This is a mutli-mode clock project based on attiny2313. it employs a 8×8 led matrix as display. with the limited resolution, this 12 hour clock shows time in 6 different modes. The circuit employs row and column multiplexing to drive the leds, one row at a time, this gives a 12.5% duty cycle when “sets” […]
ATTiny2313 Multi-mode LED Matrix Clock Read More »
Description Features: Measures temperatures from -55°C to +125°C Three LED’s to indicate in what range the temparature is. User definable thermostat with high and low settings Output via a relay to control a heater element or a blower fan (or something else) Power supply ………………….4.5 to 5.5 VDC Power consumption ………..15mA This circuit uses a
Temperature Indicator Using attiny2313 micrcontroller Read More »
Description With this circuit you can drive a unipolar stepper motor. It operates in full step mode. You can get a stepper motor from an old 5.25 disk drive. The AVR attiny2313 micro controller controls the pulses for the stepper motor. The pulses are amplified by the ULN2003 driver. The driver accepts 5V inputs, the
Stepper motor Driver Using AT2313 microcontroller Read More »
Description This is a peripheral board with 4 relais, rated at 5A/250V each. The board has a ML10 output connector for connection with the AT2313 Project board. It has also 4 LED’s for indication which relais is switched on. Hardware The circuit is simple, it consists of no more then an ML10 connector, a ULN2803A,
Relais Board Using AT2313 Read More »
This project displays the temperature on an LCD display with an resolution of 0.06degrees. DS1820 is used for sensing the temperature. It can measure temperature range from -55deg to +125deg. But i take care of only the possitive temperature. There are 3 switches to change the alarm temperature, the user can increment the Alarm temperature
DS1820 Temperature Controller using atmega8515 microcontroller Read More »
Description The PCF8583 is a clock/calendar circuit based on a 2048-bit static CMOS RAM organized as 256 words by 8 bits. Addresses and data are transferred serially via the two-line bidirectional I2C-bus. The built-in word address register is incremented automatically after each written or read data byte. Address pin A0 is used for programming the
Real Time Clock PCF8583 Using AVR microcontroller Read More »
Here’s an another project, which makes an Scrolling LED display. Here 64 leds which are connected to an Matrix display. The Anodes are drived through an Driver IC UDN2981 and the cathodes are drived through ULN2803. The Atmega8515 is used in this project to control the display. The microcontroller is programmed with Bascom AVR. Circuit
8×8 Dotmatrix Scrolling LED display using atmega8515 microcontroller Read More »
This project is used to automate the home appliances through Bluetooth enabled PC. You can use the USB Bluetooth at the PC side and an Serail Bluetooth converter is used at the microcontroller side. The sparkfun bluetooth module is used here, but you can use any serial bluetooth module which supports SPP profile. Atmega8 microcontroller
Bluetooth Based Smart Home using atmega8 microcontroller Read More »
Here’s an another project with LED. It can show different patterns. There are 11 channels of LED. Circuit Diagram For more Detail: Multipattern Running light using ATtiny2313 microcontroller
Multipattern Running light using ATtiny2313 microcontroller Read More »
Description The ATMega16 chip in the M16 has a real-time counter that operates asynchronously when a 32,768hz watch crystal is connected to it, providing a real-time clock. Bascom has built-in support for the RTC, making it very easy to use time functions. The watch crystal needs to connect to pins TOSC1(pin 28) and TOSC2(pin 29).
Real Time Clock ATMega16 Read More »
