Adafruit FONA 3G Cellular Breakout - American version [Without Free Ting Sim Card]

Name: Adafruit FONA 3G Cellular Breakout - American version [Without Free Ting Sim Card]
Brand: Adafruit
SKU: 2687

STEP STL STL

3G cellular modem breakout for US bands with GSM backwards-compatibility, designed for data and voice projects requiring cellular connectivity.

Logical pinout · physical placement not verified

Vio
Type · PowerVoltage · 3-5V
Key
Type · ControlVoltage · pulse to GND
5V
Type · PowerVoltage · 5V
PSNS
Type · UnknownVoltage · Vio logic
Reset
Type · ControlVoltage · active low
RXTX
Type · UARTVoltage · Vio logic
RTSinCTSoutDTRRI
Type · ControlVoltage · Vio logic
SPK+-
Type · GPIOVoltage · speaker drive
MIC+-
Type · GPIOVoltage · 2V mic bias

Pin	Type	Voltage
Vio	Power	3-5V
Key	Control	pulse to GND
5V	Power	5V
PSNS	Unknown	Vio logic
Reset	Control	active low
RXTX	UART	Vio logic
RTSinCTSoutDTRRI	Control	Vio logic
SPK+-	GPIO	speaker drive
MIC+-	GPIO	2V mic bias

Logical pinout · physical placement not verified

Pin details

9 connections

Vio
PowerVoltage · 3-5V
Key
ControlVoltage · pulse to GND
5V
PowerVoltage · 5V
PSNS
UnknownVoltage · Vio logic
Reset
ControlVoltage · active low
RXTX
UARTVoltage · Vio logic
RTSinCTSoutDTRRI
ControlVoltage · Vio logic
SPK+-
GPIOVoltage · speaker drive
MIC+-
GPIOVoltage · 2V mic bias

Start wiring

UART · USB · Breakout

Verify supply voltage and logic levels before powering up.

Module pins: 5V, RX/TX. Schematik maps them to your board in the app.

Cellular

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