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 S3 AI 1.75 inch Development Board with 1.75inch AMOLED Touchscreen Round Screen Deepseek Desktop Trinket ESP32-S3 ETH Camera Development Board PoE RJ45 / OV2640 OV5640 Port / W5500 / Micro-SD Compatible With Raspberry Pi Pico Size PC USB Monitor Screen MK20 Computer AI Deepseek Mechanical Voice Keyboard Linux 20x0.85inch LCD Screen Customize keys + 2.8 inch Secondary Display 1.69inch LCD TouchScreen Display 240×280 ST7789 Arduino Raspberry Pi ESP32S3 Pico STM32 ESP32-S3 ST7789 Raspberry Pi Pico 2 RP2350 1.64 inch AMOLED Development Board Display TouchScreen 280x456 QMI8658 IMU QSPI 4.26inch-e-Paper Raspberry Pi USB Global Shutter Camera 1MP OV9281 120fps Black/White 120fps also For Jeston RDK Raspberry Pi 5 User Guide Jetson Nano Expansion Board Raspberry Pi 5.83 inch e-Paper link (G) RYBW 800x480 For Arduino / Jetson / STM32 /ESP32 Raspberry Pi 5 Camera User Guide Raspberry Pi Pico 2 RP2350 3.5 inch LCD Capacitive 3.5inch TouchScreen Development Board 240x320 Display QMI8658 6-Axis /OV5640 Camera /SD Raspberry Pi Pico 2 RP2350 1.75-inch AMOLED 1.75inch Round TouchScreen Display QMI8658 6-axis GPS Jetson RTL8822CE 5GHz WiFi Wireless Bluetooth5 Card NGFF-M.2 RTL8822CE-CG Core Sipeed RISCV LicheeRV Nano Super-Mini SG2002 AI RAM-256MB Raspberry Pi 5 PCIe USB HUB 3.2 Gen1 HAT+ High Speed Pi5 JETSON-NANO-MINI

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 PD Power Raspberry Pi 24.5 inch Type C/HDMI 2K Display 24.5inch Screen 2560x1440 Computer PC Phone For Xbox/PS4/Switch Day and IR Night Vision Jetson Nano 3G module Bus Servo ESP32 UART USB ST RSBL Raspberry PI Robot Raspberry Pi 1.3inch PC Monitor Screen Raspberry Pi 5 Active Cooler CN Raspberry Pi 5inch Display 1024x600 HDMI Capacitive TouchScreen 5 inch LCD Mini PC Computer Industrial USB Gen1 HUB 4U 7~36V DC power port For Multi Systems Raspberry Pi 5 MIPI Cable Raspberry Pi 5inch Display 1024x600 HDMI Capacitive TouchScreen 5 inch LCD B Mini PC Computer Raspberry Pi 3.5 inch e-Paper link (G) RYBW 384x184 For Arduino / Jetson Nano / STM32 ESP32-C6 1.64inch AMOLED Display Development Board 280×456 1.64 inch TouchScreen DeepSeek ESP32-S3 Voice Chat Robot ESP32 GamePad Retro Game MP3 Player FC NES ADXL354C Industrial CAN FD ETH RJ45 bidirectional converter CAN2.0A/2.0B Raspberry Pi IR Thermal Imagi Raspberry Pi 5 Camera Cable