def __init__(self):
"""
Big init routine as the whole board is brought up.
"""
self.hardware = {
'IMU': False,
'Radio1': False,
'Radio2': False,
'SDcard': False,
'GPS': False,
'MRAM': False,
'WDT': False,
'USB': False,
'PWR': False,
}
# Define burn wires:
self._relayA = digitalio.DigitalInOut(board.RELAY_A)
self._relayA.switch_to_output()
self._deployA = False
# Define battery voltage
self._vbatt = analogio.AnalogIn(board.BATTERY)
# Define MPPT charge current measurement
self._ichrg = analogio.AnalogIn(board.L1PROG)
# Define SPI,I2C,UART
self.i2c = busio.I2C(board.SCL,board.SDA)
self.spi = busio.SPI(board.SCK,MOSI=board.MOSI,MISO=board.MISO)
#self.uart = busio.UART(board.TX,board.RX, baudrate=9600, timeout=10)
# Define GPS
self.en_gps = digitalio.DigitalInOut(board.EN_GPS)
self.en_gps.switch_to_output()
# Define sdcard
self._sdcs = digitalio.DigitalInOut(board.xSDCS)
self._sdcs.switch_to_output(value=True)
# Define radio
self._rf_cs1 = digitalio.DigitalInOut(board.RF1_CS)
self._rf_rst1 = digitalio.DigitalInOut(board.RF1_RST)
self._rf_cs1.switch_to_output(value=True)
self._rf_rst1.switch_to_output(value=True)
self._rf_cs2 = digitalio.DigitalInOut(board.RF2_CS)
self._rf_rst2 = digitalio.DigitalInOut(board.RF2_RST)
self._rf_cs2.switch_to_output(value=True)
self._rf_rst2.switch_to_output(value=True)
# Define MRAM (manual-mode)
# self._mram_cs = digitalio.DigitalInOut(microcontroller.pin.PB11)
# self._mram_cs.switch_to_output(value=True)
# Initialize Neopixel
try:
self.neopixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2, pixel_order=neopixel.GRB)
self.neopixel[0] = (0,0,0)
self.hardware['Neopixel'] = True
except Exception as e:
print('[WARNING][Neopixel]',e)
# Initialize USB charger
try:
self.usb = bq25883.BQ25883(self.i2c)
self.usb.charging = False
self.usb.wdt = False
self.usb.led=False
self.hardware['USB'] = True
except Exception as e:
print('[ERROR][USB Charger]',e)
# Initialize sdcard
try:
self._sd = adafruit_sdcard.SDCard(self.spi, self._sdcs)
self._vfs = storage.VfsFat(self._sd)
storage.mount(self._vfs, "/sd")
sys.path.append("/sd")
self.hardware['SDcard'] = True
except Exception as e:
print('[ERROR][SD Card]',e)
# Initialize Power Monitor
try:
self.pwr = adm1176.ADM1176(self.i2c)
self.pwr.sense_resistor = 1
self.hardware['PWR'] = True
except Exception as e:
print('[ERROR][Power Monitor]',e)
# Initialize IMU
try:
self.IMU = bmx160.BMX160_I2C(self.i2c)
self.hardware['IMU'] = True
except Exception as e:
print('[ERROR]',e)
# Initialize radio(s)
try:
self.radio1 = adafruit_rfm9x.RFM9x(self.spi, self._rf_cs1, self._rf_rst1, 433.0)
self.hardware['Radio1'] = True
except Exception as e:
print('[ERROR][RADIO 1]',e)
try:
self.radio2 = adafruit_rfm9x.RFM9x(self.spi, self._rf_cs2, self._rf_rst2, 433.0)
self.hardware['Radio2'] = True
except Exception as e:
print('[ERROR][RADIO 2]',e)
def __init__(self):
"""
Big init routine as the whole board is brought up.
