Rotary encoders were polished for the same diameter as input holes on the knobs. They have 3 outlets for 12-steps rotation movements and two move outlets for the switch (pushing on the knob).
Micro controller reads rotary encoders without and additional libraries.
Trellis is a monochrome keypad with 4×4 buttons connected as an array to micro controller. All 8 trellis will be connected between each other in a chain and will have just one input of five wires from the micro controller.
For trellis keypad I’m using an adafruit library Trellis-master.h
HDMI 5″ 800X480 DISPLAY WITH TOUCHSCREEN
POWER: from 50mA down to 25mA; from 5V to 3V;
RASPBERRY PI 3
|Processor Chipset||Broadcom BCM2837 64Bit Quad Core Processor powered Single Board Computer running at 1.2GHz|
|Processor Speed||QUAD Core @1.2 GHz|
|RAM||1GB SDRAM @ 400 MHz|
|USB 2.0||4x USB Ports|
|Max Power Draw/voltage||2.5A @ 5V|
|Bluetooth LE||Built in|
POWER: 2.5A @ 5V