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power down L3g20h

fagui
Associate

Hello.

I'm working with a l3gd20 to detect an angular movement but most of the time the mic is asleep and to save energy I want to put the l3gd20 into low consumption, for that I am writing to CTRL_REG1 0x00 to be in power down but the gyro does not he wakes up again and does nothing.

What I want is for the micro and the gyro to be asleep but if a movement is generated they wake up by the INT1 pin of the gyro.

someone could do something so you can help me?

Thank you very much for your attention.

3 REPLIES 3
Miroslav BATEK
ST Employee

In power down mode the sensor doesn't operate so it will not detect any movement and will not generate interrupt.

fagui
Associate

hi @Miroslav BATEK​  thanks for your information,

can you tell me how can i use a sensor with this function, the movement that i want to detect is when a door open slowly or quickly.

And i have in a low consume and the sensor detects this movement and turn on the micro too

Miroslav BATEK
ST Employee

L3GD20H has quite high current consumption, if you want to use gyroscope it is better to use for example LSM6DSL with current consumption 0.45mA in normal mode.