@leaguen said in Power needed:
The HC-SR501 is an old Arduino era sensor designed for 5V. Many people use it with an ESP32 3.3V with success.
But yeah, putting 5V to either 5V pin will power the ESP32 @ 3.3V and 3.3V will appear at the side 3.3V pin. And 5V will appear on the Grove 5V pin.
Very clever design.

@felmue

This error occurs inconsistently—sometimes very frequently, and other times, it only happens after 4,000 or 5,000 scans. In some cases, I encounter the issue after just 20 scans.

Hello @Olbi77

if you want to stay with UIFlow1 you can use the following I2C blocks to turn external 5 V output on and off:

UIFlow1_M5Core2v11_ExtPowerOnOff_20240903.png

Thanks
Felix

Hello @bluedude

I just double-checked with M5AtomS3 and it works for me as well. UIFlow Project Zone: M5AtomS3_WiFi_MQTT_UIFlow2.1.5

I am sorry, no, I do not have a Smart Config WiFi example.

Thanks
Felix

@TomKatt check M5Stack github

@Lupa13 Have you installed the latest python and have you installed ESPTools ?

@minecraftapks-0 Sounds very interesting and could be a great idea. Look into how it works on the Raspberry pi.
Both the Pi and the M5Stack use Micropython as the base programming language so it could be possible with minimal porting.