$29 Bluey nRF52832 BLE & NFC Development Board Comes with Temperature, Humidity, Light, and Motion Sensors

Electronut Labs, a startup based in Bangalore, India, has designed Bluey board powered by Nordic Semi nRF52832 Bluetooth LE SoC, and equipped with 3 sensor chips reporting temperature, humidity, light intensity, and acceleration data.

Bluey board specifications:

  • SoC – Nordic Semi nRF52832 ANT + BLE ARM Cortex-M4 @ 64 MHz processor with 512kB flash, 64kB RAM
  • Storage – Micro SD slot
  • Connectivity – Bluetooth 4.2/5 LE and other proprietary 2.4 GHz wireless standards via PCB Antenna, NFC via PCB antenna
  • Sensors
    • TI HDC1010 Temperature/Humidity sensor
    • APDS-9300-020 ambient light sensor
    • ST Micro LSM6DS3 accelerometer
  • Expansion Header – 18-pin header with GPIO, 5V, 3.3V, and GND
  • Debugging – CP2104 USB interface; 6-pin SWD header
  • Misc – CREE RGB LED; 2 push buttons; coin cell holder; on/off witch; external / battery power jumper
  • Power Supply – 5V via micro USB port, up to 6V battery voltage via 4-pin header

The board is partially open source hardware with KiCad & PDF schematics (v1.1 PCB) released in Github, but not the Gerber files nor the BoM released on Github, where you’ll find some documentation, and various samples relying on Nordic nRF5 SDK to play with Bluetooth LE and sensors, as well as sample code for a 2 wheeldrive ultrasonic robot.

The board is sold on Tindie for $29, but if you live in India, you can purchase it locally instead for 1,875 Rupiah. Visit the product page for a few more details. They do not sell the full robot, as it is based on off-the-shelf parts including HCSR-04 ultrasonic sensor, DRV8835 motor driver, and chassis made by Femtech RC Model Co that is similar to the Mini Robot Rover sold on Adafruit.

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