Wazuka-Crossing

Miniature of a Japanese-style level crossing

Full Version (with level crossing barriers)

Under Development

Simple Version (without level crossing barriers)

Schematic

MCU

• PIC16F15213 PDIP / SOIC / DFN

Pin	Name	Function	Target
1	VDD	VDD
2	RA5	DO	Lamp 1
3	RA4	DO	Lamp 2
4	MCLR	MCLR
5	PWM3	PWM	Speaker 1
6	ICSPCLK/PWM4	ICSP/PWM	Speaker 2
7	ICSPDAT	ICSP/DI	Button
8	VSS	VSS

Timers

Freq.	Timer	Purpose
20 kHz	Timer2	Sound PWM (PWM3)
156 Hz	Timer2 / 128	Lamp PFM (S/W)
~30 Hz	Timer2 / 4 / ~150	Sound Modulation
20 Hz	Timer0	Train Detection, Button
1.7 Hz	Timer0 / 12	Lamp Flicker

Notes

The PICkit3 does not officially support the PIC16F152 family. You can program PIC16F152 devices by PICkit3 with PICkitminus.