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mpu6050/examples
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juliangaal 2e0fa7a5f3 add example README [skip ci]
2021-02-20 13:27:21 +01:00
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motion_detection.rs prep for crate version 1.4 2021-02-20 13:13:04 +01:00
README.md add example README [skip ci] 2021-02-20 13:27:21 +01:00
simple.rs prep for crate version 1.4 2021-02-20 13:13:04 +01:00
test.rs prep for crate version 1.4 2021-02-20 13:13:04 +01:00

README.md

Linux example (Raspberry Pi 3B)

Cross compile

Requirements:

$ apt-get install -qq gcc-arm-linux-gnueabihf libc6-armhf-cross libc6-dev-armhf-cross

Rustup:

$ rustup target add armv7-unknown-linux-gnueabihf

To configure the linker use .cargo/config file

cross-compile with

$ cargo build --examples --target=armv7-unknown-linux-gnueabihf

Copy binary to rpi, once steps below are successfully completed.

On RPi (RPi OS lite, 15.02.21)

Install i2c dependencies
$ sudo apt-get install i2c-tools libi2c-dev python-smbus -y
Enable and load kernel modules at boot
  1. edit /etc/modules and add 
    i2c-dev
i2c-bcm2708
  2. edit /boot/config.txt and add/uncomment 
    dtparam=i2c_arm=on
dtparam=i2c1=on
  3. reboot
  4. check if working with sudo i2cdetect -y 1 or sudo i2cdetect -y 0. You should bet a signal similar to this 
      0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- 68 -- -- -- --
70: -- -- -- -- -- -- -- --
  5. Wire up
    RPi GPIO MPU6050
    5V Power VCC
    Ground GND
    GPIO 2 SCL
    GPIO 3 SDA