Search found 6 matches

by licht77
Mon Jul 16, 2018 8:17 am
Forum: General Discussion
Topic: i2c driving me nuts - unexpected adresses?!? please advice!
Replies: 7
Views: 7969

Re: i2c driving me nuts - unexpected adresses?!? please advice!

@fly135: Yes - normally it works fine!
But there are several known flaws (eg i2c Write Issue #834) in the i2c implementation within esp32... and one of them is really nagging me :)
by licht77
Sun Jul 15, 2018 7:39 am
Forum: General Discussion
Topic: i2c driving me nuts - unexpected adresses?!? please advice!
Replies: 7
Views: 7969

Re: i2c driving me nuts - unexpected adresses?!? please advice!

Aaargh cant believe how obviosly :)

Thanks Kolban - that makes it clear to me of course! Now I can go on and have a look why i2c seems to freeze the whole esp32 chip every now and then...
by licht77
Sat Jul 14, 2018 9:37 am
Forum: General Discussion
Topic: i2c driving me nuts - unexpected adresses?!? please advice!
Replies: 7
Views: 7969

i2c driving me nuts - unexpected adresses?!? please advice!

Hi folks! I am playing around with a project and i2c is just driving me nuts. I get occasional freezes of the whole ESP32 what is a show stopper. As a rookie I want to learn and try to understand what is going wrong - so I bought a cheap scope and logic analyzer. For pinning down the problems I star...
by licht77
Mon Apr 09, 2018 5:42 am
Forum: ESP32 Arduino
Topic: Boot Loop - forbidden PIN? Watchdog?
Replies: 1
Views: 3530

Re: Boot Loop - forbidden PIN? Watchdog?

After reading more literature, I got an idea: Maybe its all that timecritic bitbanging stuff going on for the HX711 scales... - while it looks for me as its "non blocking" code it seems to trigger that watchdog...
by licht77
Sun Apr 08, 2018 8:34 am
Forum: ESP32 Arduino
Topic: Boot Loop - forbidden PIN? Watchdog?
Replies: 1
Views: 3530

Boot Loop - forbidden PIN? Watchdog?

Hi folks! I am a little desperate with my project - maybe one of you has a good pointer for me? Hardware setup: I am using a ESP32 Devkit V1 - connected GPIOs: i2c SCL 22 i2c Data 21 ACS712 sensor 39 HX711 Scale 3 SCK 35 HX711 Scale 3 DT 32 HX711 Scale 2 SCK 33 HX711 Scale 2 DT 25 HX711 Scale 1 SCK ...