] = (pres_val >> 16) & 0xff
bme280_data[6] = (pres_val >> 8) & 0xff
bme280_data[7] = pres_val & 0xff
# Convert bytearray to bytes
bme280_data_bytes = bytes(bme280_data)

11
lorawan_sensing_network/lora_gateway.py
View file

@ -77,10 +77,13 @@ temperature_feed_2 = aio.feeds('feather-2-temp')
humidity_feed_2 = aio.feeds('feather-2-humid')
pressure_feed_2 = aio.feeds('feather-2-pressure')
def pkt_int_to_float(pkt_val_1, pkt_val_2):
"""Converts 2 bytes of packet data to float.
def pkt_int_to_float(pkt_val_1, pkt_val_2, pkt_val_3=None):
"""Convert packet data to float.
"""
float_val = pkt_val_1 << 8 | pkt_val_2
if pkt_val_3 is None:
float_val = pkt_val_1 << 8 | pkt_val_2
else:
float_val = pkt_val_1 << 16 | pkt_val_2 << 8 | pkt_val_3
return float_val/100
while True:
@ -100,7 +103,7 @@ while True:
# Decode packet
temp_val = pkt_int_to_float(packet[1], packet[2])
humid_val = pkt_int_to_float(packet[3], packet[4])
pres_val = pkt_int_to_float(packet[5], packet[6])
pres_val = pkt_int_to_float(packet[5], packet[6], packet[7])
# Display packet information
print('Device ID: LoRa Feather #', packet[0])