My Raspberry Pi
My Raspberry Pi turned 2 today!

My Raspberry Pi turned 2 today!

Electronics debugging

So last night I soldered up the motor board for my car and it only effing didn’t work again. I was gutted, i’d wasted a shed load of time (it took me a lot longer to do as I was checking with my multimeter after every connection so I didn’t mess it up again.

Anyway I disconnected the motors and started prodding around running sketch with my multimeter, I quickly found out that I had a number of pins wrong on my sketch. Once corrected, I fired it up again - it still didn’t work. I rechecked the connectivity between the pins, all seemed fine until I came to check the last three pins only to realised I’d missed three connections. What a relief, but do I feel completely stupid… Well yes I do.

I was getting fed up with knocking over my helping hands while soldering so I made a magnifier support using a cheap (£3.99) desk lamp, and a magnifying glass I had lying around.

When not in use the magnifying glass is covered with a pouch from some earbuds as I don’t want to set fire to my desk.

Mods one day may include making use of the switch and adding in a lightning ring with some white LEDs to provide some focused light on my subject as well.

I was getting fed up with knocking over my helping hands while soldering so I made a magnifier support using a cheap (£3.99) desk lamp, and a magnifying glass I had lying around.

When not in use the magnifying glass is covered with a pouch from some earbuds as I don’t want to set fire to my desk.

Mods one day may include making use of the switch and adding in a lightning ring with some white LEDs to provide some focused light on my subject as well.

Loads of work on my car today, the carduino board is working without any problems, but I can’t get the motor board to work properly. I guess I’ve buggered up something, I’ll have to rebuild it on a breadboard and do it from scratch I think.

DIY crimping

mypilife:

So I wanted to make a few cables for my car, I got a shed load of crimp housings in various sizes, female crimps, and some ribbon cable. But no crimping tool, I thought I’d try to do it myself. Big mistake, my god it is hard to insert a diy crimp into the housing, the number of housings I broken this evening is unbelievable.

So it turns out that crimping is a lot easier if you do it in day light…. Still buggered up another attempt, I got as far as testing it this time though.

DIY crimping

So I wanted to make a few cables for my car, I got a shed load of crimp housings in various sizes, female crimps, and some ribbon cable. But no crimping tool, I thought I’d try to do it myself. Big mistake, my god it is hard to insert a diy crimp into the housing, the number of housings I broken this evening is unbelievable.

I made a start on my list…

So on a break at work today I came up with a list of the soldering left to do on my carduino - not sure that’ll catch on. So I’m breaking out the programming pins and the pins I’m using for the control of the motor drivers then also providing straight female headers on the all the other IO to allow easy connection of sensors etc.

So on a break at work today I came up with a list of the soldering left to do on my carduino - not sure that’ll catch on. So I’m breaking out the programming pins and the pins I’m using for the control of the motor drivers then also providing straight female headers on the all the other IO to allow easy connection of sensors etc.

Well I’ve taken the plunge and soldered up the first of my boards for my car this morning. This one is basically an Arduino sans the programming ability. I’ll add some headers to the board - if I can fit them on - some may be a bit tight but I should have enough to make the car.

Anyway next job is to solder up the driver board. then figure out how to mount them to my car, may be time to invest in some hex spacers.

Been looking for a cheap hobby vice for ages; Lidl have one this week. I picked mine up on the way home this evening I just need to get cleared up after our holiday before I can get it out.