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LEGO MINDSTORMS EV3 Battery
~~~~~~~~~~~~~~~~~~~~~~~~~~~
LEGO MINDSTORMS EV3 has some built-in capability for monitoring the battery.
It uses 6 AA batteries or a special Li-ion rechargeable battery pack that is
detected by a key switch in the battery compartment.
Required properties:
- compatible: Must be "lego,ev3-battery"
- io-channels: phandles to analog inputs for reading voltage and current
- io-channel-names: Must be "voltage", "current"
- rechargeable-gpios: phandle to the rechargeable battery indication gpio
Example:
battery {
compatible = "lego,ev3-battery";
io-channels = <&adc 4>, <&adc 3>;
io-channel-names = "voltage", "current";
rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;
};
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