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.
Continue reading Pi-Lite
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.
Continue reading Aukey CB-H19
0-1V accurate power supply.
Many variable power supplies (lab/bench based) are fine for over 2 V, but below 1 V the voltage output becomes either unstable or when varied offers very little granularity.
Continue reading Low voltage power supply
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.
Continue reading Creating a bootable SD card for the Raspberry Pi on OS X
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…
Continue reading Servo control using an N76E003AT20 board
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.
Continue reading To RAID or not to RAID… that is the question…
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…
Continue reading Getting an old Penryn MacBook Pro to work
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.
Continue reading Repairing Humax remote (RM-F01)
These are the last working versions for various versions of OS X.
Continue reading The last Firefox for various OS X versions