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： SpotPear Pi5-Active-Cooler-C Rounded LCD Industrial UART USB TO 8CH RS485 Isolated Converter For 35mm standard rail and stacked installation ESP32 S3 Development Board 1.75 inch AMOLED Display TouchScreen SD slot 6-axis sensor Xiaozhi AI Deepseek Raspberry Pi 5 PCIe TO Gigabit ETH USB3.2 HAT+ USB HUB Raspberry Pi Buzzer Milk-V Duo Raspberry Pi 0.96inch LCD Sipeed Lichee Tang Nano 20K FPGA RISCV Open-Source Retro-Game Linux MINI Development Board GW2AR-18 Raspberry Pi 10.85 inch e-Paper ink screen display black white 1360×480 For Arduino /Jetson /STM32 /ESP32 Jetson Nano Integrated capacitive fingerprint module Cortex core UART serial port High-precision fingerprint recognition ESP32 C3 LCD development board LCC-14 ESP32-S3 Round Screen BG95-M3-Zero QuecPython EVB development support LTE/EGPRS and GNSS LuckFox Pico UART Rasperry Pico 2 RP2350 7.3 inch e-Paper Ink Display E6 Full Color Electronic PhotoPainter 800x480 For Calendar/Quotes/Paintings/Posters

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： Digital Photo Frames 7.5 inch Passive NFC e-Paper BW Display E-ink Screen No Need Battery Wireless Powered WS2812B RGB Matrix SeeedStudio-XIAO ESP32 S3 4.3inch LCD 800x480 Captive TouchScreen Display Board LVGL Sensor CAN I2C RS485 Secondary Screen Raspberry Pi Pico Display Luckfox Pico Zero RV1106G3 SD WiFi6 Audio eMMC-8G RAM-256MB Raspberry Pi 64MP Camera Raspberry Pi RTC WatchDog EC200U EU AU C4-P01 LTE Cat-1 Bluetooth GNSS CM4S08032 Compute Module PoE Board Raspberry Pi CM4S CM3 3Lite 3 3+Lite PoE Pi5 Fan CSI Camera Raspberry Pi Zero V1.3 Raspberry Pi IR Thermal Imagi Raspberry Pi Compute Module 5 CM5 IO Board IMX477 IR CUT Camera12.3MP Jetson Nano Orin Raspberry Pi Raspberry Pi Pico 2 RP2350 Zero LPWA LoRa Antenna 2dBi gain 433/868MHz MAX9296 GMSL Camera 2-Ch High-Speed Low-Latency Transmission Jetson Orin Nano/NX