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WaiveCar / Waivecar

Waivecar
https://waivecar.com
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Screen: Power consumption monitoring #1338

Open kristopolous opened 6 years ago

kristopolous commented 6 years ago

We'd like to be able to monitor the power consumption (wattage) of the screen and the voltage level entering the screen. I'm pretty sure we can do voltage with the analog pins of an arduino board and I know there's a range of options for measuring ampage but I have no idea why the simple circuit of just a resistor is insufficient ...

I'd like the proper solution for this implemented so we can gracefully shutdown components as the car battery yields less current and keep things of a lower power draw on if possible.

Currently when the car starts, it takes a while to get the ads playing. I haven't timed it yet, but it's really quite bad and I'd like to make an effort to reduce it.

jlandau10 commented 6 years ago

Initial idea: INA219 sensor chip to I2C. Ordering a sample off amazon.