I 'm planning on controlling an RC car via ΒeagleBoard-xM. Pistol transmitter uses ic TX2 encoder.
As image shows, right-left commands are implemented by a 3-part conductive area. Specifically, when area "R" gets grounded, a signal for right rotation is being transmitted. When area "L" gets grounded, a signal for left rotation is being transmitted.
The idea is BeagleBoard-xM to send these signals by two different GPIO ports. Presence of voltage in GPIO port, means signal to be transmitted. However, when I connected two wires for right rotation (one in conductive area "R" and the other to GNG) signal has been transmitted when I powered supply the circuit. This makes sense, as area "R" was already grounded.
The aim is a signal to be transmitted, when wire in conductive area "R" has voltage by BeagleBoard-xM. Is something like this possible?