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The goal of this project was to advance my understand of the STM32F4 microcontroller and create a tangible item that I could use on a regular basis. This project would not be practical if you had to go out and buy all of the parts, but I had most of them lying around.

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Parts Used:

	1 STM32F0-Discovery development board
	1 UC1608FB-based LCD with 240x90 resolution
	1 Project box
	2 Pushbutton assemblies: each with two pushbuttons, mounted on perf board, debounced in hardware
	1 Power switch, modified to support:
		4 servo connections
		1 charging lead
		1 external power lead
		1 battery lead.

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Source Code:

	main.c and externs.h
		The main() function and all globals are defined in main.c
		main() sets up the timers and enters an infinite loop that updates the LCD
		Externs for all of the globals are listed in externs.h		

	uc1608fb.h and uc1608fb.c
		A small library for the LCD controller.
		A 16x8 pixel font is defined.
		The pixels are stored in a pixel buffer which is periodically sent to the LCD.

	simple_gpio.h and simple_gpio.c
		A very small library that makes GPIO operations a little easier.
		This allows pins to be referenced as "A0" etc., instead of splitting up the port and pin number.

	screens.h and screens.c
		Functions that draw the screen based on the values of the globals.

	interrupts.h and interrupts.c
		Interrupt service routines for the timers.

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Understanding the Code

	-Global variables are used to store the current state.

	-The pushbuttons are connected to timer inputs. The timer ISRs increment or decrement the global variables when appropriate (ISRs enforce min/max values, etc.)

	-When the increase or decrease pushbutton is held down, the corresponding timer repeats its action (increment or decrement,) ramping up in speed while the button is held down.

	-An infinite loop in main() is used to update the pixel buffer, and then the LCD, several times per second.

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License

	The following files were written by myself (Farrell Farahbod) and I am releasing them into the public domain:

		main.c
		externs.h
		interrupts.h
		interrupts.c
		screens.h
		screens.c
		uc1608fb.h
		uc1608fb.c
		simple_gpio.h
		simple_gpio.c

	The other files were NOT written by myself and are covered under different licenses. See each file for details.