On this web site, you will find many circuits based on AVR micro-controllers (ìC) from Atmel. The purpose of my web site is to help you work with these little powerful integrated circuits, known as micro-controllers. I will be adding more circuits, because micro controllers, are used in a lot of applications. I believe you will be helped a lot by the source code of the projects I published on my web site.
Todays, microcontrollers are very advanced. All microControllers contain FLASH memory, USART, RAM, EEPROM, SPI, TWI (I2C) and many more features like USB, CAN, DAC, all in one chip at very low cost.Micro-controllers are ideal for developing applications such as remote control by mobile phone, monitoring temperatures, pressures, air/liquid flow, driving LCD screens, electric motors, custom measuring instrument tools (oscilloscopes, volt meters etc), web servers/clients and many more.
The only limit is the end of your imagination! Be creative!
A simple and easy-to-use electronic safety lock based on the Arduino Nano board. Enter the preset password via the 12-key touchpad. If the password is correct, the circuit rotates the Servo Motor a few degrees to open the door latch mechanically.
Remote control your electrical devices through your local network or internet. The circuit contains one output (Relay) and one input (isolated input). The whole project is made in arduino nano platform with ENC28J60 ethernet module. The controlling software "Network relay" was written for Android devices and is available on Google play .
Connect TWI (I2C) sensors to ATmega8 (AVR) microcontroller. This project connects ATmega8 with 24c32 eeprom, GY26 digital compass LIS302DL accelerometer, DS1307 Real Time Clock and PCT8574T I2C to parallel converter to control a 20x4 LCD.
This RFID reader is based on a small 8 pin micro-controller (ATtiny13) and an Operational Amplifier (LM358). The reading-decoding and output the unique ID serial number of RFID tag is made entire in software by ATtiny13. No special chip is used!
Tired of spending hours and hours in wire soldering? Do your circuits look ugly and you are looking for a way to produce professional-like PCBs? Then you had better try photoetching. And the first step to do that is to have the right equipment that is an Automated Exposure Box
This is the the 3rd version of the famous SMS remote control. The older T10s cell phone has been replaced by the GM-47 GSM module by allowing you to find easier this module. Moreover, 8 inputs were added for collecting data from switches (windows, doors, limit switches and more). The SMS is now protected by a password.
Here's a very simple, but practical circuit, which is used to check the type of LAN cables (straight or cross) as well as possible faults. So we use a unit that has 8 outputs, each one of which produces a pulse successively.
This safety-lock can be work with up to 8different telecards (empty or not phonecards) as access keys. Each telecard can be registered or unregistered from the system, by press the corresponding button. Keep in mind that cell phone SIM cards don't work with this reader.
After a lot of reading books, articles and discussions with lot of electronic technicians, finally I did it. I make an 6 colour bar generator entire-in-software with AT90s2313-10 over-clocked at 17.734475 MHz !!!
This telecard reader can read the content of any telecard up to 64 bytes ( 512 bits ) and display it to hyper terminal software by using RS232 port. Keep in mind that cell phone SIM cards don't work with this reader.