Hi all. I'm working on a weather station IOT project.
I'm using a Pico SIM7080G Cat-M/NB-IoT. on a Pico, and interacting with the project via Thonny.
I have a very basic script which currently connects too, and downloads information from an API.
However, a code module (supplied by the board maker) that sends ands receives 'AT' commands via UART has completely sparodic chances of getting unicode errors. I would say it has a 1 in 20 chance of making it all the way through the script, but it does happen.
Here is the code block for sending the AT command:
And here is an example of a command
The current script has probably 30 AT commands, and the following error can happen at any of them, seemingly completely at random, although usually during sending the first command
I apologize if it seems like I need a bit of handholding, I kinda do! This is by far and away the most electronics project I have ever undertaken, and it really seems like the data for this module is lacking.
Thanks!
I'm using a Pico SIM7080G Cat-M/NB-IoT. on a Pico, and interacting with the project via Thonny.
I have a very basic script which currently connects too, and downloads information from an API.
However, a code module (supplied by the board maker) that sends ands receives 'AT' commands via UART has completely sparodic chances of getting unicode errors. I would say it has a 1 in 20 chance of making it all the way through the script, but it does happen.
Here is the code block for sending the AT command:
Code:
def send_at(cmd, back, timeout=1500): rec_buff = b'' Pico_SIM7080G.read() Pico_SIM7080G.write((cmd + '\r' + '\n').encode()) prvmills = utime.ticks_ms() while (utime.ticks_ms() - prvmills) < timeout: if Pico_SIM7080G.any(): rec_buff = b"".join([rec_buff, Pico_SIM7080G.read()]) #print('Initial rec buff', rec_buff) if rec_buff != '': Pico_SIM7080G.any() if back not in rec_buff.decode(): if 'ERROR' in rec_buff.decode(): print(cmd + ' back:\t' + rec_buff.decode()) return 0 else: # Resend cmd rec_buff = b'' rec_buff = send_at_wait_resp(cmd, back, timeout) if back not in rec_buff.decode(): print(cmd + ' back:\t' + rec_buff.decode()) return 0 else: return 1 else: print(rec_buff.decode()) return 1 else: print(cmd + ' no responce\n') # Resend cmd rec_buff = send_at_wait_resp(cmd, back, timeout) if back not in rec_buff.decode(): print(cmd + ' back:\t' + rec_buff.decode()) return 0 else: return 1Code:
send_at("AT", "OK")Code:
File "<stdin>", line 44, in send_atUnicodeError: Thanks!
Statistics: Posted by Bfreak — Fri Mar 22, 2024 11:23 pm