Circuit Lake

Electronic Project and Circuit Collection


Li-Ion Battery Charger and Load Sharing System with MCP73837

October 04, 2012 By: admin Category: Analog, Tutorial No Comments →

Batteries often serve as the main energy source for portable electronic devices. Although they depend on batteries, portable consumer electronic products, such as GPS devices and multi-media players, often consume energy directly from an ac-dc wall adapter or accessory power adapter (or “Auto Adapter”) when the battery is low or the device is in a […]

Home Made PCB

September 21, 2009 By: admin Category: Tutorial No Comments →

There are many ways to create PCB at home. You can manually laying out the traces with trace transfers (not recommended), photo reproduction (specialized, and expensive), or the use of a laser printer using the toner transfer method. During my experience, creating PCB using the toner transfer method is easiest and low cost. The procedure […]

Arduino Controlling Images on 4D OLEDS

September 18, 2009 By: admin Category: Arduino, Control, Interfacing, Tutorial No Comments →

This tutorial inspired by serial OLEDS from 4D Systems. Jenny has pulls it together to make you easy learning how to Controlling Images on 4D OLEDS using Arduino. This project uses µOLED-128-GMD. Before you do any coding you can test run to see if the images are on the card properly by loading images on […]

Free Schematic And PCB Editor

August 23, 2009 By: admin Category: Tools, Tutorial 2 Comments →

If you want to learn electronics for first time, you need to know about electronics theory, component, drawing schematic, and make PCB. You can get electronics theory reference from many sources like book or internet. To draw schematic and build a PCB you can try Eagle, schematic and PCB editor, to make it easy. EAGLE […]