Search results

Thanks mate, every little helps. :) I'm not too concerned as it will probably be something stupid I've done like a disconnected wire or some such. I spent months working on the startup procedure to get it reliable as it seems to be very fussy about what gets powered on first but I've added so...

Sadly these are the latest additions to the "Shelf of Shame" :oops: RIP little fellas In reality they're not completely dead but injured enough I wouldn't trust them for anything much. The digital pins 10 and 11 are no longer working and probably others too. This is what I am using now...

Stretch a length of string down the side of the car so it touches the back wheel and just touches the front. It will give you a rough guide on how far out of alignment the front wheels are. If they are a mile out then maybe that's the issue but if close then probably not. You can get pretty...

The shunt has pack negative and positive so is able to send out the pack voltage by CAN. The inverter does the same. By plagiarising the work of others I have a ready made way of reading the CAN from the shunt and inverter so although the charger might be able to do the same I'm sticking with...

Another thing I discovered was that the circuit I built (on the previous page of this thread) to sense when the charger plug is pushed in and send a Gnd to power my Arduino Nano, sends positive 12V when the plug is not in. :oops: I suspect this may be what killed my first Nano. :(

Yes mate, it's currently triggered by the brake light switch and as I was writing the post above it occurred I could use it but I need to confirm it won't pull on the brake lights but I guess another relay would sort that. I think there is an ignition switch for the inverter too which also...

Over the weekend I discovered that disconnecting Gnd from the accelerator pedal to prevent the car driving away while the charge cable is plugged in is NOT A GOOD IDEA! At one point during testing I turned on the ignition and the motor suddenly revved without warning. Thankfully I had the car...

The good news is the new Nano is working and the circuit that detects when the Charger is plugged in also works. When I plug the charger in the Nano gets 5V and powers two relays which stay on until the charging sequence completes. There are still a few things to sort out but I'm finally...

I'm sorry to hear that GG, I love motor sport and everyone knows it can be dangerous but it's always gut wrenching to see someone get hurt. it never occurred to me that these connectors could be so dangerous but if you look at the tip of the plug in the photo it clearly sticks out beyond the...

Want a laugh guys? Here's a top tip, if using these connectors to connect your 12V then DO NOT try to plug them in live. If you do then don't be surprised if you let out the blue smoke The hole on the left isn't meant to be there. :oops: Turns out the positive of the plug sticks out a...

None taken. :) The replacement is built and ready for testing tomorrow so here's hoping I don't do the same again. ;)

Is the noise from the front or back?

Looks like I cocked up somewhere. :mad: While testing in the car I seem to have blown two digital inputs in the Nano so am now rebuilding the circuit. I'm not certain how it happened but I probably stuck 12V up it's arse and it didn't like it so it'll to be easier to do it again than to try and...

Too late! Sorry guys but I think I may have started WW3! :eek: And we can't even blame the Donald! :oops: Thanks mate, I've been into electronics and computers since I was 15 and been programming off and on ever since so this stuff is what I enjoy doing. I've never been very good at it compared...

If I was doing this kind of stuff every day or even every week then yes I agree but it might be 6 months before I'm back at it and I'll be round the fish bowl waaaaay too often to remember anything I've learned. And anyway I tried to learn programming when I was a teenager and in my twenties and...

It turns out if you want AI to write your code you need to give it VERY specific requirements. Sometimes you even need to suggest where it might have gone wrong for it to repair it's mistakes. After many hours staring at the damn thing it occurred to me the approximate area where the issue was...

Phew! After many not fun hours fighting with ChatGPT and Deepseek, I finally have a working software solution, if anybody is mad enough to have a look the code is below. Basically I gave up on using a MOSFET module as neither ChatGPT nor Deepseek could figure out the logic required to turn it on...

I've got a little further with charge control As always I need to write this out cause my brain is way to small to think this through and every time I think it's ready to wire into the car I realise I've forgotten about some issue that could crop up. Having now spent a couple of hours going...

It's t It's the way I've approached the whole thing from 2020. I started with a vague idea what to do, broke the whole thing down into bite sized projects and worked on each as I came to it. It resulted in mistakes and extra work from time to time but made the project possible.

So I've spent a bit more time on the charging and am finally getting close to sorting it. As usual for me I didn't plan ahead very well so ended up with two circuit boards so this is what I've now got. The circuit with the LM393 still detects when the EVSE is plugged in and I think I will use...