Tag Archives: Odroid

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 … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | Leave a comment

A Digital Compass for the Homemade Tablet

Figure 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 … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | Leave a comment

Another SoC/SBC First Look

Figure 1: A recent addition to the SoC herd is the xu4 from Hardkernel … (click to enlarge) Posted 06/30/2016: I love to get the brown non-descript boxes in the mail, especially when those boxes contain more SoC/SBC investigative opportunities. … Continue reading

Posted in Uncategorized | Tagged , , , , | Leave a comment

Tiny Power RF Comm

Figure 1: Status and printDetail() page of the pingpair_dyn sample app (click to enlarge). Finally, the nRF24 devices are talking to each other!  It was a bit of a road trip.  One thing to note is the importance of the … Continue reading

Posted in Uncategorized | Tagged , , , , , | Leave a comment

A collection of SoC Projects

Figure 1: A growing Collection of little Soc/SBC powered computers (click to enlarge). Today, when I visited my own site, I realized how confusing some of the projects may seem, because they reference different boards and things, and it’s a … Continue reading

Posted in Uncategorized | Tagged , , , , , , | Leave a comment

The Homemade Tablet’s Little Brother

Figure 1: We’re growing the family, and HT version two is being born. Here it is shown, perched on top of the original “homemade tablet” (click to enlarge). Originally, the idea was to put a very small display on the … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | Leave a comment

New C1+ has arrived!

Figure 1: The new C1+ SoC board arrived in only two days (click to enlarge). With more projects than a single SoC board can handle – banging around in my mind, I decided to procur another one. The C1 series … Continue reading

Posted in Uncategorized | Tagged , , , , , | Leave a comment

Homemade Tablet – Bluetooth Revisited

Figure 1: My workbench shows the diminutive tablet next to my regular LCD and computer. A few posts ago, I described the addition of a bluetooth keyboard to the little tablet’s accessories collection (or at least the attempt to do … Continue reading

Posted in Uncategorized | Tagged , , , , , , | Leave a comment

Homemade Tablet – Getting the Battery Parameters

The start up voltage was higher today (10.35 volts) than it was yesterday (9.65 volts). That may point to the batteries being a little more discharged than I thought, coming out of the shipping box. If that’s the case, then … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , | Leave a comment

Homemade Tablet – Fun with Auxiliary batteries

Figure 1: Working up a new battery configuration. The new batteries arrived in a small but heavy package. I pulled the brand new Imedions out of the box, and tested them for voltage. All but one was OK out-of-box with … Continue reading

Posted in Uncategorized | Tagged , , , , , | Leave a comment

Homemade Tablet – More Battery Hacking

The batteries were purchased without much thought, as they were extremely inexpensive. There is high variability in NiMH cells, depending upon manufacturer. Some simple math shows that I am not extracting the full capacity of the batteries while running the … Continue reading

Posted in Uncategorized | Tagged , , , , | Leave a comment