KR260-SenseHAT

Integration of RaspberryPi SenseHAT on Kria KR260 with Petalinux

This is a very basic implementation for use with Petalinux. This does not currently focus on adding more functionality. The primary goal is to add support for Sense HAT.

The LSM9DS1.py script is originally written by Tony DiCola for Adafruit Industries.
The modifications in it is done for making it work under Petalinux and removes support for SPI.

Update:
This is now a modified form of https://github.com/astro-pi/python-sense-hat
and offers the same methods and properties. However, not all methods and
properties are supported.

Please read the description of the methods you are using.

Repo Structure

KR260-SenseHAT
│
├── design_files             // Vivado and Petalinux design files
│   ├── kr260.bin
│   ├── kr260.bit            // Bitstream file
│   ├── kr260.bsp            // Customized Board Support Package
│   ├── kr260.xdc            // Vivado design constraints
│   ├── kr260.xsa            // Xilinx Support Archive
│   ├── kr260_bd.tcl         // Vivado block design TCL file
│   ├── pl.dtsi              // Modified device tree source include file, includes rpi-sense node
│   └── pl_original.dtsi     // Original device tree source include file created using XSCT
│
├── driver                   // Sense HAT driver files from the Raspberry Pi linux repo
│   ├── Makefile
│   ├── core.h
│   ├── framebuffer.h
│   ├── joystick.h
│   ├── rpisense-core.c
│   ├── rpisense-fb.c
│   └── rpisense-js.c
│
├── examples                 // Python example files
│   ├── counter.py           // Simple counter 0-9
│   ├── image.py             // Displays 8x8 RPi logo
│   ├── pixel.py             // Move pixel with joystick
│   └── rpi.png              // 8x8 RPi logo
│
├── sense_hat                // Sense HAT python package
│   ├── HTS221.py
│   ├── LPS25H.py
│   ├── LSM9DS1.py
│   ├── __init__.py
│   ├── colour.py
│   ├── exceptions.py
│   ├── sense_hat.py
│   ├── sense_hat_text.png
│   ├── sense_hat_text.txt
│   └── stick.py
│
├── LICENSE
├── README.md
├── block_design.png         // Vivado block design
└── main.py                  // Example python file, switch sensor reading with joystick

Available Properties

• humidity
• temp
• temperature
• pressure
• magnetic
• compass_raw
• gyro
• gyroscope
• gyro_raw
• gyroscope_raw
• accel
• accelerometer
• accel_raw
• accelerometer_raw

Available Methods

• show_message()
• get_humidity()
• get_temperature_from_humidity()
• get_temperature_from_pressure()
• get_temperature()
• get_pressure()
• get_compass_raw()
• get_gyroscope()
• get_gyroscope_raw()
• get_accelerometer()
• get_accelerometer_raw()

Examples

Reading Temperature, Humidity and Pressure

from time import sleep
from sense_hat import SenseHat

# 7 is I2C bus
sense = SenseHat(7)

while True:
    # Temperature
    print(f'\nTemperature\t: {sense.temp:.4f}° C')
    print(f'\nTemperature\t: {sense.temperature:.4f}° C')

    print(f'\nTemperature\t: {sense.get_temperature_from_humidity():.4f}° C')
    print(f'\nTemperature\t: {sense.get_temperature_from_pressure():.4f}° C')
    print(f'\nTemperature\t: {sense.get_temperature():.4f}° C')

    # Humidity
    print(f'Relative Humidity\t: {sense.humidity:.4f} %')
    print(f'Relative Humidity\t: {sense.get_humidity():.4f} %')

    # Pressure
    print(f'Pressure\t: {sensor.pressure():.4f} hPa')
    print(f'Pressure\t: {sensor.get_pressure():.4f} hPa')

    sleep(1)

Reading Acceleration, Magnetometer and Gyroscope

from time import sleep
from sense_hat import SenseHat

# 7 is I2C bus
sense = SenseHat(7)

while True:
    # Read acceleration, magnetometer, gyroscope

    accel_x, accel_y, accel_z = sense.accelerometer
    mag_x, mag_y, mag_z = sense.magnetic
    gyro_x, gyro_y, gyro_z = sense.gyro

    print("Acceleration (m/s^2): ({0:0.3f},{1:0.3f},{2:0.3f})".format(
        accel_x, accel_y, accel_z
    ))

    print("Magnetometer (gauss): ({0:0.3f},{1:0.3f},{2:0.3f})".format(
        mag_x, mag_y, mag_z
    ))

    print("Gyroscope (rad/sec): ({0:0.3f},{1:0.3f},{2:0.3f})".format(
        gyro_x, gyro_y, gyro_z
    ))

    sleep(1)

Displaying Information on the LED Matrix

from time import sleep
from sense_hat import SenseHat

# 7 is I2C bus
sense = SenseHat(7)

while True:
    sense.show_message('Hello World.')

    sense.show_message(f'{sense.get_temperature_from_humidity():.4f}° C')

    sleep(1)

Displaying 8x8 RPi Logo on the LED Matrix

from sense_hat import SenseHat

# 7 is I2C bus
sense = SenseHat(7)

while True:
    sense.load_image('rpi.png', redraw=True)