Sun gives us free power. We can use it in smart way. This Simple Solar Light Circuit charge battery in day and glow LED at night. There is no need of switch and no need care. It is just simple and magic from sun. Circuit Working: Parts List: Component Name Quantity Relay 12V SPDT 1 […]
DIY Solar Battery Charger Circuit
This is a small DIY Solar Battery Charger Circuit project. It charges one 3.7V lithium battery using sunlight. We can use solar cell, TP4056 charger board, one diode, one switch and one boost converter module.. This circuit make 5V power for battery and mobile charging. Graph for lithium battery charge over time: This graph show […]
Simple Solar Mobile Charger Circuit
Mobile phones need charging every day. In remote areas power is not always there. Solar charger is best option. Sunlight is free and always available in day. Small solar panels can make a charger for phone. This project is about Simple Solar Mobile Charger Circuit Circuit Working: Parts List: Component Specification Quantity Solar Panel 5.5V, […]
Simple 3.7V DC to 220V AC Inverter Circuit
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 […]