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Official OpenDeck L boards

paradajz edited this page Dec 22, 2023 · 2 revisions

Quick overview

  • Power:
    • v3.0: Micro USB (Arduino Nano 33 BLE) or USB C (Black Pill)
    • v3.1: USB C
  • MCU:
    • v3.0: nRF52840 (Arduino Nano 33 BLE) or STM32F411CE (Black Pill)
    • v3.1: Raspberry Pi RP2040
  • DIN MIDI: Yes
  • LED indicators: Yes
  • Digital inputs: 128
  • Digital outputs: 64
  • Analog inputs: 64
  • Schematic:

Connections

Buttons

Buttons are connected to pin headers marked IH1-IH16 on board.

Button # Pin 1 Pin 2
0 C0 R0
1 C1 R0
2 C2 R0
3 C3 R0
4 C4 R0
5 C5 R0
6 C6 R0
7 C7 R0
8 C0 R1
9 C1 R1
10 C2 R1
11 C3 R1
12 C4 R1
13 C5 R1
14 C6 R1
15 C7 R1
16 C0 R2
17 C1 R2
18 C2 R2
19 C3 R2
20 C4 R2
21 C5 R2
22 C6 R2
23 C7 R2
24 C0 R3
25 C1 R3
26 C2 R3
27 C3 R3
28 C4 R3
29 C5 R3
30 C6 R3
31 C7 R3
32 C0 R4
33 C1 R4
34 C2 R4
35 C3 R4
36 C4 R4
37 C5 R4
38 C6 R4
39 C7 R4
40 C0 R5
41 C1 R5
42 C2 R5
43 C3 R5
44 C4 R5
45 C5 R5
46 C6 R5
47 C7 R5
48 C0 R6
49 C1 R6
50 C2 R6
51 C3 R6
52 C4 R6
53 C5 R6
54 C6 R6
55 C7 R6
56 C0 R7
57 C1 R7
58 C2 R7
59 C3 R7
60 C4 R7
61 C5 R7
62 C6 R7
63 C7 R7
64 C0 R8
64 C1 R8
66 C2 R8
67 C3 R8
68 C4 R8
69 C5 R8
70 C6 R8
71 C7 R8
72 C0 R9
73 C1 R9
74 C2 R9
75 C3 R9
76 C4 R9
77 C5 R9
78 C6 R9
79 C7 R9
80 C0 R10
81 C1 R10
82 C2 R10
83 C3 R10
84 C4 R10
85 C5 R10
86 C6 R10
87 C7 R10
88 C0 R11
89 C1 R11
90 C2 R11
91 C3 R11
92 C4 R11
93 C5 R11
94 C6 R11
95 C7 R11
96 C0 R12
97 C1 R12
98 C2 R12
99 C3 R12
100 C4 R12
101 C5 R12
102 C6 R12
103 C7 R12
104 C0 R13
105 C1 R13
106 C2 R13
107 C3 R13
108 C4 R13
109 C5 R13
110 C6 R13
111 C7 R13
112 C0 R14
113 C1 R14
114 C2 R14
115 C3 R14
116 C4 R14
117 C5 R14
118 C6 R14
119 C7 R14
120 C0 R15
121 C1 R15
122 C2 R15
123 C3 R15
124 C4 R15
125 C5 R15
126 C6 R15
127 C7 R15

