Raspberry Pi noob questions thread

Discussion in 'Raspberry Pi' started by Stitches, Nov 24, 2017.

  1. Stitches 2 and a Half Dollarydoos Staff Member . . .

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    What specific amp are you using, and with what speakers?
     
  2. Ewhizz .

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  3. Stitches 2 and a Half Dollarydoos Staff Member . . .

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  4. Ewhizz .

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    If I use an RPI 2 max current is 650mA
    With this driver board & 5inch screen:
    https://www.adafruit.com/product/2218

    and a 5inch screen the max current drawn is 500mA total. You can reduce that down 370mA by running the backlight at half-brightness (25mA).
    Teensy 2.0 uses max 28mA.
    The adafruit speaker and amp should use bugger all .

    So that means with a Panasonic 3.6v 3400mah battery , I should get approx:
    Approx 1200ma required from components
    Therefore 3400/1200 = 2.9 hrs of battery life. ??

    Using the powerboost 1000C which outputs 1.8A (adaquate as 1200ma is being drawn) it will take 3400/1000 = 3.4 hrs to charge. ??

    Am I missing anything or stuffing anything up here ?
    Thanks guys
     

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