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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“Homemade” Tablet version two: GPS road test

josm-tracker-test-raspi-riscy-gps2Figure 1: First test run of the GPS module in the Raspi-Riscy “tablet” (click to enlarge)

Getting back to the GPS …

Since discovering that the placement of the GPS module in the “homemade” tablet was very critical, I’d moved all the wiring away from the little corner of the box where it was relocated, and then I was in a good position to perform the first on-the-road test of the GPS module, inside the homemade tablet I sometimes call the “Raspi-Riscy” – so as to differentiate it from the Odroid/C1 powered “homemade” tablet I have mentioned in earlier posts …

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Screenshot licenses:  The screenshot at the top of the article is of a program that has been released under a free software license (JOSM, located at http://www.openstreetmap.org and josm.openstreetmap.de). As a derivative work of that program, this screenshot falls under the same license (GPL2+). The license text preamble and a link to the full test is shown at bottom of this page. Full Text License Source: http://josm.openstreetmap.de/browser/trunk/LICENSE Any contributed OSM data shown is licensed under the OdbL: opendatacommons.org/licenses/odbl/

Note: This author and site is not affiliated with the Raspberry Pi or the RISC OS operating system in any way.  For information, see https://www.riscosopen.org  and  https://www.raspberrypi.org, respectively