Monitoring Diesel (the Hamster)'s Movements

Magnet attached to diesel's wheel
James Rowson

Original breadboard and single-layer cage, with reed switch
James Rowson

Reed switch on side of cage
James Rowson

Motion sensor (center pin = signal)
James Rowson

Motion sensor attached to cage
James Rowson

Soldering the motion sensor plugs
James Rowson

Extended breadboard with multiple inputs
James Rowson

Multiple motion sensors attached to cage
James Rowson

Diesel's new 3-layer cage
James Rowson

Extended breadboard plus inputs
James Rowson

Breadboard and power supply (via LM317's)
James Rowson

Underside of breadboard
James Rowson

Topside of veroboard
James Rowson

Reed switch and wheel spin sensor assesmbly (biro and a bit of wood)
James Rowson

Wheel spin sensor cable tie'd onto the cage
James Rowson

Diesel in his little side pod!
James Rowson

Rest in peace little Diesel, he was 83 years old (died 17th November, 2025)
James Rowson

Chocolate the hamster arrives 29th November, 2025...
James Rowson