Did you manage to get soldermask between the pads on the PCB's? I think through itead 0.5mm pitch is pushing it, so I doubt I'll end up with soldermask. I was gonna try hand flowing them first, but I have a few of them just in case I need to resort to the iron.
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ArcticMyst Security by Avery
Another one of my crazy projects :D
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Just thinking about soldering those makes me shiver.
djQUAN
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I hand solder these at work when doing countermeasures on designs. 
It isn't too hard with the right technique. If all else fails, solder wick helps a lot.
It isn't too hard with the right technique. If all else fails, solder wick helps a lot.
The programming begins
I was actually surprised how fast I managed to get the LTC battery monitor up and running, I was expecting it to be a lot more painful. But so far I've got it reading the cell voltages, displaying them on the LCD, and I've also got the code for the speed sensor ready.
I was actually surprised how fast I managed to get the LTC battery monitor up and running, I was expecting it to be a lot more painful. But so far I've got it reading the cell voltages, displaying them on the LCD, and I've also got the code for the speed sensor ready.
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Got a bit more done, lasercut the box for the LCD unit and mounted a few buttons, programmed a few various display options, and also added some custom large characters for displaying the speed. I also programmed the charging code, so it now detects when the charger is plugged in, will disable the ESC, and display voltage and battery charge percentage.
Next up is programming the current ADC, adding some battery protection code, and fixing it so the LCD isn't constantly updating even though the values haven't changed.
Dan
Next up is programming the current ADC, adding some battery protection code, and fixing it so the LCD isn't constantly updating even though the values haven't changed.
Dan
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That's an amazing project Dan I love the LCD design as well
Can't wait to see this fully completed :beer:
I love the LCD design as wellCan't wait to see this fully completed :beer:
Current measurement working
I also blew up a battery protection chip somehow, probably from the large inrush spikes when I connect the power. So I added a few protection resistors on each of the input pins to limit the current draw (it has inbuilt clamping diodes), removed the old one, and stuck a new one in. Man this is tedious!
I also blew up a battery protection chip somehow, probably from the large inrush spikes when I connect the power. So I added a few protection resistors on each of the input pins to limit the current draw (it has inbuilt clamping diodes), removed the old one, and stuck a new one in. Man this is tedious!
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ARG
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Is that giant font in the 16x2 Arduino library, or did you make it yourself?
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ARG, they're not part of the library, no, they're basically custom byte arrays that are stored in the LCD's 8 custom character memory. If you Google big font 16x2 there are a few examples. I'll post my code a bit later too.
Will, patience and practice
Will, patience and practice
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