Difference between revisions of "Sense HAT (B)"
(81 intermediate revisions by 5 users not shown) | |||
Line 1: | Line 1: | ||
− | {{Infobox item | + | <div class="wiki-pages jet-green-color"> |
− | |img=[[File:Sense-HAT-B-1.jpg|300px| | + | {{Infobox item|colorscheme=green |
+ | |img=[[File:Sense-HAT-B-1.jpg|300px|{{Amazon_nolink|default={{#ifeq: {{#urlget:amazon|0}}|{{#urlget:Amazon|0}}| default|}}|url=link=https://www.waveshare.com/sense-hat-b.htm}} |Sebse HAT B]] | ||
|caption=Sense HAT (B) for Raspberry Pi, Onboard Multi Powerful Sensors, Supports External Sensors | |caption=Sense HAT (B) for Raspberry Pi, Onboard Multi Powerful Sensors, Supports External Sensors | ||
|category=[[:Category:Expansions|Expansions]], [[:Category:Raspberry Pi|Raspberry Pi]] | |category=[[:Category:Expansions|Expansions]], [[:Category:Raspberry Pi|Raspberry Pi]] | ||
|brand=Waveshare | |brand=Waveshare | ||
− | |{{#urlget:amazon|default}}=display | + | |{{#ifeq: {{#urlget:amazon|0}}|{{#urlget:Amazon|0}}| default|}}=display |
|website_cn=[http://www.waveshare.net/shop/Sense-HAT-B.htm 官网] | |website_cn=[http://www.waveshare.net/shop/Sense-HAT-B.htm 官网] | ||
|website_en=[https://www.waveshare.com/sense-hat-b.htm Website] | |website_en=[https://www.waveshare.com/sense-hat-b.htm Website] | ||
Line 12: | Line 13: | ||
{{Product List|Mini PC/Raspberry Pi/Expansions}} | {{Product List|Mini PC/Raspberry Pi/Expansions}} | ||
}} | }} | ||
− | + | =Introduction= | |
− | + | It is a sensor expansion board specially designed for Raspberry Pi. It has an onboard gyroscope, accelerometer, magnetometer, barometer, temperature and humidity sensor, etc. I2C interface communication supports more external sensors. If you want to DIY the Raspberry Pi into a robot that can detect motion posture and orientation, or if you want the Raspberry Pi to collect sensor data such as temperature, humidity, and atmospheric pressure in the surrounding environment. | |
− | + | {{Amazon|{{#ifeq: {{#urlget:amazon|0}}|{{#urlget:Amazon|0}}| default|}}=display | |
− | {{Amazon|{{#urlget:amazon|default}}=display | ||
|More = [https://www.waveshare.com/sense-hat-b.htm More]}} | |More = [https://www.waveshare.com/sense-hat-b.htm More]}} | ||
===Feature=== | ===Feature=== | ||
− | *Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards | + | *Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. |
− | *Onboard ICM20948 (3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer), detects movement, orientation, and magnetic | + | *Onboard ICM20948 (3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer), detects movement, orientation, and magnetic. |
− | *Onboard SHTC3 digital temperature and humidity sensor, allows monitoring the environment | + | *Onboard SHTC3 digital temperature and humidity sensor, allows monitoring of the environment. |
− | *Onboard LPS22HB barometric pressure sensor, allows monitoring the environment | + | *Onboard LPS22HB barometric pressure sensor, allows monitoring of the environment. |
− | *Onboard TCS34725 color sensor, identifies the color of nearby object | + | *Onboard TCS34725 color sensor, identifies the color of a nearby object. |
− | *Onboard ADS1015 ADC, 4-ch 12-bit precision, AD expansion to support more external sensors | + | *Onboard ADS1015 ADC, 4-ch 12-bit precision, AD expansion to support more external sensors. |
− | *Brings I2C control pins, for connecting other host boards like STM32 | + | *Brings I2C control pins, for connecting other host boards like STM32. |
− | *Comes with development resources and manual (examples for Raspberry Pi/STM32) | + | *Comes with online development resources and manual (examples for Raspberry Pi/STM32). |
+ | |||
===Specification=== | ===Specification=== | ||
{|border="1px" width="500px" | {|border="1px" width="500px" | ||
