Tag: sd

Pacemaker big battery replacement

Old Pacemaker with new 1500mAh battery

Thanks to our excellent lab technician Elizabeth. I bought a 3.7v battery to replace the one in my 2nd pacemaker. I previously had replaced the 1.8 inch SSD with a SD card, so knew there was more room in the pacemaker case.

I had hoped to buy a very thin battery which I could slip under the SD card but I couldn’t find one with a higher capacity than 500mAh. Instead I looked for the highest capacity I could get which fit into the same battery space. I found a few 1100mAh batteries but then finally found one which was 1500mAh and the same voltage.

Old Pacemaker with new 1500mAh battery

I unfortunately couldn’t didn’t quite get the right size, I was about 1-2mm’s off in height. The only way to make it fit was to remove the brackets which protected the old SSD/HD from the battery. As there was no drive anymore I decided its ok to remove them. With them gone, I could shift the battery over a bit and fit it in.

Old Pacemaker with new 1500mAh battery

With some great soldering from Elizabeth, I was able to get everything back in the case and screw the whole thing together.

Looking forward to doing similar with my main pacemaker device, maybe?

Upgrading the pacemaker device with a SD card, not this time!

IMG_20190813_211758

Its a short story (not in effort and time). I tried it after a colleague suggested it instead of SSD a while ago. I tried it but found the card reader the Kalea Informatique adapter, didn’t support SD cards over 32gig. The description said 64gig but everytime I restored the pacemaker firmware it would only format to 32gig. Even using Gparted (like partition magic) to extend the Fat32 partition caused the pacemaker to no longer be accessible by my laptop (it comes up as generic Linux storage device).

I haven’t given up, I’m returning the Kalea adapter and have bought a Kalea adaptor converter but the compact flash version. Yes in short it would be a ZIF LIF to Compact Flash to SD card.

Hopefully this will actually work

At last a cheap Negative film scanner which works with Linux

negative film scanner

I’ve done the research and finally I found a negative film scanner which works with gnu/Linux (ubuntu). Its the Maplins Film and Slide Digital Scanner. It works exactly how I would expect it to. You scan the slides into the memory of the machine or even on to a SD card then you connect the whole device to a pc via usb port to transfer the images out of the device.

The only issue I’ve seen is, you can’t scan while the device is connected to a pc, which is a pain because it charges/powers over USB (even ejecting the device doesn’t help). The device has a total of 30meg of on board storage is pretty shocking specially when your scanning photos at 5 mega pixel. Of course adding the SD card (it doesn’t support SDHC either) you can get loads more space.

The device is great, it did cost £50 but you can pretty much do most of the scanning while sitting on the sofa. Now if only there was a quicker way to scan through my long history of camera negatives. I got about 60 negatives to go.