Running NetBSD on the Orange Box

xnetbsdonns3Figure 1: The diminutive tablet finally shows its X (click to enlarge).

The orange box Pi2 powered tablet is shown running Netsurf on NetBSD in Figure 1. It’s always so hard to get good pics of screens in photos like this. It really looks much clearer in reality (versus this pic) …

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A Cooling Fan for the “Homemade” Tablet

faninsideenc2Figure 1: The fan needs a couple more machine screws.  Placed towards the top of the enclosure, near the processor, it draw off heat from both sources (LCD and processor). Click to enlarge.

The first homemade tablet is equipped with a 10 inch screen, as its nine inch screen was pulled out about a month ago. With the change-over to the new screen, I noticed a little more heat build-up inside of the enclosure, and I endeavored to remedy that unwelcome discovery with a small fan attached to the side of the enclosure.

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Temperature and Pressure Sensors

With the new Cirrus audio adapter up and running, I turned my attention to the temperature and barometric pressure sensor I had purchased for the “homemade” tablet.  The device, which measures less than an inch square, is the “BMP-180” and uses the I2C communication protocol. This is advantageous, as my UART is already permanently connected to the GPS board.

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A Digital Compass for the Homemade Tablet

compass-adafruitBFigure 1: The digital compass has been mounted in the original homemade tablet, next to the powerful Imedion NiMH “C” cell bank.

The next item to be added to the original homemade tablet was a mims/magnetic compass (purchased from Adafruit at Adafruit.com).  It is an i2c device, so is only a four wire connection (Vcc, Gnd, SCL, and SDA)…

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