Particle Power Shield with Headers
The Particle Power Shield is the best way to—you guessed it—provide power to your mobile Particle projects. Based around the MCP73871 battery management controller, this shield allows you to simultaneously power a Photon and charge a connected Li-Ion or Li-Po battery.
Pinout
- USB
On-board USB power/charge input; Particle docs state the Power Shield can power the Particle device and charge the LiPo from USB.
Type · power inputVoltage · USB 5V input; charge current is set to 500mA when charging from USB per Particle docs. - DC input
External DC supply input for powering the Particle device and charging the 3.7V LiPo battery; Particle docs state DC is preferred over USB when both are present.
Type · power inputVoltage · 7 to 20V DC operating input, current consumption 1.2A max from non-USB DC sources per Particle docs. - LiPo JST
3.7V LiPo battery connector charged by the shield and used by the power-management circuit.
Type · batteryVoltage · 3.7V LiPo battery; Adafruit product page states the shield ships with a 3.7V 2000mAh Li-Po battery. - D0 / SDA
Particle D0 I2C data line used by the MAX17043 fuel-gauge chip; Particle docs say avoid using D0 as GPIO because it will interfere with the fuel gauge.
Type · i2cVoltage · Particle I2C logic level on Photon/Core shield interface.
Start wiring
I2C · USB 5V input; charge current is set to 500mA when charging from USB per Particle docs. · 7 to 20V DC operating input, current consumption 1.2A max from non-USB DC sources per Particle docs.
Confirm the data interface matches your host board.
Module pins: D0 / SDA, D1 / SCL. Schematik maps them to your board in the app.
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