Tag Archives: Tablet

Level Shifting and Tablet Building …

Figure 1: The new tablet uses re-purposed materials on the circuit board floor. This project is more involved than a simple exercise in converting 3.3 and 1.8 volt logic levels.  It also involves building yet another homemade tablet.  I have … Continue reading

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Homebrewing a Board for the MCP3426 ADC

Figure 1:  The simple connection from the USBIO to the ADC The ADC devices currently in all three of my “homemade” tablets are a little under powered, so we’re upgrading all of them to use 16 bit Microchip MCP3426 ADC … Continue reading

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Running NetBSD on the Orange Box

Figure 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 … Continue reading

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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

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SDR/Audio/Pi2

Figure 1: The “homemade tablet” is getting cramped. (Click to expand) In figure 2, it can be seen that the little “homemade” tablet is getting quite cramped. Note that I did not mount the Cirrus card on the 40 pin … Continue reading

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Rehab for the second “Homemade” Tablet

Recently, I decided to give the engine inside the latest “homemade” tablet project a rehab.  I decided to add an internal battery supply, but to make it a decidedly different kind of thing this time around.  As with the first … Continue reading

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A “Homemade” Tablet that uses the Pi2

Figure 1: Recessed switches on the enclosure containing the tiny display and the Pi2 SoC based SBC might be an effective anti-bump device. Posted 01/18/2016: Recently, I picked up a Raspberry Pi2, just to see what all the excitement was … Continue reading

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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

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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

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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

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