− | |+style="color:blue"|''' | + | |+style="color:blue"|'''Sense HAT (B) Specification''' |
|-align="center" | |-align="center" | ||
|style="background:#646b73; color:white"|'''Working voltage''' | |style="background:#646b73; color:white"|'''Working voltage''' | ||
Line 77: | Line 78: | ||
|} | |} | ||
− | == | + | ===Product PK=== |
− | + | [[File:Sensor00.png]] | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | == | + | {{Sense hat RPI}} |
− | + | {{Sense HAT ICM20948}} | |
+ | ==STM32== | ||
+ | This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2.<br /> | ||
+ | The connection is as follows:<br /> | ||
+ | [[File:senhat.png]]<br /> | ||
+ | Compile and download the program:<br /> | ||
+ | [[File:load.png]]<br /> | ||
+ | Expected result:<br /> | ||
+ | The sensor is ok with no errors, LED2 is on:<br /> | ||
− | + | [[File:led2.png]]<br /> | |
+ | When the air humidity is lower than 80%, LED3 does not light up. LED3 lights up when the air humidity is greater than or equal to 80%.<br /> | ||
+ | [[File:led3.png]]<br /> | ||
− | + | {{Sense Hat b TCS34725}} | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | { | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | + | =ADS1015 Example—AD Conversion= | |
− | + | ==bcm2835== | |
− | + | Open the terminal of Linux, compile codes, and run the example by command:<br /> | |
− | Open terminal of | + | cd ADS1015/Raspberry\ Pi/bcm2835/ |
− | < | + | sudo make clean |
− | cd | + | sudo make |
− | sudo make | + | sudo ./AD |
− | + | Expected result:<br /> | |
− | + | [[File:ADS.png]]<br /> | |
− | + | Press Ctrl+C to end the demo.<br /> | |
− | |||
− | |||
− | |||
− | sudo make | ||
− | sudo ./ | ||
− | |||
− | |||
− | |||
− | < | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | + | ==Wiring Pi== | |
− | < | + | Open the terminal of Linux, compile codes, and run the example by command:<br /> |
− | + | cd ADS1015/Raspberry\ Pi/wiringPi/ | |
− | + | sudo make clean | |
− | < | + | sudo make |
− | cd | + | sudo ./AD |
+ | Expected result:<br /> | ||
+ | [[File:ADS2.png]]<br /> | ||
+ | Press Ctrl+C to end the demo. | ||
+ | ==lgpio Demo== | ||
+ | Enter the Linux terminal and input the following commands: | ||
+ | <pre> | ||
+ | cd ADS1015/Raspberry\ Pi/lgpio/ | ||
+ | sudo make clean | ||
sudo make | sudo make | ||
− | sudo ./ | + | sudo ./AD |
− | </ | + | </pre> |
− | + | Expected result:<br /> | |
− | + | [[File:ADS2.png]]<br /> | |
− | < | + | Press Ctrl+C to end the demo. |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | + | ==Python== | |
− | + | Open the terminal of Linux, compile codes, and run the example by command:<br /> | |
− | Open terminal of | + | cd ADS1015/Raspberry\ Pi/python/ |
− | < | + | sudo python3 AD.py |
− | + | Expected result:<br /> | |
− | + | [[File:ADS3.png]]<br /> | |
− | + | Press Ctrl+C to end the demo.<br /> | |
− | |||
− | |||
− | |||
− | |||
− | cd | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | sudo | ||
− | </ | ||
− | |||
− | |||
− | |||
− | + | ==VisionFive2 Demo== | |
− | + | Enter the Linux terminal and execute the following commands in the terminal: | |
− | + | <pre> | |
− | < | + | cd ADS1015/VisionFive2 |
− | cd | + | python3 AD.py |
− | + | </pre> | |
− | + | Press Ctrl+C to end the demo. | |
− | </ | + | ==STM32== |
− | + | This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2. | |
− | + | The connection is as follows:<br /> | |
− | < | + | [[File:senhat.png]]<br /> |
− | + | Compile and download the program:<br /> | |
− | + | [[File:load.png]]<br /> | |
− | + | Open the serial port assistant and set the baud rate to 115200. | |
− | </ | + | [[FILE:STCOM33.PNG]] |
− | |||
− | |||
− | < | ||
− | |||
− | |||
− | </ | ||
− | |||
− | |||
− | |||
− | === | + | =Resources= |
+ | ==Document== | ||
+ | *[https://files.waveshare.com/upload/4/43/Sense-HAT-B-Schematic.pdf Schematic] | ||
+ | ==Demo code== | ||
