Input Devices
✔️ Probe an input device's analog levels and digital signals that you have designed and read it
Individual Assignment
✔️ Measure something: add a sensor to a microcontroller board
Noise Controller
I want to use a physical input device to control motion graphics. I am particularly interested in computer-generated noise, so I decided to use a potentiometer to control noise inside TouchDesigner. I started with the multi-purpose D11C devkit board developed by Quentin Bolsee for rapid prototyping. I will continuously design and produce bespoke PCB boards based on the same schematic.
The Process
1. PCB Board Production
- Milling
- Sourcing and soldering
- Loading the bootloader
I did two multi-purpose boards, and one is working, while another is still under debugging.
D11C devkit board designed by Quentin Bolsee
SAMDino designed by Adrián Torres
2. Loading the Bootloader
I used the new method by following Arduino SAM Tutorial.
3. Programming in Arduino IDE
Serial communication between the board and TouchDesigner.
Testing with Arduino IDE's Serial Monitor
int potPin = A15;
int potVal;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
// put your main code here, to run repeatedly:
potVal = analogRead(potPin);
Serial.println(potVal);
delay(100);
}
4. Programming in TouchDesigner
- Receive serial messages.
- Remap the data range from 0-1023 to 0-2.
- Use the data as Amplitude of the noise, which is used to displace the primitive square surface.
