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SODAQ SARA AFF (Arduino Form Factor)

screenshot

Overview

The SODAQ SARA is a developers board in the standard Arduino formfactor. It comes with a powerful 32 bits microcontroller, two grove sockets to easily connect any sensor, two JST connectors to connect your battery and solar panel, onboard charge circuit, accelerometer, GPS and NB-IoT or Cat M1.

Version Technology Shop
N211 NB-IoT SODAQ SARA AFF N211
R410 NB-IoT, LTE-M SODAQ SARA AFF R410
R412 NB-IoT, LTE-M, 2G SODAQ SARA AFF R412

Getting Started

Follow the getting started guide to verify you use the correct URL and update your boardfiles to the latest version.

Features

Microcontroller ATSAMD21J18, 32-Bit ARM Cortex M0+
Compatibility Arduino M0 Compatible
Size Arduino Uno formfactor, 53.4 x 68.6 mm
Operating Voltage 3.3V
I/O Pins 23
Analog Output Pin 10-bit DAC
External Interrupts Available on all pins
DC Current per I/O pin 7 mA
Flash Memory 256 KB
SRAM 32KB
EEPROM Up to 16KB by emulation
Clock Speed 48 MHz
Power 5V USB power and/or 3.7 LiPo battery
Charging Solar charge controller, up to 500mA charge current
LED RGB LED, LED on D13
NB-IoT uBlox SARA N2XX, R4XX Series
GPS uBlox SAM M8Q
Accelerometer/Magneto LSM303AGR
USB MicroUSB Port

Pinout


Pin definitions

Some things like the onboard LED and the RGB LED are used on multiple boards. To make it more easy you can use the definition name.

Example: pinMode(13, OUTPUT) and pinMode(LED_BUILTIN, OUTPUT) will do the same.

Pin description Pin number Definition
Red LED D16 LED_RED
Green LED D17 LED_GREEN
Blue LED D18 LED_BLUE
Onboard LED D13 LED_BUILTIN
GPS Enable D26 GPS_ENABLE
Power Pin SARA D27 SARA_ENABLE
Enable Pin SARA D29 SARA_TX_ENABLE
Reset Pin SARA D28 SARA_RESET
GPS Timepulse D25 GPS_TIMEPULSE
MISO (SPI) D12 MISO
SS (SPI) D10 SS
MOSI (SPI) D11 MOSI
SCK (SPI) D13 SCK
Accelerometer Interrupt 1 D19 ACCEL_INT1
Accelerometer Interrupt 2 D20 ACCEL_INT2
Magnetometer Interrupt D21 MAG_INT
USB Detect D22 USB_DETECT
Status pin Sara D23 SARA_STATUS
Charge Status D24 CHG_STAT

Schematics

SODAQ SARA AFF R3 schematic
SODAQ SARA AFF R2 schematic
SODAQ SARA AFF R1 schematic

Firmware Upgrade

R4

With the command ATI9 you can check your firmware version.

The latest firmware version for the R412 is M0.09.00,A.02.11.
The latest firmware version for the R410 is L0.0.00.00.05.06,A.02.01.

  1. Contact u-blox for the latest firmware and update tool.
  2. Use the USB to connect directly to the u-blox module
    The text on this side should say: USB SARA module

    Note

    On older revisions the USB cable needs to be soldered on.

  3. Install EasyFlash.

  4. Reboot PC.
  5. Put the firmware file in the installation directory.
  6. Open EasyFlash as administrator.
  7. Select R4 and USB, leave baudrate empty.
  8. Hit Start and relax till the update is successful.

N2

  1. Contact u-blox for the latest firmware and update tool.
  2. Use the Arduino programming port.
  3. Load the passthrough sketch.
  4. Use UEUpdater to update the module.