+ | *[https://files.waveshare.com/upload/6/6c/Sense-HAT-B-Demo.7z Code] | ||
+ | ==Datasheet== | ||
+ | *[https://files.waveshare.com/upload/e/e1/Ads1015.pdf ADS1015] | ||
+ | *[https://files.waveshare.com/upload/5/57/ICM-20948-v1.3.pdf ICM-20948] | ||
+ | *[https://files.waveshare.com/upload/2/20/Lps22hb.pdf LPS22HBTR] | ||
+ | *[https://files.waveshare.com/upload/c/cc/Lsf0204d.pdf LSF0204] | ||
+ | *[https://files.waveshare.com/upload/3/33/SHTC3_Datasheet.pdf SHTC3] | ||
+ | *[https://files.waveshare.com/upload/1/13/TCS34725.pdf TCS34725] | ||
− | + | =FAQ= | |
− | ; | + | {|style="margin-top: 10px; /*border-right: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" |
− | {| | + | | |
+ | {|class="roundy" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Question:''' | ||
|- | |- | ||
− | | | + | |Why the Raspberry Pi demo failed to initialize? (The following takes the TC34725 color recognition sensor as an example) |
− | | | + | |} |
− | + | |} | |
− | |- | + | <br /> |
− | | | + | {|style="margin-top: 10px; /*border-left: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" |
− | |- | + | | |
− | | | + | {|class="roundy mw-collapsible {{#if: {{{collapsed|}}}|mw-collapsed|}}" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" |
+ | |'''Answer:''' | ||
|- | |- | ||
− | | | + | |[[File:an1.png]] |
− | |||
− | |||
− | |||
− | + | For the BCM2835 and wiringPi demo such prompts appear, | |
− | + | [[File:an2.png]] | |
− | + | If a Python demo occurs the above problem, is a device data I2C data transfer error. Most of them are hardware connection errors, please check whether the hardware connection is correct, check whether there is any problem with the hardware connection, and run i2cdetect -y 1 If the IIC address is displayed, it means that the hardware connection is no problem. If the hardware connection is correct, it may be caused by incorrect use of Raspberry Pi control (see below for details), just restart the Raspberry Pi. | |
− | |||
− | + | [[File:an3.png]] | |
+ | |} | ||
+ | |} | ||
+ | {|style="margin-top: 10px; /*border-right: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" | ||
+ | | | ||
+ | {|class="roundy" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Question:''' | ||
+ | |- | ||
+ | |What will happen if using the Raspberry Pi controls incorrectly? | ||
+ | |} | ||
+ | |} | ||
+ | <br /> | ||
+ | {|style="margin-top: 10px; /*border-left: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" | ||
+ | | | ||
+ | {|class="roundy mw-collapsible {{#if: {{{collapsed|}}}|mw-collapsed|}}" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Answer:''' | ||
+ | |- | ||
+ | |If running the wiringPi demo is normal, then running Python or BCM2835 may cause the screen to fail to refresh normally, because the bcm2835 library is a library function of the Raspberry Pi CPU chip, and the bottom layer is to directly operate the registers, while the bottom layer of the wiringPi library and python are through reading and writing device file of the Linux system to operate the device, which may cause the GPIO port to be abnormal. In this case, restarting the Raspberry Pi can solve the problem perfectly. | ||
+ | |} | ||
+ | |} | ||
− | + | {|style="margin-top: 10px; /*border-right: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" | |
+ | | | ||
+ | {|class="roundy" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Question:''' | ||
+ | |- | ||
+ | |What should I do if the serial port output of the STM32 demo has no data or the data output is garbled? | ||
+ | |} | ||
+ | |} | ||
+ | <br /> | ||
+ | {|style="margin-top: 10px; /*border-left: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" | ||
+ | | | ||
+ | {|class="roundy mw-collapsible {{#if: {{{collapsed|}}}|mw-collapsed|}}" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Answer:''' | ||
+ | |- | ||
