This board is a small controller board on which you can build your projects. It is suited for educational use, experiments or prototyping. The board uses the AT2313 microcontroller with a 10Mhz crystal. The board contains the ISP 10-pin connector for in circuit serial programming. It has also a push button reset switch for resetting the microcontroller. The I/O pins of the microcontroller are also available on two ML10 connectors for connecting for example the LCD-Interface board.
ATTiny2313 Board RS232 - [Link]
An Alarm clock with 6 CD jewel boxes mounted as a cube, using 2 X 12 leds as display and the ringer made with a spinning motor and a glass. It is based on the ATtiny2313 micro from Atmel and the schematic diagram and the ‘C’ sources for the project are freely downloadable.
Roboclock. 2 x 12 leds alarm clock with glass ringer - [Link]
user “abbtech” writes:
The heart of the PWM Fan Controller is a PIC 12F675 microcontroller. This microcontroller is reading the analog output of a LM35 temperature sensor using a ADC (analog to digital converter) . The resulting digital value is converted to a temperature and a fan is powered proportionally to how hot the sensor is.
PIC 12F675 PWM Fan Controller - [Link]
This project is a PWM Fan controller based on PIC18F25K20. It offers a variable speed control, low acoustic noise, reliability, long lifetime, low power consumption, protection features. The MCU get the temperature from the sensor (D18B20), and after will do a conversion Celsius degrees and then it´s generated a PWM on PORTC.2 with 6 different levels.
PIC PWM Fan controller - [Link]
The system is contructed of 16 custom built PCBs, each containing a PIC16F1827 microcontroller which receives data via I2C from a master board and controls 3 MAX6964 LED Drivers via I2C – one each for red, green and blue components. Each board then runs two ribbon cables of 8 RGB LEDs. The master board is running on a PIC18F26J50, a very powerful little PIC with an awful lot of I/O capability. Its reading the animations from an SD Card formatted with FAT32 using an SPI interface, it then chunks this data up, and sends it via the main I2C bus to the slave boards. [via]
Illuminatrix LED Project – [Link]
A data logger is a device that records measurements over time. The measurements could be any physical variable like temperature, pressure, voltage, humidity, etc. This project describes how to build a mini logger that records surrounding temperature values. It has following features:
- Uses just one 8?pin chip, so very compact size circuit.
- Temperature range: 0 to +125°C.
- Can store up to 254 measurements.
- Sampling interval options: 1 sec, 1 min, 10 min
- Reset feature to clear all previous measurements.
- Serial transfer of recorded measurements to a PC
- Three tactile switches for user inputs and a LED indicator.
Single Chip Temperature Data Logger - [Link]
This watch is built around a 3V-powered ATmega328P running at 8MHz. Time is shown using 2 circles of 12 LEDs, in a manner similar to an analog watch (with hands). Minutes are indicated on the exterior circle of green LEDs; hours are indicated on the interior circle of red LEDs, as shown in this video.
Introducing DWex – Duino Watch for experimenters - [Link]
This project shows how to build a Inductor & Capacitor Meter based on ATMEGA32. The result is shows on LCD. The way it works is simple, you change an oscillator frequency with the part you want to find is value and by doing some maths you calculate the unknown part value. Check source code and schematic on the link below.
Inductor & Capacitor Meter (LCMeter) - [Link]