Analog inputs

Button # Pin 1 Pin 1 Pin 2
128 Any AH left pin with 1k resistor AH1-0 middle pin Any AH right pin
129 Any AH left pin with 1k resistor AH1-1 middle pin Any AH right pin
130 Any AH left pin with 1k resistor AH1-2 middle pin Any AH right pin
131 Any AH left pin with 1k resistor AH1-3 middle pin Any AH right pin
131 Any AH left pin with 1k resistor AH1-4 middle pin Any AH right pin
133 Any AH left pin with 1k resistor AH1-5 middle pin Any AH right pin
134 Any AH left pin with 1k resistor AH1-6 middle pin Any AH right pin
135 Any AH left pin with 1k resistor AH1-7 middle pin Any AH right pin
136 Any AH left pin with 1k resistor AH2-0 middle pin Any AH right pin
137 Any AH left pin with 1k resistor AH2-1 middle pin Any AH right pin
138 Any AH left pin with 1k resistor AH2-2 middle pin Any AH right pin
139 Any AH left pin with 1k resistor AH2-3 middle pin Any AH right pin
140 Any AH left pin with 1k resistor AH2-4 middle pin Any AH right pin
141 Any AH left pin with 1k resistor AH2-5 middle pin Any AH right pin
142 Any AH left pin with 1k resistor AH2-6 middle pin Any AH right pin
143 Any AH left pin with 1k resistor AH2-7 middle pin Any AH right pin
144 Any AH left pin with 1k resistor AH3-0 middle pin Any AH right pin
145 Any AH left pin with 1k resistor AH3-1 middle pin Any AH right pin
146 Any AH left pin with 1k resistor AH3-2 middle pin Any AH right pin
147 Any AH left pin with 1k resistor AH3-3 middle pin Any AH right pin
148 Any AH left pin with 1k resistor AH3-4 middle pin Any AH right pin
149 Any AH left pin with 1k resistor AH3-5 middle pin Any AH right pin
150 Any AH left pin with 1k resistor AH3-6 middle pin Any AH right pin
151 Any AH left pin with 1k resistor AH3-7 middle pin Any AH right pin
152 Any AH left pin with 1k resistor AH4-0 middle pin Any AH right pin
153 Any AH left pin with 1k resistor AH4-1 middle pin Any AH right pin
154 Any AH left pin with 1k resistor AH4-2 middle pin Any AH right pin
155 Any AH left pin with 1k resistor AH4-3 middle pin Any AH right pin
156 Any AH left pin with 1k resistor AH4-4 middle pin Any AH right pin
157 Any AH left pin with 1k resistor AH4-5 middle pin Any AH right pin
158 Any AH left pin with 1k resistor AH4-6 middle pin Any AH right pin
159 Any AH left pin with 1k resistor AH4-7 middle pin Any AH right pin
160 Any AH left pin with 1k resistor AH5-0 middle pin Any AH right pin
161 Any AH left pin with 1k resistor AH5-1 middle pin Any AH right pin
162 Any AH left pin with 1k resistor AH5-2 middle pin Any AH right pin
163 Any AH left pin with 1k resistor AH5-3 middle pin Any AH right pin
164 Any AH left pin with 1k resistor AH5-4 middle pin Any AH right pin
165 Any AH left pin with 1k resistor AH5-5 middle pin Any AH right pin
166 Any AH left pin with 1k resistor AH5-6 middle pin Any AH right pin
167 Any AH left pin with 1k resistor AH5-7 middle pin Any AH right pin
168 Any AH left pin with 1k resistor AH6-0 middle pin Any AH right pin
169 Any AH left pin with 1k resistor AH6-1 middle pin Any AH right pin
170 Any AH left pin with 1k resistor AH6-2 middle pin Any AH right pin
171 Any AH left pin with 1k resistor AH6-3 middle pin Any AH right pin
172 Any AH left pin with 1k resistor AH6-4 middle pin Any AH right pin
173 Any AH left pin with 1k resistor AH6-5 middle pin Any AH right pin
174 Any AH left pin with 1k resistor AH6-6 middle pin Any AH right pin
175 Any AH left pin with 1k resistor AH6-7 middle pin Any AH right pin
176 Any AH left pin with 1k resistor AH7-0 middle pin Any AH right pin
177 Any AH left pin with 1k resistor AH7-1 middle pin Any AH right pin
178 Any AH left pin with 1k resistor AH7-2 middle pin Any AH right pin
179 Any AH left pin with 1k resistor AH7-3 middle pin Any AH right pin
180 Any AH left pin with 1k resistor AH7-4 middle pin Any AH right pin
181 Any AH left pin with 1k resistor AH7-5 middle pin Any AH right pin
182 Any AH left pin with 1k resistor AH7-6 middle pin Any AH right pin
183 Any AH left pin with 1k resistor AH7-7 middle pin Any AH right pin
184 Any AH left pin with 1k resistor AH8-0 middle pin Any AH right pin
185 Any AH left pin with 1k resistor AH8-1 middle pin Any AH right pin
186 Any AH left pin with 1k resistor AH8-2 middle pin Any AH right pin
187 Any AH left pin with 1k resistor AH8-3 middle pin Any AH right pin
188 Any AH left pin with 1k resistor AH8-4 middle pin Any AH right pin
189 Any AH left pin with 1k resistor AH8-5 middle pin Any AH right pin
190 Any AH left pin with 1k resistor AH8-6 middle pin Any AH right pin
191 Any AH left pin with 1k resistor AH8-7 middle pin Any AH right pin

Rotary encoders

Encoders are connected to same pin headers as buttons (IH1-IH16).

