How to develop firmware and program Skoobot
I made black-gnd, red-vcc, yellow-reset, blue-sdio, green-sdclk. These signals are silkscreened on the companion board. On the ribbon cable, the blue wire is pin1. Please note the key on the J-Link connector (the raised square in the center). This corresponds to the image of the pinout here on the right. When the robot is switched off, it is in UART mode, green led on. Switch the robot on, then it is in J-Link mode, green led off. Then it can be programmed.