https://community.m5stack.com/topic/7179/vmeter-only-reads-upto-3v-and-then-the-adc-value-loops/5
Vmeter only reads upto 3v and then the ADC value loops | M5Stack Community
Jan 12, 2025 - @erkel Well, seeing as how you are not connecting it to a M5Stack product, but a RPi, what library (driver) are you using? Also: What language are you progra...
https://kamami.pl/en/peripheral-modules-m5stack/582057-m5stack-vmeter-unit-digital-voltmeter-module-u087-5906623409327.html
M5Stack VMeter Unit - digital voltmeter module - Kamami on-line store
Voltmeter module for M5Stack sets. It can measure DC voltage in the range from 0 to 36 V with an accuracy of approx. 0.5 mV. M5Stack U087
digital voltmeter moduleon lineunitstore