0 Digital Boot Button
1 Digital Connector P1 & USB Chip - TX
2 Digital Display - TFT_RS / TFT_DC
3 Digital Connector P1 & USB Chip - RX
4 Digital RGB LED - Red
5 Digital SD Card - TF_CS [VSPI]
6 Digital Not Connected
7 Digital Not Connected
8 Digital Not Connected
9 Digital Not Connected
10 Digital Not Connected
11 Digital Not Connected
12 Digital Display - TFT_SDO / TFT_MISO [HSPI]
13 Digital Display - TFT_SDI / TFT_MOSI [HSPI]
14 Digital Display - TFT_SCK [HSPI]
15 Digital Display - TFT_CS [HSPI]
16 Digital RGB LED - Green
17 Digital RGB LED - Blue
18 Digital SD Card - SCK [VSPI]
19 Digital SD Card - MISO [VSPI]
21 Digital Touch, Connector P3 & CN1 - CTP_INT / I2C SDA
22 Digital Connector P3 & CN1 - I2C SCL
23 Digital SD Card - MOSI [VSPI]
25 Digital Touch CST920 - CTP_RST
26 Analog Speaker - !!!Speaker ONLY! Connected to Amp!!!
27 Digital Display - TFT_BL (BackLight)
32 Digital Touch CST820 - CTP_SCL
33 Digital Touch CST820 - CTP_SDA
34 Analog LDR Light Sensor - !!!Input ONLY!!!
35 Digital P3 Connector - !!!Input ONLY w/ NO pull-ups!!!
36 Digital Not Connected
39 Digital Not Connected
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Pin Reference
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IO Pins
It use