Encoder # Pin 1 Pin 2 Pin 3
0 R0 C0 R1
1 R0 C1 R1
2 R0 C2 R1
3 R0 C3 R1
4 R0 C4 R1
5 R0 C5 R1
6 R0 C6 R1
7 R0 C7 R1
8 R2 C0 R3
9 R2 C1 R3
10 R2 C2 R3
11 R2 C3 R3
12 R2 C4 R3
13 R2 C5 R3
14 R2 C6 R3
15 R2 C7 R3
16 R4 C0 R5
17 R4 C1 R5
18 R4 C2 R5
19 R4 C3 R5
20 R4 C4 R5
21 R4 C5 R5
22 R4 C6 R5
23 R4 C7 R5
24 R6 C0 R7
25 R6 C1 R7
26 R6 C2 R7
27 R6 C3 R7
28 R6 C4 R7
29 R6 C5 R7
30 R6 C6 R7
31 R6 C7 R7
31 R8 C0 R9
33 R8 C1 R9
34 R8 C2 R9
35 R8 C3 R9
36 R8 C4 R9
37 R8 C5 R9
38 R8 C6 R9
39 R8 C7 R9
40 R10 C0 R11
41 R10 C1 R11
42 R10 C2 R11
43 R10 C3 R11
44 R10 C4 R11
45 R10 C5 R11
46 R10 C6 R11
47 R10 C7 R11
48 R12 C0 R13
49 R12 C1 R13
50 R12 C2 R13
51 R12 C3 R13
52 R12 C4 R13
53 R12 C5 R13
54 R12 C6 R13
55 R12 C7 R13
56 R14 C0 R15
57 R14 C1 R15
58 R14 C2 R15
59 R14 C3 R15
60 R14 C4 R15
61 R14 C5 R15
62 R14 C6 R15
63 R14 C7 R15

