Don’t knock it until you try it
How are you handling programming the attiny?
avrdude on a raspi3
Awesome. I have yet to program one but looks like its just SPI and can therefore be done with a number of Interfaces. Are you ordering the PCBs in bulk? I’d love to try my hand at assembly and distribution of you need help.
So far its just been (ab)using jlc’s cheap services to get far more pcbs than i need to test. I’ll probably go through them again once the design is finalized.
I’m gonna go with ASS-S (Anti-Spark Switch Solution)
BTW, great work @deltazeta.
@deltazeta when this switch releases the power to the esc/vesc does is it a soft power release or it is a hard on off like a loopkey?
Reason for my question-
The power release will be similar to a loopkey. The precharge circuit is just a 10ohm resistor, like the xt90s’ 5ohm resistor. The release will be “hard” compared to mosfet-based methods that ramp the power up, but slightly less hard compared to a loopkey.
Whether or not it will be sufficient to solve your problem is anyone’s guess though.
Do you have any other prototypes i could buy/test?
Not currently, but soon™
Please put me on the list for when they are availible!
Oh dam i have sum competition. XD good work.
I have also attempted this, and also failed to succeed in a way to design this without an MCU. I feel like a certain combination of flip-flops and comparators should be able to do this, but I never came up with a way, especially after you add 50ms (on) and 2700ms (off) debouncing. (the latter in case debris hits the power switch)
I’d recommend 50ms / 2700ms
Can you at least offer a normal person translation pls
Well I understand that part lol
Could use just one MOSFET for some savings?
The Wurth screw terminal for fuse are from DieBieMS BOM? They’re awesome but $4 per piece, and I think they have to be press fit into pcb using special equipment? I wonder if there’s a cheaper and easier for DIY screw terminal.
Very nice, thanks for posting!