The M5Stack Voltmeter Unit (ADS1115) is a voltage meter that can monitor the voltage in real-time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X49).
There is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S.
The product is well packaged, well documented about wiring. But there is no software documentation, and even if the base-component is the ADS1115, there is no running software sample describing how to configure the registers and how to read the voltage. Waiting for detailled information to use the product. Best regards. (Comment Robotshop: Thank you for your review. We have contacted you by email.)