Potentiometers

Potentiometer # Pin 1 (GND) Pin 2 (signal) Pin 3 (Vcc)
0 Any AH left pin AH1-0 middle pin Any AH right pin
1 Any AH left pin AH1-1 middle pin Any AH right pin
2 Any AH left pin AH1-2 middle pin Any AH right pin
3 Any AH left pin AH1-3 middle pin Any AH right pin
4 Any AH left pin AH1-4 middle pin Any AH right pin
5 Any AH left pin AH1-5 middle pin Any AH right pin
6 Any AH left pin AH1-6 middle pin Any AH right pin
7 Any AH left pin AH1-7 middle pin Any AH right pin
8 Any AH left pin AH2-0 middle pin Any AH right pin
9 Any AH left pin AH2-1 middle pin Any AH right pin
10 Any AH left pin AH2-2 middle pin Any AH right pin
11 Any AH left pin AH2-3 middle pin Any AH right pin
12 Any AH left pin AH2-4 middle pin Any AH right pin
13 Any AH left pin AH2-5 middle pin Any AH right pin
14 Any AH left pin AH2-6 middle pin Any AH right pin
15 Any AH left pin AH2-7 middle pin Any AH right pin
16 Any AH left pin AH3-0 middle pin Any AH right pin
17 Any AH left pin AH3-1 middle pin Any AH right pin
18 Any AH left pin AH3-2 middle pin Any AH right pin
19 Any AH left pin AH3-3 middle pin Any AH right pin
20 Any AH left pin AH3-4 middle pin Any AH right pin
21 Any AH left pin AH3-5 middle pin Any AH right pin
22 Any AH left pin AH3-6 middle pin Any AH right pin
23 Any AH left pin AH3-7 middle pin Any AH right pin
24 Any AH left pin AH4-0 middle pin Any AH right pin
25 Any AH left pin AH4-1 middle pin Any AH right pin
26 Any AH left pin AH4-2 middle pin Any AH right pin
27 Any AH left pin AH4-3 middle pin Any AH right pin
28 Any AH left pin AH4-4 middle pin Any AH right pin
29 Any AH left pin AH4-5 middle pin Any AH right pin
30 Any AH left pin AH4-6 middle pin Any AH right pin
31 Any AH left pin AH4-7 middle pin Any AH right pin
32 Any AH left pin AH5-0 middle pin Any AH right pin
33 Any AH left pin AH5-1 middle pin Any AH right pin
34 Any AH left pin AH5-2 middle pin Any AH right pin
35 Any AH left pin AH5-3 middle pin Any AH right pin
36 Any AH left pin AH5-4 middle pin Any AH right pin
37 Any AH left pin AH5-5 middle pin Any AH right pin
38 Any AH left pin AH5-6 middle pin Any AH right pin
39 Any AH left pin AH5-7 middle pin Any AH right pin
40 Any AH left pin AH6-0 middle pin Any AH right pin
41 Any AH left pin AH6-1 middle pin Any AH right pin
42 Any AH left pin AH6-2 middle pin Any AH right pin
43 Any AH left pin AH6-3 middle pin Any AH right pin
44 Any AH left pin AH6-4 middle pin Any AH right pin
45 Any AH left pin AH6-5 middle pin Any AH right pin
46 Any AH left pin AH6-6 middle pin Any AH right pin
47 Any AH left pin AH6-7 middle pin Any AH right pin
48 Any AH left pin AH7-0 middle pin Any AH right pin
49 Any AH left pin AH7-1 middle pin Any AH right pin
50 Any AH left pin AH7-2 middle pin Any AH right pin
51 Any AH left pin AH7-3 middle pin Any AH right pin
52 Any AH left pin AH7-4 middle pin Any AH right pin
53 Any AH left pin AH7-5 middle pin Any AH right pin
54 Any AH left pin AH7-6 middle pin Any AH right pin
55 Any AH left pin AH7-7 middle pin Any AH right pin
56 Any AH left pin AH8-0 middle pin Any AH right pin
57 Any AH left pin AH8-1 middle pin Any AH right pin
58 Any AH left pin AH8-2 middle pin Any AH right pin
59 Any AH left pin AH8-3 middle pin Any AH right pin
60 Any AH left pin AH8-4 middle pin Any AH right pin
61 Any AH left pin AH8-5 middle pin Any AH right pin
62 Any AH left pin AH8-6 middle pin Any AH right pin
63 Any AH left pin AH8-7 middle pin Any AH right pin