"""
self.BOOTTIME = const(time.time())
self.data_cache = {}
self.filenumbers = {}
self.vlowbatt = 6.0
self.send_buff = memoryview(SEND_BUFF)
self.debug = True
self.micro = microcontroller
self.hardware = {
'IMU': False,
'Radio1': False,
'Radio2': False,
'SDcard': False,
'GPS': False,
'WDT': False,
'USB': False,
'PWR': False
}
# Define burn wires:
self._relayA = digitalio.DigitalInOut(board.RELAY_A)
self._relayA.switch_to_output(
drive_mode=digitalio.DriveMode.OPEN_DRAIN)
self._resetReg = digitalio.DigitalInOut(board.VBUS_RST)
self._resetReg.switch_to_output(
drive_mode=digitalio.DriveMode.OPEN_DRAIN)
# Define battery voltage
self._vbatt = AnalogIn(board.BATTERY)
# Define MPPT charge current measurement
self._ichrg = AnalogIn(board.L1PROG)
self._chrg = digitalio.DigitalInOut(board.CHRG)
self._chrg.switch_to_input()
# Define SPI,I2C,UART
self.i2c1 = busio.I2C(board.SCL, board.SDA)
self.spi = board.SPI()
self.uart = busio.UART(board.TX, board.RX)
# Define GPS
self.en_gps = digitalio.DigitalInOut(board.EN_GPS)
self.en_gps.switch_to_output()
# Define filesystem stuff
self.logfile = "/log.txt"
# Define radio
_rf_cs1 = digitalio.DigitalInOut(board.RF1_CS)
_rf_rst1 = digitalio.DigitalInOut(board.RF1_RST)
self.enable_rf = digitalio.DigitalInOut(board.EN_RF)
self.radio1_DIO0 = digitalio.DigitalInOut(board.RF1_IO0)
# self.enable_rf.switch_to_output(value=False) # if U21
self.enable_rf.switch_to_output(value=True) # if U7
_rf_cs1.switch_to_output(value=True)
_rf_rst1.switch_to_output(value=True)
self.radio1_DIO0.switch_to_input()
# Initialize SD card (always init SD before anything else on spi bus)
try:
# Baud rate depends on the card, 4MHz should be safe
_sd = sdcardio.SDCard(self.spi, board.SD_CS, baudrate=4000000)
_vfs = VfsFat(_sd)
mount(_vfs, "/sd")
self.fs = _vfs
sys.path.append("/sd")
self.hardware['SDcard'] = True
self.logfile = "/sd/log.txt"
except Exception as e:
if self.debug: print('[ERROR][SD Card]', e)
# Initialize Neopixel
try:
self.neopixel = neopixel.NeoPixel(board.NEOPIXEL,
1,
brightness=0.2,
pixel_order=neopixel.GRB)
self.neopixel[0] = (0, 0, 0)
self.hardware['Neopixel'] = True
except Exception as e:
if self.debug: print('[WARNING][Neopixel]', e)
# Initialize USB charger
try:
self.usb = bq25883.BQ25883(self.i2c1)
self.usb.charging = False
self.usb.wdt = False
self.usb.led = False
self.usb.charging_current = 8 #400mA
self.usb_charging = False
self.hardware['USB'] = True
except Exception as e:
if self.debug: print('[ERROR][USB Charger]', e)
# Initialize Power Monitor
try:
self.pwr = adm1176.ADM1176(self.i2c1)
self.pwr.sense_resistor = 1
self.hardware['PWR'] = True
except Exception as e:
if self.debug: print('[ERROR][Power Monitor]', e)
# Initialize IMU
try:
self.IMU = bmx160.BMX160_I2C(self.i2c1)
self.hardware['IMU'] = True
except Exception as e:
if self.debug: print('[ERROR][IMU]', e)
# # Initialize GPS
# try:
# self.gps = GPS(self.uart,debug=False) # still powered off!
# self.gps.timeout_handler=self.timeout_handler
# self.hardware['GPS'] = True
# except Exception as e:
# if self.debug: print('[ERROR][GPS]',e)
# Initialize radio #1 - UHF
try:
self.radio1 = pycubed_rfm9x.RFM9x(self.spi,
_rf_cs1,
_rf_rst1,
433.0,
code_rate=8,
baudrate=1320000)
# Default LoRa Modulation Settings
# Frequency: 433 MHz, SF7, BW125kHz, CR4/8, Preamble=8, CRC=True
self.radio1.dio0 = self.radio1_DIO0
self.radio1.enable_crc = True
self.radio1.ack_delay = 0.2
self.radio1.sleep()
self.hardware['Radio1'] = True
except Exception as e:
if self.debug: print('[ERROR][RADIO 1]', e)
# set PyCubed power mode
self.power_mode = 'normal'