![]() The enclosure must have enough space to hold the battery, finished circuit board, vibrator, switch, and the indicator lamp. You can use a medium-size prototype enclosure for this snake repeller. The actual construction should not present problems as only through-hole components are involved and a single-side circuit board. Quick video link – Snake Repeller Breadboard Prototype Construction Clues Given below is the random snap of my experiment on breadboard. Do not use a home-made vibration motor (built with cheap toy car/disc drive motor + eccentric load) as an alternative here. ![]() The vibration motor used in my prototype has a size of 6.7×14.5mm ( I got it from eBay). VBM: 3-5V Vibration Motor / Pancake Motor (see text) LED1 is a status indicator while D1 is for circuit protection against inductive kick-back. R1 and C1 in the main determines the drive pattern of the vibration motor (VBM). ![]() Just to simplify, T1 is responsible for the on/off pulses, and T2 works as the vibrator driver (actually a 2-transistor complementary relaxation oscillator). 6 Addendum Circuit Diagram Circuit Diagramįunction of the circuit is very simple – to briefly turn on a vibrator at regular intervals. ![]()
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