Hopefull someone can help me with this. I have 5 pixel LEDs (WS2812B-B) on a custom PBC with the ESP32 WROOM 32D and want to use a PNP Switch to completely cut off the pixels when in deep sleep. Schematic and PCB layout below. Currently my tester code looks like this: void setup() { pinMode(32, OUTP...

good catch. Thanks a lot!

Thanks, that's helped a lot I think. After doing some research (and watching some Andreas Spiess videos) I've gone with the TPS3839K33DBZR (2.94V dropout) and reworked the layout do things are a little more clear. While I'm doing a hardware review I've also added in an i2c fuel gauge for good measur...

Makes sense to move the switch to EN on the LDO. I'm a little unsure what you mean about a voltage supervisor on the WROOM EN pin though. Currently, I have a 100nF cap and 10K res before the reset button as per the design documentation but do I need something else in there too?

I've been developing an IoT sensor around an ESP32 WROOM-32D and with the latest PCB design I've started to get a brownout detection sometimes when the WiFi is started up. I've got a link to the full OSH project in my git repo bellow but I'll include some pictures below for reference. https://github...

Greetings! Over the last couple of years, I've been developing a project for using machine learning to recommend house plants based on environmental data. This project has many parts, but one of the main components was developing a standardized sensor for collecting and sending data to our servers. ...