+ | |Confirm whether the baud rate is set to 115200. For the STM32 routine, please confirm that the computer is correctly connected to the development board USART2 (PA2, PA3), PA2 is TXD, and the correct COM port is selected. Control Panel -> Hardware -> Device Manager. | ||
− | + | [[File:an4.png]] | |
+ | |} | ||
+ | |} | ||
+ | {|style="margin-top: 10px; /*border-right: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" | ||
+ | | | ||
+ | {|class="roundy" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Question:''' | ||
+ | |- | ||
+ | |The serial port output data of the STM32 demo is all 0 or does the initialization fails? As shown. | ||
+ | |} | ||
+ | |} | ||
+ | <br /> | ||
+ | {|style="margin-top: 10px; /*border-left: 20px solid transparent;*/ border-top: 20px solid {{{color|#EEE}}};" | ||
+ | | | ||
+ | {|class="roundy mw-collapsible {{#if: {{{collapsed|}}}|mw-collapsed|}}" style="margin-top: -30px; margin-left: -5px; margin-right: -5px; background: {{{color|#EEE}}};" | ||
+ | |'''Answer:''' | ||
+ | |- | ||
+ | |Confirm that there is no problem with the device connection, if there is no problem, please press the reset button. | ||
− | + | [[File:an5.png]] | |
− | + | |} | |
− | + | |} | |
− | + | =Support= | |
− | + | {{Servicebox1}} | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | {{ |
Latest revision as of 03:57, 2 January 2024
| ||
Introduction
It is a sensor expansion board specially designed for Raspberry Pi. It has an onboard gyroscope, accelerometer, magnetometer, barometer, temperature and humidity sensor, etc. I2C interface communication supports more external sensors. If you want to DIY the Raspberry Pi into a robot that can detect motion posture and orientation, or if you want the Raspberry Pi to collect sensor data such as temperature, humidity, and atmospheric pressure in the surrounding environment.
More |
Feature
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
- Onboard ICM20948 (3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer), detects movement, orientation, and magnetic.
- Onboard SHTC3 digital temperature and humidity sensor, allows monitoring of the environment.
- Onboard LPS22HB barometric pressure sensor, allows monitoring of the environment.
- Onboard TCS34725 color sensor, identifies the color of a nearby object.
- Onboard ADS1015 ADC, 4-ch 12-bit precision, AD expansion to support more external sensors.
- Brings I2C control pins, for connecting other host boards like STM32.
- Comes with online development resources and manual (examples for Raspberry Pi/STM32).
Specification
Working voltage | 3.3V |
Interface | I2C |
Dimension | 65mm x 30.5mm |
Accelerometer | Resolution: 16-bit |
Ranging:±2/±4/±8/±16g | |
Gyoscope | Resolution: 16-bits |
Ranging:±250/±500/±1000/±2000°/sec | |
Magnetometer | Resolution: 16-bits |
Ranging:±4900µT | |
Barometer | Resolution:24-bits (Pressure), 16-bits(Temperature) |
Accuracy (ordinary temperature): ±0.025hPa | |
Speed: 1 Hz - 75 Hz | |
Temperature & Humidity | Accuracy (humidity):±2% rH |
Ranging(humidity): 0% ~ 100% rH | |
Accuracy(temperature): ±0.2°C | |
Ranging(temperature): -30 ~ 100°C | |
Color sensor | Resolution: 4-channels RGBC, 16-bits per channel |
ADC | Resolution: 12-bits |
Product PK
User Guides for Raspberry Pi
Hardware connection
The pins used to connect to the Raspberry Pi are shown on the right:
Hardware connection diagram:
Connect to Raspberry Pi Zero (pin header is not required)
Connect to Raspberry Pi 4 (requires a pin header )
Open I2C Interface
- Open the Raspberry Pi terminal and enter the following command to enter the configuration interface.
sudo raspi-config Choose Interfacing Options -> I2C -> yes start i2C kernel driver
sudo reboot
Install Library
If you use the bookworm system, you can only use lgpio library, bcm2835 and wiringPi can't be installed and used.
