mike-rankin / esp32_coincell_color_tft Goto Github PK

Mike,

As usual fantastic design. I wanted to edit your project for my custom needs.

Would you please be kind to publish PCB (board) file in either Eagle format or EasyEDA format ?

Thanks.

Hi this is a great project, thanks for sharing. I have a few questions about the h/w design:

1. Why did you change the USB-Serial chip to CP2104, as it is not recommended for new designs?
   

On the CP2102, the REGIN (pin 7) and VDD (pin 6) can also be connected to disable the onboard regulator. It still looks like you've been able to reduce the number of passives with the CP2104, e.g. no reset pullup.

2. Surprised how few high freq bypass caps (e.g. 100nF) you have (none!) for the ESP32? Did you determine they aren't needed through trial and error? You just have the single large 100uF cap.

3. Wondering how you can replace the inductor in the antenna matching circuit with a cap?

Thanks in advance!