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： ESP32-C6 LCD Development Board 1.3 inch Display 1.3inch Screen ST7789 240x240 Mini TV SD-Port QST LVGL For Arduino ESP32-S3 Development Board 4 inch LCD TouchScreen Display 480x480 RS485 /SHT20 /Relay For Arduino LVGL 86 TVbox Raspberry Pi 5 PCIe to USB3 HUB Double 2.5G ETH RJ45 and M.2 NVMe SSD PI5 Expansion board HAT+ Jetson Orin NX Industrial-grade isolated 4-way RS485 hub repeater One RS485 TO Four RS485 Rasperry Pico 2 RP2350 7.3 inch e-Paper Ink Display E6 Full Color Electronic PhotoPainter 800x480 For Calendar/Quotes/Paintings/Posters ESP32-S3 GEEK Development Board 7inch Round LCD HDMI Capacitive 7 inch Touchscreen Display 1080x1080 For Raspberry Pi/Jetson Nano/mini PC Luckfox Pico ESP32 S3 5 inch LCD Development Board 800x480 TouchScreen Display TVBOX LVGL HMI Sensor CAN RS485 ESP32-C3 1.47 inch LCD Display Development Board 1.47inch Screen SD 172×320 Raspberry Pi 5 Gen3 Raspberry Pi 5 Finger Vein Scanner Module (A) Cortex M4F UART 3.3V TTL UL94-5VB IP56 Better Than Fingerprint Recognition Milk-V Duo HUB ESP32 Google Dinosaur game ESP32-C3FN4 ESP32 C3 Round LCD Development Board Electronic EYE 0.71 inch Display Watch Screen GC9A01 160x160 Retail electronic Labe Raspberry Pi Game

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： Serial UART Magnetic Encoder Bus Servo ST3025 TTL 40KG.CM High Precision Large Torque ESP32 S3 AI Voice Chat Robot 1.54inch Development Board with 1.54 inch LCD Display Screen Deepseek Milk V Duo Raspberry Pi Compute Module 5 CM5 Official Original IO Board ESP32 MLX90640 E-Paper RP2040 Microcontroller Raspberry Pi 14 inch TypeC Monitor DisplayScreen Computer PC 1920x1200 Jetson Nano 4G module Raspberry Pi 5 Audio Grove Base IO HAT SeeedStudio-XIAO Battery Management Raspberry Pi 3D Display SpotPear Raspberry Pi RV1103 SC3336 Electronic EYE 0.71inch Round Double LCD Display Screen Arduino Raspberry Pi ESP32 Pico STM32 CM4S08032 Compute Module PoE Board Raspberry Pi CM4S CM3 3Lite 3 3+Lite PoE SpeedyBee F405 WING APP Flight Controller FC ArduPilot INAV Drone ESP32-C5 3.5inch LCD For Xiaozhi AI Development Board Display 320×480 3.5 inch TouchScreen Camera MG996R Servo Metal Gear High Torque 9/11kg Rotate 180Angle