06

6.0

Pin Details

Table 1 – Module pinout

† The pins on the RTC power domain can be used during deep sleep, specifically GPIO pins will maintain their state while in deep sleep.

* ADC2 is currently not supported in the micropython firmware

Module

Pin

ESP32

GPIO

Pin

Name

Default Function

ADC

PWM

RTC†

Notes

45

–

–

LoRa antenna

868MHz or 915MHz, 50 Ohm impedance

required

46

–

–

Ground

–

36

LoRa radio interrupt

–

35

LoRa radio chip select

6.1

Remapping Pins

The ESP32 features comprehensive pin remapping

functionality. This allows peripherals to be mapped

onto almost any available GPIO pins. The above table

merely shows the default assignments. For example, the

default mapping has the SPI and I2C clocks overlapping,

meaning both cannot be used simultaneously without

remapping one to a different pin. For a detailed guide of

what peripheral can be assigned to what pins please read

“Appendix A – ESP32 Pin Lists” of the ESP32 datasheet.