Using a BBC microbit with ESP8266
Posted: Sun Dec 18, 2022 12:11 pmNewbie to ESP8266 here! I'm working on an extension (library) for the microbit to send measurements to a Google Sheet web app.
The extension is in JavaScript, and I'm basing it on an existing extension (GitHub) that was written to send measurements to ThingSpeak.
The good news is that I can connect to my WiFi OK. But connecting to the web app is a problem.
One tricky bit (to me, anyway) is how to code the string for the AT+CIPSEND= command.
The original code has:
Because I don't have an api key I assumed I could change this to
But that's not working. Any ideas please?
I've also started getting errors following my
My serial log shows this message back from ESP8266:
17:03:56.220 AT+CIPSTART="TCP","https://script.google.com/macros/s/AKfycbyk6H_5Bgnadzi_y6UtySSAuv-h5Yh7rsylkCH_oV0/dev",80^M
17:03:56.230 IP ERROR
17:03:56.231
17:03:56.231 ERROR
I'd appreciate any tips on how to debug. I have a USB-TTL gadget (a PL2303 device). Should I try using it with a serial terminal rather than with code perhaps?
The extension is in JavaScript, and I'm basing it on an existing extension (GitHub) that was written to send measurements to ThingSpeak.
The good news is that I can connect to my WiFi OK. But connecting to the web app is a problem.
One tricky bit (to me, anyway) is how to code the string for the AT+CIPSEND= command.
The original code has:
Code: Select all
GET /update?api_key=" + write_api_key + "&field1=" + n1Because I don't have an api key I assumed I could change this to
Code: Select all
string = "GET /?field1=" + n1But that's not working. Any ideas please?
I've also started getting errors following my
Code: Select all
sendAT("AT+CIPSTART=\"TCP\",\"" + url + "\",80", 0)My serial log shows this message back from ESP8266:
17:03:56.220 AT+CIPSTART="TCP","https://script.google.com/macros/s/AKfycbyk6H_5Bgnadzi_y6UtySSAuv-h5Yh7rsylkCH_oV0/dev",80^M
17:03:56.230 IP ERROR
17:03:56.231
17:03:56.231 ERROR
I'd appreciate any tips on how to debug. I have a USB-TTL gadget (a PL2303 device). Should I try using it with a serial terminal rather than with code perhaps?