BCM2835
#Open the Raspberry Pi terminal and run the following command wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz tar zxvf bcm2835-1.71.tar.gz cd bcm2835-1.71/ sudo ./configure && sudo make && sudo make check && sudo make install # For more, you can refer to the official website at: http://www.airspayce.com/mikem/bcm2835/
WiringPi
#Open the Raspberry Pi terminal and run the following command cd sudo apt-get install wiringpi #For Raspberry Pi systems after May 2019 (earlier than that can be executed without), an upgrade may be required: wget https://project-downloads.drogon.net/wiringpi-latest.deb sudo dpkg -i wiringpi-latest.deb gpio -v # Run gpio -v and version 2.52 will appear, if it doesn't it means there was an installation error # Bullseye branch system using the following command: git clone https://github.com/WiringPi/WiringPi cd WiringPi . /build gpio -v # Run gpio -v and version 2.70 will appear, if it doesn't it means there was an installation error
lgpio
#Open the Raspberry Pi terminal and run the following command wget https://github.com/joan2937/lg/archive/master.zip unzip master.zip cd lg-master sudo make install # You can refer to the official website for more: https://github.com/gpiozero/lg
Python
sudo apt update sudo apt install python3-pip sudo apt install python3-spidev sudo apt install python3-smbus
Download Demo
sudo apt-get install p7zip-full wget https://files.waveshare.com/upload/6/6c/Sense-HAT-B-Demo.7z 7z x Sense-HAT-B-Demo.7z -O./Sense-HAT-B-Demo cd Sense-HAT-B-Demo
I2C device address
ADS1015: AD conversion demo (STM32, BCM2835, WringPi and Python four demos) Device address: 0x48
ICM-20948: 9-axis sensor demo (STM32, BCM2835, WringPi and Python four demos) Device address: 0x68
LPS22HB: Air pressure sensor demo (STM32, BCM2835, WringPi, and Python four demos) Device address: 0x5C
SHTC3: Temperature and humidity sensor demo (STM32, BCM2835, WringPi, and Python four demos) Device address: 0x70
TCS34725: Color recognition sensor demo (STM32, BCM2835, WringPi and Python four demos) Device address: 0x29
Note: The I2C addresses of all the sensors of this module are different, and the user can use all the sensors on the board at the same time.
VisionFive2 Preparation
Install Library
apt-get install pip pip install VisionFive.gpio apt-get install python3-numpy apt-get install python3-pil apt-get install python3-smbus
Download Demo
apt-get install p7zip-full wget https://files.waveshare.com/upload/6/6c/Sense-HAT-B-Demo.7z 7z x Sense-HAT-B-Demo.7z -O./Sense-HAT-B-Demo cd Sense-HAT-B-Demo
ICM20948 Examples—9-axis Sensor Demo
bcm2835
Open the terminal of Linux, compile codes, and run the example by command:
cd ICM-20948/Raspberry\ Pi/bcm2835/ sudo make clean sudo make sudo ./ICM20948_DEMO
WiringPi
Open the terminal of Linux, run the example by command:
cd ICM-20948/Raspberry\ Pi/wiringPi/ sudo make clean sudo make sudo ./ICM20948_DEMO
Expected result:
Press Ctrl+C to end the demo.
lgpio Demo
Open the terminal of Linux, compile codes, and run the example by command:
cd ICM-20948/Raspberry\ Pi/lgpio/ sudo make clean sudo make sudo ./ICM20948_DEMO
Expected results:
Press Ctrl+C to end the demo.
Python
Open the terminal of Linux, compile codes, and run the example by command:
cd ICM-20948/Raspberry\ Pi/python/ sudo python3 ICM20948.py
Expected result:
Press Ctrl+C to end the demo.
VisionFive2 Demo
Enter the Linux terminal and run the following commands in the terminal:
cd ICM-20948/VisionFive2 python3 ICM20948.py
Press Ctrl+C to end the demo.
