Spark Photon / Core - Power Shield

Hardware
12

Hi Guys, I’m just in the process of cleaning up the repo and publishing the design files shortly. There is so much new stuff happening at Spark!

Here is a quick summary of the power shield:

  1. The PCB is of the same footprint as the Core/Photon and is stackable
  2. The heart of the shield is based around TI’s BQ24030 battery management controller
  3. The shield accepts two types of sources to charge the battery and power the Photon simultaneously:
    a. USB port - charge rate limited to 500mA
    b. A DC source from 7V to 20VDC - charge rate set to 1Amp
    (When powered by both, the priority is given to the DC source over USB)
  4. The shield also has an onboard I2C based battery fuel gauge (MAX1704X)

Hope this helps!

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