This post is in response to a reader who asked about detecting mains electricity using a microcontroller. The easiest and safest way to detect mains electricity using a microcontroller is with an ...

The ESP32 is the central microcontroller used in the system. It is a powerful, dual-core processor with integrated Wi-Fi and Bluetooth capabilities. The ESP32 enables real-time processing of sensor ...

This post describes the preliminary results of a small Hall-Sensor module. This is widely known as KY-024 module. The KY-024 sensor module I got from an online retailer is inexpensive, and the ...

Voltage sensors are structures within a protein that can sense the membrane potential. The movement of the sensing charges, combined with the configuration of the electric field, determines the extent ...

When taking measurements from analog sensors located at long distances, voltage drops and noise can affect precision of the readings. Therefore, a voltage-to-current (V/I) module is needed to transmit ...

INA333_test.ino – This code reads the analog voltage from the VOUT pin of an INA333 (CJMCU-333) module using Arduino's analog input A0. The INA333 amplifies the small differential signal from a strain ...