STM32F4VE

• Quick overview
• Notes
  • 1
• Connections
  • Buttons
    • Analog inputs
  • Rotary encoders
  • Potentiometers
  • FSRs
  • Single-color LEDs
  • RGB LEDs
  • Displays
  • DIN MIDI
  • Touchscreen

Quick overview

• Power: Mini USB
• MCU: STM32F407VE
• DIN MIDI: Yes [1]
• LED indicators: Yes
• Digital inputs: 28
• Digital outputs: 18
• Analog inputs: 12
• Schematic: Link

Notes

1

This board doesn't have DIN MIDI connectors and required additional components so those have to be added to board in order to be used. The following schematic should be used:

Pinout is listed in DIN MIDI section.

Connections

Buttons

Button #	Pin 1	Pin 2
0	E2	GND
1	E4	GND
2	E6	GND
3	E3	GND
4	E5	GND
5	C13	GND
6	D7	GND
7	D3	GND
8	D1	GND
9	C12	GND
10	C10	GND
11	C8	GND
12	C6	GND
13	D14	GND
14	D12	GND
15	D10	GND
16	D8	GND
17	D4	GND
18	D2	GND
19	D0	GND
20	C11	GND
21	A15	GND
22	C7	GND
23	D15	GND
24	D13	GND
25	D11	GND
26	D9	GND
27	B15	GND

Analog inputs

Button #	Pin 1	Pin 1	Pin 2
28	A0	GND with 10k resistor	3V
29	A1	GND with 10k resistor	3V
30	A2	GND with 10k resistor	3V
31	A3	GND with 10k resistor	3V
32	A4	GND with 10k resistor	3V
33	A5	GND with 10k resistor	3V
34	C0	GND with 10k resistor	3V
35	C1	GND with 10k resistor	3V
36	C2	GND with 10k resistor	3V
37	C3	GND with 10k resistor	3V
38	C4	GND with 10k resistor	3V
39	C5	GND with 10k resistor	3V

Rotary encoders

Encoder #	Pin 1	Pin 2	Pin 3
0	E2	GND	E4
1	E6	GND	E3
2	E5	GND	C13
3	D7	GND	D3
4	D1	GND	C12
5	C10	GND	C8
6	C6	GND	D14
7	D12	GND	D10
8	D8	GND	D4
9	D2	GND	D0
10	C11	GND	A15
11	C7	GND	D15
12	D13	GND	D11
13	D9	GND	B15

Potentiometers

Potentiometer #	Pin 1	Pin 2	Pin 3
0	3V	A0	GND
1	3V	A1	GND
2	3V	A2	GND
3	3V	A3	GND
4	3V	A4	GND
5	3V	A5	GND
6	3V	C0	GND
7	3V	C1	GND
8	3V	C2	GND
9	3V	C3	GND
10	3V	C4	GND
11	3V	C5	GND

FSRs

FSR #	Pin 1	Pin 2	Pin 2
0	3V	A0	GND with 1k resistor
1	3V	A1	GND with 1k resistor
2	3V	A2	GND with 1k resistor
3	3V	A3	GND with 1k resistor
4	3V	A4	GND with 1k resistor
5	3V	A5	GND with 1k resistor
6	3V	C0	GND with 1k resistor
7	3V	C1	GND with 1k resistor
8	3V	C2	GND with 1k resistor
9	3V	C3	GND with 1k resistor
10	3V	C4	GND with 1k resistor
11	3V	C5	GND with 1k resistor

Single-color LEDs

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

LED #	Anode	Cathode
0	E7	GND
1	E9	GND
2	E11	GND
3	E13	GND
4	E15	GND
5	B11	GND
6	B13	GND
7	B1	GND
8	E8	GND
9	E10	GND
10	E12	GND
11	E14	GND
12	B10	GND
13	B12	GND
14	B14	GND
15	E1	GND
16	B9	GND
17	E0	GND

RGB LEDs

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

RGB LED #	Anode (Red)	Anode (Green)	Anode (Blue)	Cathode
0	E7	E9	E11	GND
1	E13	E15	B11	GND
2	B13	B1	E8	GND
3	E10	E12	E14	GND
4	B10	B12	B14	GND
5	E1	B9	E0	GND

Displays

Signal	Display	Pin
Vcc	Vcc	+3V
GND	GND	GND
SDA	SDA	C9
SCL	SCL	A8

DIN MIDI

This board doesn't have DIN MIDI connectors so they have to be added to the board with corresponding circuitry. Schematic is available here.

MIDI In	MIDI out
A10	A9

Touchscreen

Screen	Pin
Vcc	+5V*
GND	GND
Rx	D5
Tx	D6