Read the Full Story & Testing NotesProduct Discussion on Discord (members)
Part: S1 · Input: 1× 4mm · Output: 1× 3.5mm tip/sleeve
Step Files Only: the case and lid STEP files. PCB gerbers, BOM and pick-and-place are in Discord — ask in the Switch 1 thread.
Each channel on your box has two poles, A+ and B-. Switch 1 sits on one of those poles and lets you choose which zone of a bipolar electrode that pole hits — or both at once.
A typical hookup
Take one channel. Plug A into a ring — the Pinnacle is a good one. Plug B into the Switch 1's 4mm input.
Then plug a regular e-stim cable into the Switch 1's 3.5mm tip/sleeve jack. That cable's two 4mm ends go to the two zones of a bipolar ring (the Clarifier, or another two-port ring). Left is one zone, right is the other, centre is both (A+B).
Combining the zones changes the surface area, so the sensation shifts — more in the ring, or deeper on the other electrode — without unplugging anything.
They cascade. One of those 4mm ends can go into a second Switch 1's 4mm input instead of an electrode, and that switch drives two more zones the same way. First switch in A is electrode 1; in B is whatever is on the second switch; both in the centre is everything at once.
The 4mm input needs a straight banana; a 90° does not clear the back. A Switch 1 ships with one 90°/straight cable.
Care: this is a hand-assembled electronics box, not a printed electrode. Keep it dry.