• RS Stock No. 143-8546
  • Brand Arduino
  • Mfr. Part No. A000135
Arduino PRIMO with WiFi, NFC, BLE
Product Details

Arduino Primo

The Primo is the first Arduino board featuring a Nordic nRF52 processor. The NRF52 has integrated NFC (Near Field Communication) and Bluetooth Smart (BLE). The Primo also has an integrated Espressif ESP8266 to handle the WiFi connectivity.

There are several options for powering this board; micro-USB, via the Vin pin or using its 2-pin JST-PH battery connector. The board includes a Li-ion/Li-Po battery charging circuit and a battery charge indicator on the base of the board.

The Primo has three microcontrollers:
Nordic nRF52832 - main Arduino microcontroller
ST Micro STM32f103 - service microcontroller for debugging and programming
Espressif ESP8266 - WiFi and internet connectivity.

Primo Board Main Features

14 digital input/output pins (of which 12 can be used as PWM outputs)
6 analogue inputs
64 MHz ceramic resonator
micro-USB connector
ICSP header
Battery charger
Infrared receiver and transmitter
NFC antenna
BLE interface
Two service buttons and reset buttons for the various microcontrollers

WiFi Microcontroller

Processor: ESP8266
Architecture: Tensilica Xtensa LX106
Operating Voltage: 3.3 V
Flash Memory: 4 MB
RAM: 8 MB instruction, 12 MB data
Clock Speed: 80 MHz
WiFi: 802.11 b/g/n 2.4 GHz
Wake up time: < 2 ms

Arduino Microcontroller

Microcontroller: Nordic nRF52832
Architecture: ARM Cortex-M4F
Operating Voltage: 3.3 V
Flash memory: 512 KB
Clock Speed: 64 MHz
Analogue I/O Pins: 6 + 1 DAC
DC Current per I/O Pins: 15 mA
Bluetooth Smart: BLE 4.0: TX power up to +4 dBm -96 dBm sensitivity in BLE mode
Other features: PDM interface, AES HW enc, NFC tag

Service Microcontroller

Processor: STM32F103RBT6
Architecture: ARM Cortex-M3
Operating Voltage: 2.0 V to 3.6 V
Flash Memory: 64 KB
Clock Speed: up to 72 MHz
Main Features: USB/Uart converter, CMSIS-DAP, GPIO expander, Board power management, IrDA

Required Software

Arduino IDE 1.8.x software - download the Arduino NRF52 Boards platform from the Board Manager and follow the Getting Started guide.


Arduino Nordic Development Boards

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ClassificationDevelopment Board
NameArduino Primo
Device CoreARM Cortex M4F
Processor Family NameArduino
Processor Part NumberNordic nRF52832
Processor TypeMCU
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Technical Reference
  • RS Components

    Statement of conformity

    The product detailed below complies with the specifications published by RS Components. Where applicable it provides assurance that electrostatic discharge sensitive devices have been handled and packed under conditions that meet the administrative and technical requirements of the ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 Electrostatic Control Standards.
    RS Stock No. 143-8546
    Description Arduino PRIMO with WiFi, NFC, BLE
    Manufacturer/Brand: Arduino
    Mfr. Part No. A000135
    The foregoing information relates to product sold on, or after, the date shown below.
    Date Sep 24, 2017
    RS Components Ltd, Birchington Road, Corby, Northamptonshire, NN17 9RS, UK
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