The module is based on the KA2284 system. It is used to measure the input signal with the 5 LEDs, which are gradually included depending on the value of the measured voltage. It can measure voltage AC or DC (selected using jumpers). Sensitivity is adjustable with a potentiometer. Works with voltages from 3.5 V to 12 V.
A module designed for reading the Li-Pol 3.7 V battery charge level in real-time. It is also equipped with alarm function when the battery level is low, or when battery power drops below a certain threshold, helps to estimate the battery life. In projects that run on solar power it helps to register the rate of change of battery power even within a month.
Kit is a quickly installed board designed to allow the user the current measurement from the power input. The kit can be used, i.a. to check the stability of the power supply under various loads, safety switches, check the battery life. Using the board you can test the power supply with the voltage of up to 30 V at current of up to 4 A.