Building the Board
Protostack's ATmega32A Development Kit comes with everything you need to build the board including the ATmega32 U microcontroller, and everything else down to the components that form the power supply. Unfortunately, this kit does not include any hardware to build in a USB to UART converter, so you will need to utilize a programmer to program the board. Protostack recommends using their USBASP AVR Programmer to program the converter.
Included in the kit are the following components:
- 1X DC Jack 2.1 x 5.5mm
- 1X IC Socket 40 pin 15.24mm
- 1X IDC Male connector, 10 pin, right angle leads
- 1X ATMEGA32A-PU Atmel 8 Bit 32K AVR Microcontroller
- 1X LED 5mm Yellow
- 2X Capacitor - Ceramic Axial 100V 22pF
- 4X Capacitor - Ceramic 50V 100nF
- 1X Capacitor - Electrolytic 25V 100uF
- 1X Capacitor - Electrolytic 25V 47uF
- 1X 16MHz Crystal
- 1X Inductor - 10uH
- 1X PPTC Resettable Fuse - 72V, 500ma
- 1X Resistor - Metal Film 1/4W 10K OHM
- 1X Resistor - Metal Film 1/4W 1K OHM
- 1X 40 Pin AVR Development Board
- 1X 1N4004 1A Rectifier Diode
- 1X L7805 +5V Linear Voltage Regulator
- 1X Micro Tactile momentary SPST switch
Soldering up the ATmega32A Development Kit is actually quite simple and anyone with a beginning knowledge of soldering can accomplish the task in less than half an hour. I was able to solder up the whole board in just less than 10 minutes, including taking photographs of the process. One thing to note is that some of the components look quite similar and you should always double check their values and reference back to the user manual before soldering them into place.
Once everything is soldered up your board should look like the one pictured below. Notice that I have installed the ATmega 32U microcontroller with the #1 pin facing away from the power supply and programming header. I placed the chip in this orientation because the board indicated the chip to be placed like this. The Silk screen on the PCB had the same half circle drawn on it that the top of the chip does. Always pay attention to how the chip is designed to orient as placing it the wrong way will result in failure upon power up.