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： Milk-V Duo ESP32 Development Board C3 1.28 inch Round Rotary LCD Smart Screen 1.28inch Knob Display 240x240 LVGL for Arduino ESP32-C6 AI Voice Chat Robot For Xiaozhi 1.8 inch AMOLED Development Board 1.8inch TouchScreen Deepseek Raspberry Pi Raspberry Pi Pico RP2040-LCD-0.96 User Guide AURORA AI Laser Radar And Dual Eye Camera IMU Integrated Positioning Map For Android/ROS+RoboStudio Arduino 0.85inch LCD RP2040 1.5inch LCD Raspberry Pi Industrial 10.1 inch DSI LCD HMI TouchScreen MIPI Display 1280x800 10.1inch One-Body PC With Front Camera For Pi 4/5 ESP32 C3 Luckfox Pico ST7789 Raspberry Pi 5.83 inch e-Paper link (G) RYBW 800x480 For Arduino / Jetson / STM32 /ESP32 0.96inch1.3inch1.44inch1.8inch LCD Display Screen Round Arduino Raspberry Pi ESP32 Pico STM32 ESP32-C5 WIFI6 Development Board ESP32-C5-WROOM-1 N16R4/N16R8 Code E-Paper Industrial Raspberry Pi LCD Display Screen 1.3inch LCD with Game Button AND Audio Buzzer For Zero 2W / 3B / 4B / PI5 / RP2040-PiZero Dual-MCU-Board ESP32 C3 Round LCD Development Board Electronic EYE 0.71 inch Display Watch Screen GC9A01 160x160

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： Finger Vein Scanner Module (B) Cortex M4F UART serial port EAL4+ security certification qualification Raspberry Pi Industrial grade isolated USB to RS232/485 converter supports USB to 2-way RS232 + 2-way RS232/485 original FT4232HL M12 High Resolution Lens 14MP 2.72mm For Raspberry Pi High Quality HQ Camera M12 LuckFox Pico UART PoE HAT Flipper Zero WiFi multiboard NRF24+ESP32 Arduino 0.85inch LCD Raspberry Pi RP2040 LoRa WiFi6 PC USB Monitor Screen Arducam CM4S08032 Compute Module PoE Board Raspberry Pi CM4S CM3 3Lite 3 3+Lite PoE Rockchip W5500 Ethernet Module FT4232HL USB TTL RS232 Industrial UART 4-Ch UART X1011 Raspberry Pi 5 PCIe M.2 NVMe 4-Ports SSD Pi5 Four-Times 2280 Digital trinket DDSM115 Servo Motor All-In-One Hub RS485 Raspberry Pi Transparent LCD