- on Home & Garden
- Published in issue 7/2012 on page 126
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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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
R1,R2 = 10kOhm
R3 = 1kOhm
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
D1–D4 = 1N4004
IC1 = PIC12F509-I/P, programmed
IC2 = S202T02F
IC3 = 7805
IC4 = 7812
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