Velleman EDU02 - Manual (Page 13)

13 www.vellemanprojects.com
Required parts: Solar cell, microcontroller (µC), piezo sounder, wire jumpers
How it works: The controller
requires 2-5V to operate. This
voltage is supplied by the solar
panel. The microcontroller is pre
-programmed with software that
generates a realistic cricket
chirp. The chirp signal is output
via pin 4. The electrical signal is
converted to sound via the piezo
speaker.
µC
SOLAR CELL
VD
D
2
VS
S
7
GP3/MCLR/VPP
8
GP2/T0CLKI/FOSC4
3
GP1/ICSPCLK
4
GP0/ICSPDAT
5
IC1
PIC10F200-I/PG
+
BUZ1
PIEZO
Hint: Use this circuit as a
wake-up-at-dawn alarm.
It will wake you at sunrise...