3 ms·
They could put it in a low power sleep mode, and wake up once ever x seconds to check if the engine is on. You could run something like this for months/years o
by learc83 14y ago
They could put it in a low power sleep mode, and wake up once ever x seconds to check if the engine is on.
You could run something like this for months/years on a car battery.
- niggler 14y agoThen you have a tradeoff: if you don't wake up frequently enough, you could conceivably drive for a good distance before noticing.
- learc83 14y agoSomething like every 5 to 10 seconds would work fine. The point is this is a solved problem for embedded hardware. The company rep said in a previous reply that it consumes < 1 mA when the ignition is off, that's good enough.