keyne wrote:you could swap the ina122 for a ina199 to allow for regen if you needed it.
Jeremy Harris wrote:......There's a reset button on the controller that if pushed at power on resets the gauge to 'full'......
Jeremy Harris wrote: What's needed is a reliable indication of full charge, which means taking a bunch of measurements of a pack to see how the terminal voltage comes up to maximum over the charge cycle and then deciding on a foolproof way to determine this (something like a test for 'has the pack been over 4.15V per cell for ten minutes?' might do the job.
gwhy! wrote:Same here Jeremy,
You have been a great asset to this forum.
I finally have some picaxe chips to play with ...
Dependant on how I get on ( the design may change slightly for my purposes ( I need a few more functions ) but it will also contain the original function of Jeremy's ) and time permitting. I will be willing to make extra pcb's to send out to peeps as a one off along with a programmed chip should anyone want it , but this will be at least a few weeks away yet ( maybe not even until after Christmas ).
NRG wrote:OK got it working, neither of the two USB to serial devices I had operated correctly.
Luckily I had in my spares box an old USB to DB9 converter from Belkin I think that uses the Prolific chip set. Using a Female DB9 I was able to connect to the Picaxe chip and testing the comm port gave -0.5v to 5v on toggle of the screen LED. Simple test program from the manual works and flashes the LED on my bread board....now to to try my cct on the strip board.....
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