Datasheet

Name
Power
GND
Control
Arduino
Port
ADC
Ext. Interupt
Serial
SERCOM
Timer
PTC
Misc
LiPo
CHG
GND GND
MISO
MOSI
SCK
A4 A4 PA05 AIN5 EXTIN5
SER0:1 TC0:1 PTC:Y3
A3 A3 PA04 AIN4 EXTINT4
SER0:0 TCC0:0 PTC:Y2
A2 A2 PB09 AIN3 EXTINT9
SER4:1 TC4:1 PTC:Y15
A1 A1 PB08 AIN2 EXTINT8
SER4:0 TC4:0 PTC:Y14
A0 A0 PA02 AIN0 EXTINT2
PTC:Y0 DAC
ANT
Switch
SWITCH
RAW
RAW: 3.5V-6.0V
3V3
3.3V Output
GNDGND
D9D9 ~PA07AIN7EXTINT7
SER0:3
TCC1:1/0:3
PTC:Y5
I2S/SD[0]
D4D4 ~PA08AIN16NMISER0:0/2:0*TCC0:0/1:2
PTC:X0
I2S/SD[1]
D3D3 ~PA09AIN17EXTINT9SER0:1/2:1*TCC0:1/1:3
PTC:X1
I2S/MCK[0]
D2D2PA14EXTINT14
SER2:2/4:2*TC3:0/TCC0:4XIN
D5D5 ~PA15EXTINT15
SER2:3/4:3TC3:1/TCC0:5XOUT
/RSTRESET
1/TXD1PA10AIN18
EXTINT10TX0
SER0:2/2:2
TCC1:0/0:2PTC:X2
I2S/SCK[0]
0/RXD0PA11AIN19
EXTINT11RXI
SER0:3/2:3
TCC1:1/0:3PTC:X3
I2S/FS[0]
SparkFun Pro RF-LoRa 915MHz(SamD21)
Power
RAW: 3.5V-6.0V
VCC: 600mA @3.3V
Each pin is 3.3V tolerant and can source/sink no more than 7mA/10mA
Each cluster of I/O pins can source 46mA and sink 65mA:
Cluster 1: D2, D5, D13, USB D-, USB D+, SCL, SDA, MISO, MOSI, SCK.
SamD21G18
VCC:1.62-3.63V
Arm Cortex-M0 + (32-bit)
Flash Memory: 256KB
SRAM: 32KB
ADC: 12-bit
48MHz
RTC
USB 2.1 with USB host capability
LEDs
Power: Red
D13 (PIN_LED_13): Blue
TX (PIN_LED_TXL): Green
RX (PIN_LED_RXL): Yellow
Serial
USB: SerialUSB
Hardware Serial: Serial1
Micro B USB
Reset Button
CHG LED : Yellow
8-bit PWM pins marked with ~
Qwiic Enabled
MISO
MOSI
SCK
ANTENNA
Switch
I²C
Key
(WRL-14916)
Cluster 2: A1, A2, A3, A4, D9.
Cluster 3: A0, A5, RX_LED.
Cluster 3: TX_LED.