Feather M0 Radio With Rfm69 Packet Radio

AdafruitATSAMD21G18

A microcontroller board with an RFM69HCW radio module for long-range packet transmission.

In stock

Specifications

Operating Voltage: 3.3V logic/power, 500mA peak current output from the 3.3V regulator, 4.2/3.7V LiPo battery input via JST jack, 5V USB input via micro USB jack if connected.
Logic Level: 3.3V
Clock Speed: 48MHz
Flash: 256K KB
Ram: 32K KB
Gpio Count: 20
Dimensions: 2.0" x 0.9" x 0.3" inches
Connectivity: USB native support, hardware Serial, hardware I2C, hardware SPI
Usb: micro USB jack for power and programming

Pin	Name	Functions	Notes
BAT	BAT	POWER	Positive voltage to/from the JST jack for the optional LiPo battery
USB	USB	POWER	Positive voltage to/from the micro USB jack if connected
EN	EN	POWER	3.3V regulator's enable pin, pulled up by default
3V	3V	POWER	Output from the 3.3V regulator, can supply 500mA peak current
0 / RX	RX	GPIOUART	Receive (input) pin for Serial1, also analog input A7
1 / TX	TX	GPIOUART	Transmit (output) pin for Serial1, also analog input A6
20 / SDA	SDA	I2C	I2C data pin, no pull-up by default
21 / SCL	SCL	I2C	I2C clock pin, no pull-up by default
5	GPIO 5	GPIO
6	GPIO 6	GPIO
9	GPIO 9	PWMADC	Analog input A7, connected to a voltage divider for the LiPo battery
10	GPIO 10	GPIO
11	GPIO 11	GPIO
12	GPIO 12	GPIO
13	GPIO 13	PWMGND	Connected to the red LED next to the USB jack
A0	A0	ADCPWM	Analog output due to having a DAC, true analog output from 0 to 3.3V
A1	A1	GPIOADC
A2	A2	GPIOADC
A3	A3	GPIOADC
A4	A4	GPIOADC
A5	A5	GPIOADC
SCK/MOSI/MISO (24/23/22)	SPI	SPI	Hardware SPI pins, can be used as GPIO but recommend keeping them free for hardware SPI connections

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ATSAMD21G18

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