Inverter is brain of backup system. Without inverter, battery is useless for AC. It changes DC power to AC power. We can use inverter at home, solar and for battery backup. This project is a mini and Simple 3.7V DC to 220V AC Inverter Circuit Only with a 3.7V battery, one transistor, one transformer and […]
Smart Energy Meter Circuit with Arduino UNO
Electric bill increasing day by day. So we need smart way to measure power use. Here is a simple project using Arduino UNO, ACS712 current sensor and 16×2 LCD with I2C. It shows real time current, voltage and power. This project for Smart Energy Meter Circuit with Arduino UNO help to monitor load and save […]
LED Binary Counter Circuit
This project is for LED Binary Counter Circuit It uses IC 555 timer as clock pulse generator. And it uses 74HC4040 binary counter IC. LEDs are connected to output which show binary count. It works from 6V battery or DC supply. Circuit Working: Parts List: Component Value Quantity Resistors 1k 2 10k 1 220Ω 1 […]
Audio Spectrum Analyzer Circuit using IC MSGEQ7
Music is not only for ears, it can be seen also. With MSGEQ7 chip we can make music dance in lights MSGEQ7 is a chip made for audio spectrum analysis. It divides audio into 7 frequency bands. Each band gives an output voltage. This voltage can be read by microcontroller. Like Arduino, ESP32, STM32 etc. […]
RGB LED Color Control Circuit with LDR and Arduino
Do anyone like lamps that change color with magic? This project for RGB LED Color Control Circuit with LDR and Arduino makes its real. Using RGB LED and three LDR light sensors, we can create a smart lamp that mix colors based on light around it. Just a simple circuit and with some code, we […]
Arduino Based GPS Digital Clock Circuit
Normal digital clock use RTC chip or manual setting. Problem is RTC needs drift and reset. But here Arduino Based GPS Digital Clock Circuit solves the problem. GPS talk with satellite and always give exact time. Arduino read GPS time and show on LCD. So clock is never wrong, as it always auto update from […]