FireBeetle 2 Vcc doesn't output 5v

userHead Eugenes 2024-03-31 09:35:17 111 Views1 Replies

Hi,

 

I've probably missed something really simple here, but I'm trying to hook up an SPI sensor board that needs a 3.3V input and a 5V input.

 

In the documentation here: https://wiki.dfrobot.com/FireBeetle_Board_ESP32_E_SKU_DFR0654

 

It states:

When powered by 5V-USB, VCC outputs about 4.7V and 3V3 outputs 3.3V

 

So when I have the Firebeetle 2 plugged just into the USB-C connector (nothing else connected) and running the blink program, I test the voltage levels with my multimeter.

 

On the 3.3V pins testing vs GND, I see 3.3V, but on the Vcc pin I only see about 0.2V.

 

It's about the same when I have the sensor board hooked up.

 

How can I get a 5V or 4.7V output on the Vcc pin please?

 

Thanks for the help!

2024-03-31 11:22:03

Argh, sorry. Silly me, It was just a pin that came loose!

 

I should have tested the points from the side of the board, but I'm glad to solve - I've wasted a hours of trying silly stuff!

 

userHeadPic Eugenes