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2.4 GHz RF USB Dongle, nRF24L01, with AT91SAM7S64 MCU US$55.93

SAM7-NRF24LR
2.4 GHz RF USB Dongle, nRF24L01, with AT91SAM7S64 MCU


USB plug-in dongle with nRF24L01 and AT91SAM7S64

This USB dongle board has an Atmel AT91SAM7S64 ARM7TDMI-S microcontroller and a Nordic nRF24L01 2.4GHz RF transceiver. It allows easy communication between a PC and other boards that have nRF24L01 chips on them, e.g. MOD-NRF24LR, STM32-103STK, etc.

USB RF Dongle Features

  • MCU: AT91SAM7S64 16/32-bit ARM7TDMI with 64K Bytes Program Flash, 16K Bytes RAM, USB 2.0, RTT, 10-bit ADC 384 ksps, 2x UARTs, TWI (I2C), SPI, 3x 32-bit Timers, 4x PWM, SSC, WDT, PDC (DMA) for all peripherals, up to 60 MHz operation
  • Nordic nRF24L01
  • On-board voltage regulator 3.3V with up to 800mA current
  • Power supply LED
  • Power supply filtering capacitor
  • 18.432 MHz crystal
  • PCB: FR-4, 1.5 mm (0.062"), soldermask, silkscreen component print
  • Dimensions: 50 25 mm (2 1")

Programming the microcontroller

The AT91SAM7S64 microcontroller can be re-programmed via USB using Atmel's SAM-BA software. The board also has JTAG signals terminated at through-hole pads, but not in a standard format, so you will have to make an adapter if you want to use an external programmer.

The board comes with Virtual COM Port software pre-loaded for Node A. The demo software below, as well as projects for IAR, has ready-made binaries you can load using SAM-BA to change the dongle to Node B or back to Node A. If you buy two of these dongles to use as a wireless serial connection between two PCs, for example, you'll need to change one dongle to be Node B.

USB RF Dongle Resources


This product was added to our catalog on Monday 05 November, 2012.

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