Dismantling LiPos

Against my better judgement I took apart some old LiPo batteries so that I could use the single cells for some mesh networking.

After a bit of careful solder-suckering I’ve now got three individual 3.7V cells with tabs poking out.

Tonight at Northackton – Monday 3 March 2014

Pondering

Steve sent himself a text, fiddled with some AT commands and then received it on his ublox C027  Internet of Things gadget.

Mark praying

While Mark prayed for it to work, Jim made Steve’s lightbulb come on by phoning the embedded board – which duly flashed it’s little LED (not shown in the picture due to poor camera shutter timing).

ublox c027 board

Mat cut out some wood…

Laser cutting plot clock Plot clock parts

But was then puzzled it didn’t quite fit together, until Steve pointed out he’d put a key piece on upside down.

Plot clock parts put badly together

Jim turned some more things on – like his Lego-encased Raspberry Pi

Lego Raspberry Pi

Mat learnt that flashing a light on the end of a pole and waggling it about doesn’t work very well.

And most importantly Steve won a Twix!

Twix-Wrapper-Small

Then we all went home.

Next meeting: Monday 17 March 2014, 7pm.

 

Happy New Year!

It’s been a bit quiet here so not much has gone on the website.  We’re still meeting on every other Monday, starting 6th January 2014.

See you there.

Laser-cut RPi case

It’s a bit de rigeur, but after finishing some etching last meeting, and with a bit of time left, we cut an RPi case in 3mm acrylic.  The design is from Adafruit, and has the nice feature of snapping together, with no bolts, screws, or glue required!

Aside from one miss where one letter from one label was cut instead of etched, it came out quite well.  This was I think £3 of material and £2 of cutting time on the laser.