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： Omni-Directional Lidar spotpear Electronic EYE 0.71inch Round LCD Display Screen For Arduino Raspberry Pi ESP32 Pico STM32 ESP32 S3 Development Board 2.8 inch Round LCD Display 480x480 QMI8658 Sensor / MIC / SD /MP3 Audio /Battery Port LVGL/HMI For Arduino DeepSeek AI Voice Chat ESP32 C6 Development Board 1.69 inch LCD Display 240x280 1.69inch TouchScreen Programmable Watch Industrial Modbus RTU RS485 4-ch Relay With isolation protection and guide rail Raspberry Pi 5 PCIe to M.2 Pi5 Raspberry Pi CM5 Compute Module 5 Dual Gigabit Ethernet RJ45 Expansion IO Base Board development board ESP32 1.44inch LCD Raspberry Pi 1.54inch LCD Bookworm-Desktop Display and Touch Milk-V Duo MPS2280 POE Raspberry Pi 5 PCIe to M.2 NVMe SSD Adapter Board HAT Pi5 2280/2242/2230 CAN Analyzer 5inch Raspberry Pi Touch Display 2 5-inch Official Original 720x1280 LCD DSI/MIPI Screen Arducam OLED-LCD-HAT-A Raspberry Pi 5 USB Audio Raspberry Pi 64MP Camera

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 5 PCIe to M.2 NVMe SSD Raspber Pi 5 27W Power 4inch Round LCD HDMI Capacitive touchscreen display Raspberry Pi Jetson Nano mini PC 720x720 Raspberry Pi RP2040 1.14inch LCD Raspberry Pi 10.85 inch e-Paper ink screen display black white 1360×480 For Arduino /Jetson /STM32 /ESP32 Raspberry Pi 5 inch LCD 720x1280 Capacitive TouchScreen Display Raspberry Pi 5 Aluminium Case Raspberry Pi 5 Raspberry Pi 5 Active Cooler Silver ESP32 S3 2.8 inch Round LCD Display 480x480 QMI8658 Gyro Sensor Micro SD MP3 Speaker audio Battery LVGL HMI Arduino OLED-LCD-HAT-A Raspberry Pi X873 Raspberry Pi 4 USB M.2 NVMe SSD NAS Raspberry Pi 8 inch DSI LCD (C) Display MIPI 1280×800 Capacitive TouchScreen Raspberry Pi LCD Display Screen 1.3inch LCD with Game Button AND Audio Buzzer For Zero 2W / 3B / 4B / PI5 / RP2040-PiZero DeepSeek AI Voice Chat Robot BOX ESP32-S3 Development Board 3.5 inch QSPI LCD N16R8 Touchscreen Display 6-Axis /Camera /SD Milk-V Duo Milk-V Duo RP2040 Microcontroller M12 High Resolution Lens 12MP 113 2.7mm Raspberry Pi High Quality Camera M12