I followed (Pieter P) Motor fader on GitHub - tttapa/Control-Surface-Motor-Fader: Arduino motorized fader controller, and example code for integration with the Control Surface library.. I just uploaded the sketches “MIDI-Controller” to the first controller and “Motor-Controller” to the second controller without doing any changes in the code. both controllers connected to the same computer via usb.
I’m not getting any movement when I try to control the fader from the DAW. Also, when I move the pot fader it's not moving the daw fader properly, sometimes it's fluctuating and often its not moving. I'm not sure if I need to change anything in the code or my circuit is not correct. I’m only using one fader as a test.
First controller: UNO with atmega16u2, I changed the firmware to be dual-bootable USB MIDI/SERIAL using “DFU firmware programming” with “Pimp my mocoLUFA”. This controller is showing as control surface on DAW and i can set it as input/output for Mackie control.
Second controller: UNO with CH340.
Fader 0:
- A0: wiper of the potentiometer
- D8: touch pin of the knob
- D2: input 1A of L293D dual H-bridge 1
- D3: input 2A of L293D dual H-bridge 1
- +5V of the Arduino: [EN 1, 2] and [Vcc 1] of L293D dual H-bridge 1
- Ground of the Arduino: connects to [Ground pin 4, 5, 12, 13 of L293D dual H-bridge 1], [Ground of 9v Battery] and [ground of the first UNO]
- +9V Battery: Vcc 2 of L293D dual H-bridge 1
- OUTPUT 1 of L293D dual H-bridge 1: DC motor +-
- OUTPUT 2 of L293D dual H-bridge 1: DC motor -+
- A4 of the first UNO: A4 of the second UNO
- A5 of the first UNO: A5 of the second UNO
