Nordic nRF52832 BLE development board with Temperature/Humidity/Light/Accelerometer sensors.
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Here's the public repository for bluey:
https://github.com/electronut/ElectronutLabs-bluey
Bluey can be programmed using the built-in bootloader, or using an external programmer. The latter can be done with something like the Nordic nRF52-DK which is a bit pricey. Another great option is to use the Black Magic Probe firmware on a cheap STM32F103 breakout. Once this is done, you can both upload code and debug using GDB. I've covered details for this approach in the bluey github repo.
Figuring out some logistics...
I am very happy to announce that "Embedded For Her" will be using our bluey for their course. This is a skill development program in embedded systems for women, with a focus on free hardware and software. The course will be held on Saturdays for 10 weeks from 10th June to 12th Aug 2017, in Bangalore.
Bluey Beacon - a project that uses our upcoming board. Bluey is running on a coin cell, periodically transmitting BLE adv packets containing sensor data. This is picked by a Python script running on a Raspberry Pi 3, which then uses dweet.io and freeboard.io to display the data on the web.
Getting ready to make 100...
Why LDO (AP2112K)? Why not a buck converter like AP3407 or AP3417 around the same price range and little more quiescent current?
Great project btw :)
The above require more components and we had limited board space. Overall with the passives they are more expensive than AP2112 as well. But something to consider for the next version... Thanks.
Mahesh Venkitachalam
Fabian
deandob
StanislavJochman
Shiny
Make sense as inductor adds up the cost. But provided the increase in the efficiency you can consider it for the future design.