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SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Member #120276

Member Since: February 13, 2010

Country: United States

  • Hello, I’ve read about gas sensors that for them to work properly over an extended period of time, the voltage provided needs to be cycled constantly within a certain range.

    However, I’ve seen nothing about that in these comments / diagrams / code examples.

    Does anyone know more about this? Thanks!

  • Could you hook this up to a USB wall charger (with requisite diode) and make it a system too that provides rechargeable USB power (for prototyping boards, cellphones, etc)?

    Thanks, J

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