Article

Shoo Heron!

Outsmart a clever bird

The idea is to protect the pond with an invisible barrier that is connected to a powerful water spray. Herons dislike being sprayed and will leave. Furthermore, they can’t easily determine what causes the spray to start.
The protection consists of an infrared transmitter and receiver that are mounted close to each other.

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Materials

110337-PCB.pdf

110337-11.zip

Gerber file

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PCB

Download Gerber file: 110337-1.zip

Component list

Resistors
R1,R2 = 10kOhm
R3 = 1kOhm
Capacitors
C1 = 10µF 63V radial, pitch 2mm
C2,C5,C7 = 100nF, pitch 7.5mm
C3,C4 = 1µF 63V radal, pitch 2mm
C6 = 220µF 35V radial, pitch 3.5 or 5mm
C8–C11 = 10nF, pitch 5mm
Halfgeleiders:
D1–D4 = 1N4004
IC1 = PIC12F509-I/P, programmed
IC2 = S202T02F
IC3 = 7805
IC4 = 7812
Miscellaneous
F1 = fuse, 250mAT, w. PCB mount holder and cap
K1,K2 = 2-way PCB terminal block, pitch 7.5mm
K3 = 2-way PCB terminal block, pitch 5mm
K4 = 3-way PCB terminal block, pitch 5mm
TR1 = power transformer, secondary 2x6V, 1.5VA (e.g. Block AVB1,5/2/6)
PCB # 110337-1