Problem with ESP23/ESP8266 in Standard TIC mode (Linky)
For PiTInfo
Hi,
I recently received a PiTinfo in rev 1.3 (it took about one week to arrive in economy mail).
It worked fine with both an ESP32 (Development board DevKitC) and an ESP8266 (Weemos D1 mini pro) in “Historical” TIC mode (1200 bauds) using hardwareSerial. I used LibTeleinfo and Wifinfo to start with: a very comprehensive and impressive piece of work...but probably too sophisticated for my purpose.
When I switched to Standard mode (9600 bauds), the “wheel came off” and I could no longer receive anything that looked like what was expected : the communication was obviously heavily impacted by what looked like parasites !
After long hours of investigation and tests in all directions, I finally managed to make it work (hurray !!)! by adding a 1k resistance between GND and pin 3 of the LTV814 (therefore in parallel with R1, as I had no means to solder it on without taking the risk of damaging the board).
Truly not very professional (understatement), but it seems to work (at least on ESP32, I haven’t checked on ESP8266).
@Charles, I let you comment on the appropriateness of my hardware patch.
Hope this helps someone save a lot of time in finding a solution !
Cheers.
