Hi Everyone,

Here are some notes (raw) on my "show-and-tell" raspberry pi with the Sense Hat (B). I also included a link to my github fork of the stratux.

My fork of the Stratux project https://github.com/brieweb/stratux

Sense HAT (B) for Raspberry Pi, Multi Powerful Sensors https://www.waveshare.com/sense-hat-b.htm

Wiki page for the SenseHat(B) https://www.waveshare.com/wiki/Sense_HAT_(B)

C program demos for the Sense Hat (B) https://files.waveshare.com/upload/6/6c/Sense-HAT-B-Demo.7z

Datasheet for 20948 chip

https://invensense.tdk.com/download-pdf/icm-20948-datasheet/

MPU9250 – 9-Axis Sensor Module – Part 1 https://wolles-elektronikkiste.de/en/mpu9250-9-axis-sensor-module-part-1

MPU9250 – 9-Axis Sensor Module – Part 2 https://wolles-elektronikkiste.de/en/mpu9250-9-axis-sensor-module-part-2

Explains the registers for the chip https://youtu.be/Oen3HqUbctM

BCM 2835 library for talking through the Broadcom controller that connects to the I2C bus.

https://www.airspayce.com/mikem/bcm2835/

Eric Westphal Go AHRS code https://github.com/westphae/goflying/

Code snippet

``` unsigned short I2C_readU16(char reg) { char buf[] = { reg,0 }; bcm2835_i2c_read_register_rs(&reg, buf, 2); int value = buf[1] * 0x100 + buf[0]; return value; } ```