Search found 3 matches

by desyner
Sun Nov 22, 2020 5:29 am
Forum: Hardware
Topic: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library
Replies: 6
Views: 6571

Re: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library

Thanks for all the suggestions. I found adding a 100uF electrolytic capacitor allows the system to work. I have some 600mA LDO's on order, which I am hopeful will allow me to remove the cap.
by desyner
Mon Sep 28, 2020 5:33 pm
Forum: Hardware
Topic: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library
Replies: 6
Views: 6571

Re: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library

IC1 is an HT7833 low drop-out regulator. The datasheet guarantees an output of 500mA: https://www.holtek.com.tw/documents/101 ... 99f2d0f6d7
by desyner
Mon Sep 28, 2020 2:37 am
Forum: Hardware
Topic: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library
Replies: 6
Views: 6571

Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library

I've built a custom PCB designed to use the ESP32 WROOM. During the assembly and validation of the board I've been using example arduino programs to make sure the esp32 is running correctly. Currently, I'm having a problem with running wifi examples on my board. When I flash the WiFiScan example, I ...