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  • MattH's Avatar
    03-29-2019, 07:17 AM
    Turtle9er, your schematic looks very neat but maybe a bit overkill for a fuel gauge. The presence of C7 for instance makes me think this was designed for a very accurate high sampling rate application. Definitely good...
    7 replies | 191 view(s)
  • MattH's Avatar
    03-28-2019, 03:42 PM
    I had a look at the NPN transistors but I kind of have the same problem: choosing the right component. I have an extremely low collector current (that's the point I don't want to drain the battery) from 0.21mA...
    7 replies | 191 view(s)
  • MattH's Avatar
    03-27-2019, 08:28 PM
    Interesting thought. Thanks
    7 replies | 191 view(s)
  • MattH's Avatar
    03-27-2019, 10:35 AM
    Hello, I need to monitor the battery level on one of my project but I would like to move away from the simple voltage divider solution since it unnecessarily drains some current. I only need to monitor the battery...
    7 replies | 191 view(s)
  • MattH's Avatar
    03-11-2019, 04:26 PM
    Crystal clear, thanks ! As for a separate power rail for digital and analog, do you think it is worth it if I am using force sensitive resistors (hence low frequency) for my analog application ? I am not sure how I...
    3 replies | 127 view(s)
  • MattH's Avatar
    03-11-2019, 01:39 PM
    Hello, I am looking at voltage regulators for a different project and I was trying to understand what exactly was AGND on my Teensy. Looking at the schematics it seems that there is only one power line and AGND is...
    3 replies | 127 view(s)
  • MattH's Avatar
    02-22-2019, 12:10 PM
    I also tested the FreeMemory function which I included in a separate library to save some space in my code. It's very neat and seems to work (I got 60596 free RAM in an empty sketch and 59824 when I run my project, so I...
    13 replies | 337 view(s)
  • MattH's Avatar
    02-22-2019, 08:10 AM
    good point. I printed the end result (data) and I also sprinkled FreeRAM() throughout the code (I realised that dynamic memory usage was... dynamic). I ended up with a minimum free RAM of 59883 that is to say 716...
    13 replies | 337 view(s)
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choosing FET for fuel gauge 03-29-2019 07:17 AM
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