Pi ALL GPIO TEST BOARD (B) User Guide

PCF8591

Test image version: 2022-04-04-raspios-bullseye-armhf.img Raspberry pi 4B

Prepare

Enable I2C

sudo nano /boot/config.txt

Ensure that I2C is on, and then restart the system.

sudo reboot

After restart, address 48 can be detected by I2C address detection command.

i2cdetect -y 1

connection

Ensure that jumper caps are connected to PCF.

Running code

Download sample code pcf8591

cd pcf8591/

sudo python pcf8591_adc.py

Phenomenon

4-channel print AD value

DAC

Running code

sudo python pcf8591_dac.py

Phenomenon

The LED lamp changes with the output value of DAC, and the brightness changes.

LED

Prepare

connection
Make sure that the jumper caps are connected to the LED.

Running code

Download GPIO_Test.py to raspberry pi.

sudo python GPIO_Test.py
Phenomenon
The power indicator LED is always on, and the GPIO connection LED is turned on in turn, and then turned off in turn, continuously circulating.

PCF8591：
https://cdn.static.spotpear.com/uploads/picture/learn/raspberry-pi/raspberry-pi-hats/pi-sensor-board/pcf8591-220714.tar.gz

LED：
GPIO_Test.py

Schematic diagram：
https://cdn.static.spotpear.com/uploads/picture/learn/raspberry-pi/raspberry-pi-hats/rpi-all-gpio-test-board-b/rpi-all-gpio-test-board-b-14.png

To：

Dear Customers, There may be a lag of several hours before we could process your order, depending on the time difference between your location and ours. Sincerely hoping your understanding!

Email(support)

services01@spotpear.com

TAG： Raspberry Pi 5 8 inch DSI LCD Captive TouchScreen MIPI Display 1280x800 Industrial One-Body Tablet PC With 5MP Front Camera Pi5 Raspberry Pi PCM5122 I2S DAC HIFI Sound Card DAC Audio expansion Board Free-Driver For PI5/PI4/Zero Raspberry Pi IR Thermal Imagi Industrial Grade Isolated USB TO RS232/485 (B) Serial UART Converter FT232RNL For Wall/Rail-Mount ESP32-S3 Industrial Modbus RTU RS485 4-ch Relay With isolation protection and guide rail Milk V Duo UART ESP32 Development Board WiFi+Bluetooth Ultra Low Power Dual Core ESP 32S ESP 32 Similar ESP8266 DDSM400 Direct Drive Servo Motor All-In-One Design Hub Serial -LIN Bus Motor PI5 Raspberry Pi 7 inch QLED Quantum Dot Display 1024x600 Capacitive Touchscreen For Computer PC/Jetson/Game Raspberry Pi 5 Windows Environment User Guide LuckFox Pico Mini ESP32 1.9inch LCD SpotPear ESP32-C6 AI Voice Chat Robot For Xiaozhi 1.8 inch AMOLED Development Board 1.8inch TouchScreen Deepseek Serial UART Bus Servo ST3020 TTL 25KG.CM Magnetic-Encoder High precision and Large torque AURORA AI Laser Radar And Dual Eye Camera IMU Integrated Positioning Map For Android/ROS+RoboStudio

Price：

$14.9

Model：

Pi-ALL-GPIO-TEST-BOARD-(B)

Raspberry Pi PCF8591 expansion board LED GPIO IO test ADC/DCA Sensor Beginner board

TAG： Raspberry Pi Pico 2 RP2350 GEEK 1.14 inch LCD ESP32 S3 1.43 inch AMOLED Display Screen Arduino LVGL SD-Port QMI8658C 6-Axis Sensor RoArm M2 4 DOF High Torque Serial Bus Servo ROS2 WIFI ESP NOW QMI8658C ESP32 Round screen Raspberry Pi CM4 Kit 7-inch Touch Screen All-in-one Kit 5-megapixel Camera Aluminum Alloy Case Raspberry Pi USB Camera 5MP OS05A10 Distortion-Free USB 2.0 For Jeston RDK ESP32-S3 AI 1.54-inch e-Paper Ink Screen 1.54inch Display AIoT Development Board Deepseek Core3566104032 Arduino Atmega328P Nano Raspberry Pi PICO ESP32-C6 Development Board SpotPear NVIDIA Raspberry Pi UPS UART Serial Server Raspberry Pi 5 Display Cable Raspberry Pi 5 PCIe FFC Standard PCIe Slot Raspberry Pi 5 8 inch DSI LCD Captive TouchScreen MIPI Display 1280x800 X1005 Raspberry Pi 5 PCIe M.2 NVMe Dual SSD Pi5 Double 2230 2242 2260 2280 Spotpear