Monthly Archives: September 2013

RTFD!

Well, I work with software (mostly developing it), I work with Linux systems from embedded to hpc. When asked why something doesn’t work, I am known for telling people to “RTFM!”. My favourite, when some muppet¬†distinguished colleague says they don’t … Continue reading

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Intermission

Oops! Seem to have to had to do some extreme soldering ūüôā I sampled a TLC5947DAP (basically, a¬†common cathode¬†8×8¬†RGB LED driver) at the same time I requested the INA125. I opened it to see just how small it was and … Continue reading

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Scales, again…

Enjoying a couple of days off at the moment so getting plenty of time to play with stuff. The scales have been progressing although I couldn’t get anywhere with the 3 transistor soft on/off switch. I tried the 555 timer … Continue reading

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Basic scales, tested and working

Got the 12-bit ADC wired in this morning. Here’s a schematic VS is the voltage in from the scale’s PSU. It’s nominally 7.5V but anything in the range 6.5V to 12V should be just fine and not kill anything. Because … Continue reading

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Progress!

Ok, been tinkering with the scales again. Sawed the existing circuit board in half (as you do) and re-fitted the buttons. Didn’t take long: Then I finished the display driver board… The 6 pins to the left of the IC … Continue reading

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Scaling the heights, or not…

Well I’ve made a start on re-building the scales. Things are a bit more mixed than I would like though. Firstly, a bit more dismantling revealed “The Blob” Not a lot I could do with that, really. Below the LCD … Continue reading

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A weighty matter

Haven’t had much time for electronics recently, and I can’t say I wanted to be stuck indoors much when the weather was too good to miss. So, I’ve made no progress on lots of fronts. Tomorrow starts with a trip … Continue reading

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