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Pinout requirements (existing and new layout general purpose low power PCB design)

Pin Number (header)

ESP function

ESP32 v1 dev board reference (all on same row)

Raw ESP32 header

1

3V3

1

3V3

2

GND

2

GND

3

D4D2

45

IO2

4

RX2

6

IO16

5

TX2

7

IO17

6

D5

8

IO5

7

D18

9

IO18

8

D23

15

IO23

Photo of ESP32 v1 dev board interconnect

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