ARC project 1

First soldered board

front

back

schematic

Description

This is a PIC based small controller board intended for promotional handouts and morse code practice. More detail will be added as the project is finalized.

More pictures at http://burke.mmae.ucf.edu/gallery3/index.php/ARC/Project1

The source code for this project is now in the club git repo. Ask for access.

Modes

Change modes by pressing the mode button. The modes are as indicated by the numbered LEDs.

#	label	description
1	tone	morse code practice key, tone emitted and light on when key is touched
2	flash	same as above, but with light only (flashlight mode?)
3	k4ucf	emit the club call sign with tone and light
4	rnd tone	play one of several practice code messages for practice decoding
5	rnd light	same as above, with light only
6	???	mystery message -- decode it and get a prize (tone and light), different message on each board
7	game	TBA
8	light	play with LEDs, variable brightness and combinations

Parts list

pcb	pn	description
R1-R4 R6 SM0603	ERJ-3GEYJ103V	10 kOHM 0603
R5	ERJ-3GEYJ471V	470 OHM 0603
R7	ERJ-3GEYJ151V	150 OHM 0603
R8	ERJ-3GEYJ102V	1 kOHM 0603
R110	ERJ-3GEYJ105V	1 MOHM 0603
SM0201	CR0201-JW-153GLF	15 kOHM 0201
SM0402	WR04X1002FTL	10 kOHM 0402
SM0805	RMC1/1003R9JATP	3.9 OHM 0805
SM1210	AC1210JR-0710RL	10 OHM 1210
D1	BAT54WS-V-GS18	BAT54 diode
D2		LED (power indicator) 0603
Q1-Q3	MMBT3904LT1G	NPN Transistor
C1 C2 C11 C12	C1608Y5V1H104Z	0.1 uF 0603
C9 C10	C1608C0G1H220J080AA	22 pF 0603
D3-D10		red or green or yellow LEDs 0603
SW1 SW3		push button
SW2		slide switch (power)
U1	PIC18F14k50	cpu
X1	SCK12.000	12MHz Crystal
J1		micro USB
BT1		CR2032 Button Cell Holder
SP1	PB-1226PEAQ	Speaker
P4	NONE	Programmer Port

related links

• microchip mplabx development environment