STM32 Example
This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2. The connection is as follows:
Sense HAT (B) | STM32 |
VCC (Note: jumper cap should jump to the corresponding position) | +5V/+3.3V |
GND | GND |
SDA | PB9 |
SCL | PB8 |
Compile and download the demo:
Open the serial port assistant and set the baud rate to 115200.
Expected result:
Parameter Calibration And Calculation
Calculate Acceleration
The unit of acceleration measured by the demo is LSB (least significant bit), and the unit is often converted to gravitational acceleration (g) in actual use. The sample demo of the module sets AFS_SEL=0 by default, and the corresponding range is 16384 LSB/g (±2g), so the actual acceleration measured is:
Please refer to ICM-20948-v1.3.pdf P12.
Calculate Gyroscope Angular Velocity
The unit of angular velocity measured by the program is LSB (least significant bit). In practice, the unit is often converted to angular velocity (°/sec). The sample program of the module sets FS_SEL=2 by default, and the corresponding range is 32.8 LSB/(°/s) (±1000°/s), so the actual angular velocity measured is:
Please refer to ICM-20948-v1.3.pdf P11.
LPS22HBTR Example—Air Pressure Sensor Demo
Note: The temperature detection of the air pressure sensor is only used for compensation. For accurate temperature detection, please observe the value of the SHTC3 temperature and humidity sensor.
bcm2835 Demo
Open the terminal of Linux, compile codes, and run the example by command:
cd LPS22HBTR/Raspberry\ Pi/bcm2835/ sudo make clean sudo make sudo ./LPS22HB
Expected result:
Press Ctrl+C to end the demo.
Wiring Pi demo
Open the terminal of Linux, compile codes, and run the example by command:
cd LPS22HBTR/Raspberry\ Pi/wiringPi/ sudo make clean sudo make sudo ./LPS22HB
Expected result:
Press Ctrl+C to end the demo.
lgpio Demo
Enter the Linux terminal and input the following commands:
cd LPS22HBTR/Raspberry\ Pi/lgpio/ sudo make clean sudo make sudo ./LPS22HB
Expected results:
Press Ctrl+C to end the demo.
python
Open the terminal of Linux, compile codes, and run the example by command:
cd LPS22HBTR/Raspberry\ Pi/python/ sudo python3 LPS22HB.py
Expected result:
Press Ctrl+C to end the demo.
VisionFive2 Demo
Enter the Linux terminal and run the following commands in the terminal:
cd LPS22HB/VisionFive2 python3 LPS22HB.py
Press Ctrl+C to end the terminal.
STM32
This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2.
The connection is as follows:
Sense HAT (B) | STM32 |
VCC (Note: jumper cap should jump to the corresponding position) | +5V/+3.3V |
GND | GND |
SDA | PB9 |
SCL | PB8 |
Compile and download the program:
Open the serial port assistant and set the baud rate to 115200.
Expected result:
SHTC3 Example—Temperature and Humidity Sensor Demo
Note: The heating of the Raspberry Pi will affect the actual measured temperature. The board has an I2C interface. If you need an accurate ambient temperature, you can separate the Raspberry Pi from the module for a distance and connect it with a cable to test it.
BCM2835 demo
Open the terminal of Linux, compile codes, and run the example by command:
cd SHTC3/Raspberry\ Pi/bcm2835/ sudo make clean sudo make sudo ./SHTC3
Expected result:
Press Ctrl+C to end the demo.
wiring Pi
Open the terminal of Linux, compile codes, and run the example by command:
cd SHTC3/Raspberry\ Pi/wiringPi/ sudo make clean sudo make sudo ./SHTC3
Press Ctrl+C to end the demo.
lgpio Demo
Enter the Linux terminal and input the following commands:
cd SHTC3/Raspberry\ Pi/lgpio/ sudo make clean sudo make sudo ./SHTC3
Press Ctrl+C to end the demo.
python
Open the terminal of Linux, compile codes, and run the example by command:
cd SHTC3/Raspberry\ Pi/python/ sudo python3 SHTC3.py
Expected result:
Press Ctrl+C to end the demo.
