Inertial Monitoring Unit
As discussed in earlier sections, the Arduino 101's Curie module contains a 6-axis combination accelerometer and gyroscope. The built-in CurieIMU library uses the RTOS to produce a raw feed of the orientation vectors of the board. There are many guides on how to visualize board movements; I used the one located on the Arduino website.
As you can see the example works quite well, but I had to decrease the sensitivity of the unit a little to get a more accurate real-time representation of the board. I was impressed with how easy it was to set this up.
I used the guide on the Arduino website to setup this Bluetooth sketch. The LED will turn on as a connection indicator, and the potentiometer will provide a varied voltage input to the analog 0 pin to emulate a battery sensor. The point is to show how Bluetooth can be used to monitor sensor inputs to the board.
To read the Bluetooth connection on my phone, I downloaded the nRF Master Control Panel. Once I opened the program and the code was loaded into the Arduino, it quickly found the Arduino 101. The Arduino 101's broadcast name can be changed, and in this case, it is called "BatteryMonitorSketch". Once connected, I opened up the "Battery Service" tab and under "Battery Level" was the value controlled by the potentiometer.
It was very simple to setup this Bluetooth connection. Bluetooth range was roughly 30 feet, and latency was quite low. The integrated Bluetooth is a nice feature of the Arduino 101.
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Arduino 101]
- Page 3 [Setup and Example Sketches]
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