Logical pinout · physical placement not verified

VINheader / STEMMA QT
Power input to onboard regulator; power with same voltage as microcontroller logic
Type · PowerVoltage · 3-5V input
3Voheader
3.3V output from onboard regulator
Type · PowerVoltage · 3.3V output up to 100mA
GNDheader / STEMMA QT
Common ground for power and logic
Type · GroundVoltage · 0V
SDAheader / STEMMA QT
I2C data line
Type · I2CVoltage · 3-5V logic
SCLheader / STEMMA QT
I2C clock line
Type · I2CVoltage · 3-5V logic
RSTheader
Module reset signal, active low
Type · ControlVoltage · logic level
SETheader
Set/sleep pin; high for working status, low for sleep mode
Type · ControlVoltage · logic level

Pin	Position	Type	Function	Voltage
VIN	header / STEMMA QT	Power	Power input to onboard regulator; power with same voltage as microcontroller logic	3-5V input
3Vo	header	Power	3.3V output from onboard regulator	3.3V output up to 100mA
GND	header / STEMMA QT	Ground	Common ground for power and logic	0V
SDA	header / STEMMA QT	I2C	I2C data line	3-5V logic
SCL	header / STEMMA QT	I2C	I2C clock line	3-5V logic
RST	header	Control	Module reset signal, active low	logic level
SET	header	Control	Set/sleep pin; high for working status, low for sleep mode	logic level

Logical pinout · physical placement not verified

Pin details

7 connections

VIN
Power input to onboard regulator; power with same voltage as microcontroller logic
PowerVoltage · 3-5V input
header / STEMMA QT
3Vo
3.3V output from onboard regulator
PowerVoltage · 3.3V output up to 100mA
header
GND
Common ground for power and logic
GroundVoltage · 0V
header / STEMMA QT
SDA
I2C data line
I2CVoltage · 3-5V logic
header / STEMMA QT
SCL
I2C clock line
I2CVoltage · 3-5V logic
header / STEMMA QT
RST
Module reset signal, active low
ControlVoltage · logic level
header
SET
Set/sleep pin; high for working status, low for sleep mode
ControlVoltage · logic level
header

Start wiring

I2C · Analog · UART · 3.3 – 5 V · Breakout

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Pinout