Intro

After my first experiment of using a simple build iPhone app to send info to control an external lamp I wanted to try something with data flowing in the other direction. So I chose to set up a simple circuit with a temperature sensor, and then send this data to a simple iPhone app to display the temperature.

Ingredients

  • Arduino (Genuino) Uno, Microcontroller
  • Red Bear Labs BLE Shield 2.1
  • Breadboard
  • Temperature Sensor (TMP36)
  • Power Source (computer via USB or 9V battery)
  • Jumper Wires
  • iPhone

Set Up The Circuit

Nothing complicated here. The temp sensor has 3 pins: run one to power, one to ground, and…


Intro

I love the thought of manipulating the outside world with code. This project uses Arduino, Red Bear BLE Shield and iPhone (Swift) to control the color and brightness of a light.

Ingredients

  • Arduino (Genuino) Uno, Microcontroller
  • Red Bear Labs BLE Shield 2.1
  • Breadboard
  • RGB LED
  • 3 x 220 Ohm Resistors
  • Power Source (computer via USB or 9V battery)
  • Jumper Wires

Set Up The Circuit

The circuit is a straight forward connection to a LED. Not very different from a typical ‘Hello World’ in electronics, just using a single RGB color mixing LED and not a single color LED. As seen in the diagram below, the…

Craig Liesinger

Father, Husband, Tinkerer, Learner, Project Manager, Programmer, Engineer, Expat

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