FSRs

FSR # Pin 1 Pin 1 Pin 2
0 Any AH left pin with 1k resistor AH1-0 middle pin Any AH right pin
1 Any AH left pin with 1k resistor AH1-1 middle pin Any AH right pin
2 Any AH left pin with 1k resistor AH1-2 middle pin Any AH right pin
3 Any AH left pin with 1k resistor AH1-3 middle pin Any AH right pin
4 Any AH left pin with 1k resistor AH1-4 middle pin Any AH right pin
5 Any AH left pin with 1k resistor AH1-5 middle pin Any AH right pin
6 Any AH left pin with 1k resistor AH1-6 middle pin Any AH right pin
7 Any AH left pin with 1k resistor AH1-7 middle pin Any AH right pin
8 Any AH left pin with 1k resistor AH2-0 middle pin Any AH right pin
9 Any AH left pin with 1k resistor AH2-1 middle pin Any AH right pin
10 Any AH left pin with 1k resistor AH2-2 middle pin Any AH right pin
11 Any AH left pin with 1k resistor AH2-3 middle pin Any AH right pin
12 Any AH left pin with 1k resistor AH2-4 middle pin Any AH right pin
13 Any AH left pin with 1k resistor AH2-5 middle pin Any AH right pin
14 Any AH left pin with 1k resistor AH2-6 middle pin Any AH right pin
15 Any AH left pin with 1k resistor AH2-7 middle pin Any AH right pin
16 Any AH left pin with 1k resistor AH3-0 middle pin Any AH right pin
17 Any AH left pin with 1k resistor AH3-1 middle pin Any AH right pin
18 Any AH left pin with 1k resistor AH3-2 middle pin Any AH right pin
19 Any AH left pin with 1k resistor AH3-3 middle pin Any AH right pin
20 Any AH left pin with 1k resistor AH3-4 middle pin Any AH right pin
21 Any AH left pin with 1k resistor AH3-5 middle pin Any AH right pin
22 Any AH left pin with 1k resistor AH3-6 middle pin Any AH right pin
23 Any AH left pin with 1k resistor AH3-7 middle pin Any AH right pin
24 Any AH left pin with 1k resistor AH4-0 middle pin Any AH right pin
25 Any AH left pin with 1k resistor AH4-1 middle pin Any AH right pin
26 Any AH left pin with 1k resistor AH4-2 middle pin Any AH right pin
27 Any AH left pin with 1k resistor AH4-3 middle pin Any AH right pin
28 Any AH left pin with 1k resistor AH4-4 middle pin Any AH right pin
29 Any AH left pin with 1k resistor AH4-5 middle pin Any AH right pin
30 Any AH left pin with 1k resistor AH4-6 middle pin Any AH right pin
31 Any AH left pin with 1k resistor AH4-7 middle pin Any AH right pin
32 Any AH left pin with 1k resistor AH5-0 middle pin Any AH right pin
33 Any AH left pin with 1k resistor AH5-1 middle pin Any AH right pin
34 Any AH left pin with 1k resistor AH5-2 middle pin Any AH right pin
35 Any AH left pin with 1k resistor AH5-3 middle pin Any AH right pin
36 Any AH left pin with 1k resistor AH5-4 middle pin Any AH right pin
37 Any AH left pin with 1k resistor AH5-5 middle pin Any AH right pin
38 Any AH left pin with 1k resistor AH5-6 middle pin Any AH right pin
39 Any AH left pin with 1k resistor AH5-7 middle pin Any AH right pin
40 Any AH left pin with 1k resistor AH6-0 middle pin Any AH right pin
41 Any AH left pin with 1k resistor AH6-1 middle pin Any AH right pin
42 Any AH left pin with 1k resistor AH6-2 middle pin Any AH right pin
43 Any AH left pin with 1k resistor AH6-3 middle pin Any AH right pin
44 Any AH left pin with 1k resistor AH6-4 middle pin Any AH right pin
45 Any AH left pin with 1k resistor AH6-5 middle pin Any AH right pin
46 Any AH left pin with 1k resistor AH6-6 middle pin Any AH right pin
47 Any AH left pin with 1k resistor AH6-7 middle pin Any AH right pin
48 Any AH left pin with 1k resistor AH7-0 middle pin Any AH right pin
49 Any AH left pin with 1k resistor AH7-1 middle pin Any AH right pin
50 Any AH left pin with 1k resistor AH7-2 middle pin Any AH right pin
51 Any AH left pin with 1k resistor AH7-3 middle pin Any AH right pin
52 Any AH left pin with 1k resistor AH7-4 middle pin Any AH right pin
53 Any AH left pin with 1k resistor AH7-5 middle pin Any AH right pin
54 Any AH left pin with 1k resistor AH7-6 middle pin Any AH right pin
55 Any AH left pin with 1k resistor AH7-7 middle pin Any AH right pin
56 Any AH left pin with 1k resistor AH8-0 middle pin Any AH right pin
57 Any AH left pin with 1k resistor AH8-1 middle pin Any AH right pin
58 Any AH left pin with 1k resistor AH8-2 middle pin Any AH right pin
59 Any AH left pin with 1k resistor AH8-3 middle pin Any AH right pin
60 Any AH left pin with 1k resistor AH8-4 middle pin Any AH right pin
61 Any AH left pin with 1k resistor AH8-5 middle pin Any AH right pin
62 Any AH left pin with 1k resistor AH8-6 middle pin Any AH right pin
63 Any AH left pin with 1k resistor AH8-7 middle pin Any AH right pin

Single-color LEDs

LEDs are connected to pin headers marked OH1-OH8 on board.

Note 1: This board already contains resistors for LEDs, so external ones aren't required.

Note 2: This board uses MAX7219 LED driver chip which doesn't support individual LED brightness control.

LED # Anode Cathode
0 OH1-0+ OH1-0-
0 OH1-1+ OH1-1-
0 OH1-2+ OH1-2-
0 OH1-3+ OH1-3-
0 OH1-4+ OH1-4-
0 OH1-5+ OH1-5-
0 OH1-6+ OH1-6-
0 OH1-7+ OH1-7-
0 OH2-0+ OH2-0-
0 OH2-1+ OH2-1-
0 OH2-2+ OH2-2-
0 OH2-3+ OH2-3-
0 OH2-4+ OH2-4-
0 OH2-5+ OH2-5-
0 OH2-6+ OH2-6-
0 OH2-7+ OH2-7-
0 OH3-0+ OH3-0-
0 OH3-1+ OH3-1-
0 OH3-2+ OH3-2-
0 OH3-3+ OH3-3-
0 OH3-4+ OH3-4-
0 OH3-5+ OH3-5-
0 OH3-6+ OH3-6-
0 OH3-7+ OH3-7-
0 OH4-0+ OH4-0-
0 OH4-1+ OH4-1-
0 OH4-2+ OH4-2-
0 OH4-3+ OH4-3-
0 OH4-4+ OH4-4-
0 OH4-5+ OH4-5-
0 OH4-6+ OH4-6-
0 OH4-7+ OH4-7-
0 OH5-0+ OH5-0-
0 OH5-1+ OH5-1-
0 OH5-2+ OH5-2-
0 OH5-3+ OH5-3-
0 OH5-4+ OH5-4-
0 OH5-5+ OH5-5-
0 OH5-6+ OH5-6-
0 OH5-7+ OH5-7-
0 OH6-0+ OH6-0-
0 OH6-1+ OH6-1-
0 OH6-2+ OH6-2-
0 OH6-3+ OH6-3-
0 OH6-4+ OH6-4-
0 OH6-5+ OH6-5-
0 OH6-6+ OH6-6-
0 OH6-7+ OH6-7-
0 OH7-0+ OH7-0-
0 OH7-1+ OH7-1-
0 OH7-2+ OH7-2-
0 OH7-3+ OH7-3-
0 OH7-4+ OH7-4-
0 OH7-5+ OH7-5-
0 OH7-6+ OH7-6-
0 OH7-7+ OH7-7-
0 OH8-0+ OH8-0-
0 OH8-1+ OH8-1-
0 OH8-2+ OH8-2-
0 OH8-3+ OH8-3-
0 OH8-4+ OH8-4-
0 OH8-5+ OH8-5-
0 OH8-6+ OH8-6-
0 OH8-7+ OH8-7-

RGB LEDs

RGB LEDs are connected to pin headers marked OH1-OH8 on board.

Note 1: This board already contains resistors for LEDs, so external ones aren't required. Note 2: This board uses MAX7219 LED driver chip which doesn't support individual LED brightness control.

RGB LED # Anode (Red) Anode (Green) Anode (Blue) Cathode
0 OH1-0+ OH1-1+ OH1-2+ OH1 any -
1 OH2-0+ OH2-1+ OH2-2+ OH2 any -
2 OH3-0+ OH3-1+ OH3-2+ OH3 any -
3 OH4-0+ OH4-1+ OH4-2+ OH4 any -
4 OH5-0+ OH5-1+ OH5-2+ OH5 any -
5 OH6-0+ OH6-1+ OH6-2+ OH6 any -
6 OH7-0+ OH7-1+ OH7-2+ OH7 any -
7 OH8-0+ OH8-1+ OH8-2+ OH8 any -
8 OH1-3+ OH1-4+ OH1-5+ OH1 any -
9 OH2-3+ OH2-4+ OH2-5+ OH2 any -
10 OH3-3+ OH3-4+ OH3-5+ OH3 any -
11 OH4-3+ OH4-4+ OH4-5+ OH4 any -
12 OH5-3+ OH5-4+ OH5-5+ OH5 any -
13 OH6-3+ OH6-4+ OH6-5+ OH6 any -
14 OH7-3+ OH7-4+ OH7-5+ OH7 any -
15 OH8-3+ OH8-4+ OH8-5+ OH8 any -

Displays

Note: On v3.0 boards, I2C connector is mislabeled. Label SCL is GND, label SDA is SCL and label GND is SDA. Label +3v3 is correct.

Signal Display Pin
Vcc Vcc I2C connector pin +3V3
GND GND I2C connector pin GND
SCL SCL I2C connector pin SCL
SDA SDA I2C connector pin SDA

DIN MIDI

Board contains two DIN MIDI connectors labeled input and output.

Touchscreen

Screen Pin
Vcc N/A (use external supply)
GND Touchscreen connector pin GND
Rx Touchscreen connector pin Rx
Tx Touchscreen connector pin Tx
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