Bluey is a BLE (Bluetooth Low Energy) development board with Temperature, Humidity, Ambient Light and Accelerometer sensors.
Bluey uses the Nordic nRF52832 BLE SoC (System on a Chip) which has an ARM Cortex-M4F CPU and a 2.4 GHz radio that supports BLE and other proprietary wireless protocols. It also supports NFC, and in fact the board comes with a built-in NFC PCB antenna.
You can use bluey for a wide range of projects. The BLE part is ideal for IoT projects, or if you want to control something with your phone. The nRF52832 SoC has a powerful ARM Cortex-M4F CPU, so you can use this board for general purpose microcontroller projects as well.
With BLE and useful built-in sensors, bluey is a great platform for learning IoT, BLE programming, ARM, and microcontrollers in general. In fact, it's being currently used in Embedded Systems training courses.
The bluey github repository has a bunch of interesting demo projects (like the Bluey Beacon and 2WD robot - photos shown above) that we have built using bluey - so do take a look!
To get a project up and running with bluey, you need to first build the code to generate a .hex file and then upload it to the board. bluey comes in with a built-in bootloader that lets you upload code without any special hardware. Another option is to use an inexpensive piece of STM32 hardware running Black Magic Probe firmware (see photo above) on it. This allows you not only to upload code, but also debug your program using GDB. Read our documentation to get started with bluey and explore these options.
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I am a software engineer and Embedded Systems consultant based in Bangalore, India. I have a Bachelor of Technology from the Indian Institute of Technology Bombay, and an MS from Pennsylvania State University, USA. I worked in the software industry in the San Francisco Bay Area for about 6 years before returning to India in 2004.
I have been a tinkerer since I was a teenager building electronic circuits, and continued this trend with programming in college. Around 2012, I started electronut.in – a blog on electronics, microcontrollers, and programming. The blog lead to the formation of Electronut Labs, and our first successfully crowdfunded product snapVCC (a power supply for Makers). The blog also let to my first book Python Playground (No Starch Press) which has sold close to 10,000 copies and has been translated to three languages.
Electronut Labs is now a small business in Bangalore and we are focused on creating innovative electronics hardware.