Pi-Lite

Preamble

I missed out on a wonderful bundle of a Pi and varioous hats, due to my playing the “gambling game”… bidding started at £20, but there was also a “Make an offer” button, so (in order to save a quick buck) I offered £19, the seller made a counter offer of £21. However, I decided to gamble and bid £20 instead – hoping to be the only bidder. Obviously I wasn’t and the bundle went for £21 – which is what I could have bought it for, if I hadn’t decided to gamble… oh well.

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Aukey CB-H19

Preamble

I bought this on eBay, Aukey USB 3.0 (7 port hub) Mains Powered 3 Charging Ports 2.4amps, £9.16+2.97

I purchased this to use in conjunction with the Nanotech dual USB 3.0 express card, which was struggling to provide the current for a 5TB Backup Plus USB drive, with the associated over heating issues. I hoped that the external PSU would alleviate the power draw and over heating issues experienced with the NanoTech ExpressCard. See ExpressCards on Santa Rosa MacBook Pro for more details about the overheating issue.

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Creating a bootable SD card for the Raspberry Pi on OS X

Preamble

As pointed out in this thread, imager_1.4 – “corrupt image” on OS X 10.9.5, the Raspberry Pi imager doesn’t work on versions of OS X prior to 10.13… so, roll your sleeves up and do it manually.

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Servo control using an N76E003AT20 board

Preamble

Instead of the 16 channel PCA9685 based servo controller, use a N76E003AT20 two channel board to control a pan/tilt Pi cam setup using a Jetson Nano.

So, the code from Paul McWhorter’s, AI on the Jetson Nano LESSON 31: Controlling Servos with the Jetson Nano using the PCA9685 , will change…

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To RAID or not to RAID… that is the question…

Preamble

I’m needing some serious backup disk space. I could either continue with my stategy of Seagate 5TB Backup Plus USB 2.5″ drives, but I am runing out of USB ports on my MacBook Pro… even taking into account the 2 port USB 3.0 ExpressCard, and USB 3.0 power hub solution. So, I went looking for a viable alternative solution.

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Getting an old Penryn MacBook Pro to work

Preamble

A friend had SL running on a 17″ 2008 Penryn MBP. Upgrade to ML fails. Gives mac to me. I try to boot using an SSD with a known working installation of ML – just spinning gears at start up. Only a SL partition on the same SSD works.

Then other issues…

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Repairing Humax remote (RM-F01)

Preamble

After not using my FOXSAT-HDR and Humax remote for a few years, I found that the batteries had leaked a bit and that the remote was no longer working.

The silver ring around the OK button had always been a bit clicky and stiff after no using it regularly, so I thought I’d open it up and try to repair and clean it up…

I also wondered if it was possible to get the HDR is change source without the remote but this seems unlikely/impossible.

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