A nice feature of the Philips Hue lamps is called Geofencing. This just means that you can instruct the Hue bridge to automatically switch your lights on when you are approaching your house. So for a time I wondered how they do that. And in fact it is very easy.
It is a technique that can be used for many different purposes. Not only to test if you are around but this also makes it possible to test whether your wireless apparatus are actually functioning. It’s called ping.
Since we often have our cell/mobile phone with is, an inexpensive ESP8266 can be set up to look for the phone Internet address come into range.
Luc has Arduino code for for the project and notes it is very flexible as to what you can do once a detection is made.
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, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, 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.
Biohacking — Vitamin-C + Gelatin for Accelerated Recovery
Python for Microcontrollers — The Top Programming Languages 2019 – Python tops the charts with a CircuitPython nod! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit