Fig. A: Inside the camera, with the on/off button lifted.
Fig. B: The multimeter display shows that the inner disk
connects to ground.
Fig. C: Soldering a wire to the on/off button-push
contact (outer ring). Fig. D: Touching the shutter lead to
ground (blue) takes a photo.
Fig. E: Shutter, on/off, and ground leads exit the case
through the shutter button hole. Fig. F: Outboard buttons
let you keep using the camera by hand.
Fig. G: The paper template and cut sheet metal for the
add-on control box. Fig. H: The control box glued to the
top of the camera.