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Add UART Pinout node, change node to 7 & 8, change uart to return upon new line char #22

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Add UART Pinout node, change node to 7 & 8, change uart to return upon new line char #22

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58f393e
Add UART Pinout node, change node to 7 & 8, change uart to return upo…
SP1RYTUSzz May 8, 2025
0918bef
change coding rate, node & destination
SP1RYTUSzz May 8, 2025
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21 changes: 6 additions & 15 deletions CubeSatLink 2.0/GroundStation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,35 +10,26 @@
import sdcardio
import storage

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

# FIELD CONFIG PARAMETERS
RADIO_FREQ_MHZ = 902.0

# Declare SPI pins
RESET = digitalio.DigitalInOut(board.D11)
CS_RFM = digitalio.DigitalInOut(board.D10)
CS_SD = board.D4
# Declare on-board LED status blink
led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT


# Initialize SPI bus
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
# Initialize SD Card Module

# Initialize RFM95
rfm9x = adafruit_rfm9x.RFM9x(spi, CS_RFM, RESET, RADIO_FREQ_MHZ, agc = True)


# Radio config
rfm9x.tx_power = 23
rfm9x.coding_rate = 8
rfm9x.coding_rate = 6
#rfm9x.signal_bandwidth = 7800
rfm9x.spreading_factor = 8 #higher = lower bitrate
rfm9x.enable_crc = True # enable CRC checking
rfm9x.ack_delay = 0.1 # set delay before transmitting ACK (seconds)
rfm9x.node = 2 # set node addresses
rfm9x.destination = 1 # set destination addresses
rfm9x.node = 7 # set node addresses
rfm9x.destination = 8 # set destination addresses

tnow = 0
TxInterval = 5
Expand Down
41 changes: 20 additions & 21 deletions CubeSatLink 2.0/Summit.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
# CubeSatLink Flight Transceiver Node (Summit)
# Connect to antenna before plug any power in
# NOTE: UART Pinout. It is flipped by adafruit design, we can't change it to be logical.
# Author: Tri Do

import time
Expand All @@ -13,34 +14,27 @@
uart1 = busio.UART(board.D24, board.D25, baudrate=9600, bits = 8, parity = None, timeout=1)
message_started = False

# set the time interval (seconds) for sending packets
uartTxInterval = 1
transmit_interval = 5
RFMTimeOut = 10
# Define radio parameters.
RADIO_FREQ_MHZ = 902.0

# Define pins connected to the chip.
# set GPIO pins as necessary -- this example is for Raspberry Pi
CS = digitalio.DigitalInOut(board.D10)
RESET = digitalio.DigitalInOut(board.D11)

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

# Initialize SPI bus.
RADIO_FREQ_MHZ = 902.0
CS = digitalio.DigitalInOut(board.D10)
RESET = digitalio.DigitalInOut(board.D11)
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
# Initialze RFM radio
rfm9x = adafruit_rfm9x.RFM9x(spi, CS, RESET, RADIO_FREQ_MHZ, agc = True)

# rfm9x post-config
rfm9x.enable_crc = True
rfm9x.tx_power = 23
rfm9x.spreading_factor = 8
rfm9x.coding_rate = 8
#rfm9x.signal_bandwidth = 7800
rfm9x.ack_delay = 0.1 # set delay before sending ACK
rfm9x.node = 1
rfm9x.destination = 2
rfm9x.node = 8
rfm9x.destination = 7

# initialize flag and timer
time_now = 0
Expand Down Expand Up @@ -70,7 +64,10 @@ def UART_Rx(uart):
rx_string = bytearray()
while uart.in_waiting > 0:
char_buffer = uart.read(1)
rx_string = rx_string + char_buffer
if (char_buffer == '\n'):
break
else:
rx_string = rx_string + char_buffer
string = ''.join([chr(b) for b in rx_string])
return string
#.decode('utf-8','replace') != '': #not empty
Expand All @@ -80,13 +77,16 @@ def UART_Rx(uart):
def incCnt():
global cnt
cnt += 1
def dspCnt():
def readCnt():
global cnt
return cnt
NoAck_cnt = 0
def incNAK():
global NoAck_cnt
NoAck_cnt += 1
def readNAK():
global NoAck_cnt
return NoAck_cnt

def petRFMWatchdog():
global rfmWatchdog
Expand All @@ -100,7 +100,7 @@ def RFM_Tx(cust,msg):
bytes(full_msg, "UTF-8")
):
incNAK()
print("Tx No Ack: ")
print(f"Tx No Ack: {readCnt()} {readNAK()}")

def RFM_Rx():
# Look for packet. Print header, payload, RSSI, SNR
Expand All @@ -111,11 +111,10 @@ def RFM_Rx():
print("RSSI: {0}, SNR: {1}".format(rfm9x.last_rssi, rfm9x.last_snr))
return packet[4:]

uartTxInterval = 3
uart0_receiving = ''
uart1_receiving = ''
while True:
# try:
try:
Blink_Status_LED()

# RFM Tx
Expand Down Expand Up @@ -150,7 +149,7 @@ def RFM_Rx():

# #RFM Rx
# uplink_message = RFM_Rx()
uplink_message = "Summit checking in. Behind Great Ideas. Phytecsssss.\n"
uplink_message = "Summit checking in. Behind Great Ideas. Phytecssssssadhfkjdshasdh whatever lorem ipsum.\n"
# print("RFM Recieved:",uplink_message)

# UART Tx
Expand All @@ -164,5 +163,5 @@ def RFM_Rx():
# print("-----END LOOP-----")
time.sleep(0.1)

# except Exception as e:
# print(e)
except Exception as e:
print(e)