New C1+ has arrived!

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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 has been upgraded, and now is called the C1+ …

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Homemade Tablet – External Battery Case

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The batteries were pretty exposed, lying on the kitchen table with their wires all hanging out. Of course I had to fix that situation. Today, the mailman brought the clear top box I’d been waiting for, which helped to put the batteries into a better home. Happily I managed to find a battery case in the exact same color as the tablet, in spite of the fact that I ordered the two cases, each from a different manufacturer. I thought the photo (top) came out pretty well. The red on the display is reflecting off of my bedroom walls.

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Homemade Tablet – Getting the Battery Parameters

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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 I’m looking at an even better runtime on these freshly charged batteries. Vaguely, this makes sense, because of the efficiency difference between the booster and the DC-DC converter, I was indeed expecting a better runtime than four hours yesterday. So, time will tell. Literally.

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