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SIMPLE CIRCUIT Mole Deterrant

FIGURE 1:

SIMPLE CIRCUIT Mole Deterrant
Author: Nigel Gardner BlueBird Electronics Wiltshire, U.K. NigelCG@aol.com
FIGURE 1:
FLOWCHART
Wakeup
Initialize ports
INTRODUCTION
Get time (RTCC)
The basic principle is to generate a random series of pulses which then vibrate the ground. When the PICmicro wakes up, the contents of the RTCC is used as the basis to generate two time values - the pulse duration and the number of pulses. The contents of the RTCC is unknown at reset, and therefore forms random numbers upon startup.
Solenoid on
Delay
Solenoid off
Delay Sleep
FIGURE 2:
BLOCK DIAGRAM
Battery
Regulator
PICmicroTM
Solenoid Coil
FIGURE 3:
SCHEMATIC
78L05 IN4001 Solenoid on metal post
4k 100 nF PIC12C508 NPN Ground
Microchip Technology Incorporated, has been granted a nonexclusive, worldwide license to reproduce, publish and distribute all submitted materials, in either original or edited form. The author has affirmed that this work is an original, unpublished work and that he / she owns all rights to such work. All property rights, such as patents, copyrights and trademarks remain with author.
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