nRF5340 DK

• Quick overview
• Connections
  • Switches
    • Analog inputs
  • Rotary encoders
  • Potentiometers
  • FSRs
  • PWM outputs
  • Traffic indicators
  • I2C
  • DIN MIDI
  • Touchscreen
  • Bootloader switch
• Flashing
• Notes

Quick overview

• OpenDeck target name: nrf5340dk
• Power: USB
• MCU: nRF5340
• MIDI: USB, DIN, BLE
• OSC: No
• Traffic indicators: 6
• Digital inputs: 12
• Outputs: 4 (PWM / level control)
• Analog inputs: 6
• Board docs: nRF5340 DK
• Buy links:
  • Mouser
  • TME

Connections

Pinout to use as an reference to pins in later sections:

Switches

Switch #	Pin 1	Pin 2
0	Button 1 / P0.23	GND
1	Button 2 / P0.24	GND
2	Button 3 / P0.08	GND
3	Button 4 / P0.09	GND
4	P1.04	GND
5	P1.05	GND
6	P1.06	GND
7	P1.07	GND
8	P1.08	GND
9	P1.09	GND
10	P1.10	GND
11	P1.11	GND

Analog inputs

Switch #	Pin 1	Pin 1	Pin 2
12	P0.04	GND with 10k resistor	3V
13	P0.05	GND with 10k resistor	3V
14	P0.06	GND with 10k resistor	3V
15	P0.07	GND with 10k resistor	3V
16	P0.25	GND with 10k resistor	3V
17	P0.26	GND with 10k resistor	3V

Rotary encoders

Encoder #	Pin 1	Pin 2	Pin 3
0	Button 1 / P0.23	GND	Button 2 / P0.24
1	Button 3 / P0.08	GND	Button 4 / P0.09
2	P1.04	GND	P1.05
3	P1.06	GND	P1.07
4	P1.08	GND	P1.09
5	P1.10	GND	P1.11

Potentiometers

Potentiometer #	Pin 1	Pin 2	Pin 3
0	3V	P0.04	GND
1	3V	P0.05	GND
2	3V	P0.06	GND
3	3V	P0.07	GND
4	3V	P0.25	GND
5	3V	P0.26	GND

FSRs

FSR #	Pin 1	Pin 2	Pin 2
0	3V	P0.04	GND with 1k resistor
1	3V	P0.05	GND with 1k resistor
2	3V	P0.06	GND with 1k resistor
3	3V	P0.07	GND with 1k resistor
4	3V	P0.25	GND with 1k resistor
5	3V	P0.26	GND with 1k resistor

PWM outputs

Note: current-limiting resistors for LEDs are required in order to avoid damage to the board.

Output #	Anode	Cathode
0	P1.12	GND
1	P1.13	GND
2	P1.14	GND
3	P1.15	GND

Traffic indicators

Indicator	LED
USB input	LED1 / P0.28
USB output	LED2 / P0.29
DIN input	LED3 / P0.30
DIN output	LED4 / P0.31
BLE input	LED3 / P0.30
BLE output	LED4 / P0.31

I2C

Signal	Pin
Vcc	3V
GND	GND
SDA	P1.02
SCL	P1.03

DIN MIDI

This board doesn't have DIN MIDI connectors, so they have to be added to the board with the corresponding circuitry. Use this schematic:

MIDI In	MIDI out
P1.00	P1.01

Touchscreen

Screen	Pin
Vcc	5V
GND	GND
Rx	P1.00
Tx	P1.01

Bootloader switch

Hold OpenDeck switch 0 / P0.23 low while resetting or powering the board to enter the OpenDeck bootloader.

Flashing

To flash this board with the OpenDeck firmware, go to the OpenDeck configurator and follow the instructions.

Notes

DIN MIDI and touchscreen use the same UART pins on this board, so only one of them can be enabled at a time.