VisionFive Demo
Enter the Linux terminal and execute the following command in the terminal:
cd SHTC3/VisionFive2 python3 SHTC3.py
Press Ctrl+C to end the demo.
STM32
This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2.
The connection is as follows:
Compile and download the program:
Expected result:
The sensor is ok with no errors, LED2 is on:
When the air humidity is lower than 80%, LED3 does not light up. LED3 lights up when the air humidity is greater than or equal to 80%.
TCS34725 Example—Color Recognition Sensor Demo
Raspberry Pi 5 currently cannot recognize the TCS34725; reason: TCS34725 is not responding.
bcm2835
Open the terminal of Linux, compile codes, and run the example by command:
cd TCS34725/Raspberry\ Pi/bcm2835/ sudo make clean sudo make sudo ./main
Expected result:
Press Ctrl+C to end the demo.
wiring Pi
Open the terminal of Linux, compile codes, and run the example by command:
cd TCS34725/Raspberry\ Pi/wiringPi/ sudo make clean sudo make sudo ./main
Expected result:
Press Ctrl+C to end the demo.
lgpio Demo
Enter the Linux terminal and input the following commands:
cd TCS34725/Raspberry\ Pi/lgpio/ sudo make clean sudo make sudo ./main
Expected result:
Press Ctrl+C to end the demo.
Python
Open the terminal of Linux, compile codes, and run the example by command:
cd TCS34725/RaspberryPi/python3/ sudo python3 main.py
Expected result:
Press Ctrl+C to end the demo.
VisionFive2 Demo
Enter the Linux terminal, and execute the following commands in the terminal:
Install pygame library:
apt-get install pygame
Run the demo:
cd TCS34725/VisionFive2 python3 main.py
Press Ctrl+C to end the demo.
STM32
This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2.
The connection is as follows:
Sense HAT (B) | STM32 |
VCC (Note: jumper cap should jump to the corresponding position) | +5V/+3.3V |
GND | GND |
SDA | PB9 |
SCL | PB8 |
Compile and download the demo:
Open the SSCOM and set the baud rate to 115200.
Expected outcome:
How to convert this data to color? The following introduces a tool, copy it to the browser and open it.
https://www.sioe.cn/yingyong/yanse-rgb-16/
Or download:
https://files.waveshare.com/upload/0/05/Hexacolor3.7z
ADS1015 Example—AD Conversion
bcm2835
Open the terminal of Linux, compile codes, and run the example by command:
cd ADS1015/Raspberry\ Pi/bcm2835/ sudo make clean sudo make sudo ./AD
Expected result:
Press Ctrl+C to end the demo.
Wiring Pi
Open the terminal of Linux, compile codes, and run the example by command:
cd ADS1015/Raspberry\ Pi/wiringPi/ sudo make clean sudo make sudo ./AD
Expected result:
Press Ctrl+C to end the demo.
lgpio Demo
Enter the Linux terminal and input the following commands:
cd ADS1015/Raspberry\ Pi/lgpio/ sudo make clean sudo make sudo ./AD
Expected result:
Press Ctrl+C to end the demo.
Python
Open the terminal of Linux, compile codes, and run the example by command:
cd ADS1015/Raspberry\ Pi/python/ sudo python3 AD.py
Expected result:
Press Ctrl+C to end the demo.
VisionFive2 Demo
Enter the Linux terminal and execute the following commands in the terminal:
cd ADS1015/VisionFive2 python3 AD.py
Press Ctrl+C to end the demo.
STM32
This demo is based on the XNUCLEO-F103RB development board and outputs data through serial port 2.
The connection is as follows:
Compile and download the program:
Open the serial port assistant and set the baud rate to 115200.
Resources
Document
Demo code
Datasheet
FAQ
|
|
|
|
|
|
|
Support
Technical Support
If you need technical support or have any feedback/review, please click the Submit Now button to submit a ticket, Our support team will check and reply to you within 1 to 2 working days. Please be patient as we make every effort to help you to resolve the issue.
Working Time: 9 AM - 6 AM GMT+8 (Monday to Friday)