Live wire

Yesterday evening, the whole groupe work together to test the power transmission through the ball bearings. Those tests are significant to determine if we need to add a 5V-regulator on the main board, and which regulator we choose for the bottom PCB  to account for the tension drop.

Electrical setup

We had ordered the resistors (two 0.5Ohms/25W resistors and one 0.1Ohm, 30W)  described in this article and used them to build the following electrical setup:

The generator supplies 5V because we plan to use a 5V regulator on the bottom PCB and send 5V to the main board through the ball bearings. … Read more