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srg74 / WLED-wemos-shield

Wemos D1 Mini (ESP8266) or Wemos ESP32 D1 Mini (ESP32) based universal shield for WLED firmware
https://github.com/srg74/WLED-wemos-shield
MIT License
501 stars 69 forks source link

PCB v2.0 setup issue #39

Closed ChristophA closed 3 years ago

ChristophA commented 3 years ago

Hi, thank you very much for this cool project! I recently ordered come PSBs v2.0 and the required parts. While assembling a minimum setup I struggled to find the correct place for the fuse F2. There's no lable on the PCB for F2. But after a while i figured out to place in on the right hand side of D2. Maybe it's worth to add a lable for F2 on the PCB!?

A Wemos D1 Mini (also tested with D1 Mini pro) is now starting and accessible viw the webinterface. I confiugre the relay to use pin / GPIO 12, works as expected. LED out (DI) is configured to use pin / GPIO 2. But I cannot light any LED. Not sure if my setup is correct. I've also added R1 and R2, but still no light. Firmware is the latest v0.12.0-b3

Is there anything missing?

Many thanks for any hint!

PS: Still waiting for the fuse holder, therefore I'vs added a short cable just for testing.

PCB v2 0

srg74 commented 3 years ago

First of all your IC is different from which project is using. 74HCT126 is a buffer not a shifter. I don't think it will work.

ChristophA commented 3 years ago

I've double checked everything 10 times. Everyting but this chip... Thank you very much, I'll replace it wit a 74AHCT125. For some reasons 3 of these 126ers are in the box with the 125ers. Don't no were thes come from.

I'll report back once replaced.

ChristophA commented 3 years ago

All good now! Thanks again for pointing me in the right direction!