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Electronics Pieces for Tennis Machine

Here are some crude pieces of the electronics I need to put together to run the tennis ball machine I'm building. This is all experiment/prototype stuff. The white "breadboard"on the left is just using a voltage regulator circuit for 5v (componnents on upper left) and the Atmega16 microcontroller (large chip), which generates the PWM signal. The microcontroller is also connected through the breadboard to the LCD at the top. The rest of the stuff on the white board is left over from various tests. The board on the right is the "power" portion of the PWM motor controller. It takes the PWM signal from the microcontroller, and uses it to switch on and off a pair of MOSFETs (via a driver chip) to provide power to the motor. The MOSFETS are in parallel to increase power capacity, although I'm not sure more than one was really needed.

 

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Uploaded on July 12, 2007
Taken on July 11, 2007