A CircuitPython BLE Client and Server Tutorial #CircuitPython #Feather #Bluetooth
Robotron.info blogs about using Adafruit Feather nRF52840 Bluetooth boards to automate the power on a surveillance camera server.
This CircuitPython tutorial demonstrates how to build a battery powered Bluetooth BLE remote control to operate a BLE peripheral hosting a solenoid and a spectrally selective light detector. Two Adafruit Feather nRF52840 Express boards will be used for the BLE client and server.
Currently the only way to turn it on is by pressing the illuminated push button on the front of the case. My goal is to build a BLE peripheral that can attach to the front panel so I can turn it on remotely from outside the closet. I also want the peripheral to wirelessly report whether the server is on or off.
The Feathers are programmed in CircuitPython 5.0 alpha which has active BLE development.
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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