This ATMega168-based battery tester allows you to find out the overall capacity of the rechargeable battery. It can shows how long will a battery last from the time itâs fully charged to the time that the âlow batteryâ indicator comes on your device. It can be used to test multiple cells individually, and display the […]
Atmega Rechargeable Battery Capacity Tester using ATMega168 microcontroller Read More »
The project allows you to analyze characteristics of unknown/junk battery especially the capacity and variation of the voltage on discharge. It is controlled with a PC via a serial port. No external power supply is required because it is powered by RS-232C signals. It uses ATmega48 as main controller for dummy load and constant current
Simple Automatic Battery Discharge Analyzer using ATmega48 microcontroller Read More »
The Security Keypad Lock Project is a basic access control system based on ATtiny2313. It can be modified to protect just about anything. The âCode Lockâ ability will allow the rightful user to deploy the platform to any property that requires simple password-protection. The âAVRâ RISC microcontroller used ensures low costs. Possible applications may include:
AVR Security Keypad Lock using ATtiny2313 microcontroller Read More »
This Speaking Calculator project is an interesting device built just by three chips that can be very useful to blind people. The system has four basic operations (addition, subtraction, multiplication and division), and the functions: clear all, change of sign (+/-), inverse (1/x), square root (v), pi number (p), add with memory (M+) and read
Speaking Calculator using AVR ATmega88 microcontroller Read More »
The Lord of the Keys is password managing system that able to store many usernames and passwords inside a Java Cardâą smart card (one of the most secure methods to store confidential information). Whenever a dialog box appears in an application or web browser requesting a username and password. These security features can be found
Handy Password Managing System, Lord of the Keys using AVR ATmega168 Read More »
This LED candle is built to mimic the look of a traditional candle without the dangers associated with an open flame. It uses high brightness LED and is controlled by ATtiny85. It could be useful as movie props where you cannot afford to have a candle go out during a take or in your home
AVR LED Candle using ATtiny85 microcontroller Read More »
Mini Logic analyzer is ATmega8-based electronics tool that can be used to watch and analyze logic transitions 0 or 1 of a digital data signal. It comes with Nokia 3310/5110 LCD to display signal and it has 4 channel inputs. A digital data signal can be found on the output pin of TSOP-1730 Infrared Receiver,
Mini Logic Analyzer using ATmega8 microcontroller Read More »
A âClapperâ is a device that will turn on or off an AC appliance that is plugged into it, such as a lamp or fan when it âhearsâ you clap twice in approximate succession. Pete has built a Clever Clapper with various task. If user claps twice within one second, the circuit toggles the lamp
Clever Clapper using ATtiny2313 microcontroller Read More »
Introduction The goal of this project was to design and build a gaming device capable of levitating a ping pong ball at varying heights based on the proximity of the user to the device, utilizing a multi-tasking kernel on the ATMega16 platform. The project incorporates a fairly complex mechanical system and utilizes many features of
AVR Ultrasonic Spheroid Levitation Device using ATMega16 microcontroller Read More »
AvrPhone is ATmega128A-based simple mobile phone with touch screen and SIM100S GSM module. The display uses 2,4âł LCD with a resistive touch screen and ILI9325B driver (16 bit parallel bus). The LCD breakout board contains SD card slot and XPT2046 touchscreen controller. They both are connected to AVRâs SPI bus. The project is powered by
AVR Based Mobile Phone using AVR ATmega128A microcontroller Read More »
