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： Raspberry Pi Pico 2 RP2350B 1.46 inch Round LCD Touch Display 412x412 HMI LVGL QMI8658 6-axis 65K Colors NVIDIA Jetson Orin Nano Developer Kit Official Original 8GB AI 40Tops For Embedded and Edge Systems Magnetic Encoder Servo Motor 45KG.CM 24V 360° RS485 High Precision And Large Torque ESP32-S3 1.69inch LCD Display With QST Attitude Gyro Sensor QMI8658C For Arduino Python Dual-MCU-Board Raspberry Pi IR Thermal Imaging Camera ESP32 S3 AI 4.3inch (C) Industrial Development Board 4.3 inch TouchScreen Display Sensor CAN I2C RS485 DeepSeek luckfox-pico-ultra-w-gpio Use IO BASE MINI Board spotpear Jetson Orin Uninterruptible Power C For Simultaneously Charging and Discharging Computer USB Monitor Screen Raspberry Pi CSI Camera Raspberry Pi 5 POE PCIe To M.2 E KEY NGFF WIFI7 WIFI6 For BE200/AX210/AX200/RTL8822CE RP2040-PiZero LuckFox Pico Camera Raspberry Pi 5 inch DSI Display MIPI LCD (C) Capacitive TouchScreen 1024x600 Raspberry Pi 5 Official Original PCIe to M.2 NVMe SSD Raspberry Pi M.2 HAT+ Board For Pi5 X1300 X1300-A2 Raspberry Pi 5 HDMI to CSI-2 Shield 1080P@60fps & Audio & Video Also

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： FT2232HL USB RS485 Industrial Grade Isolated Converter UART 2CH Sipeed MaixCAM Pro AI RISC-V YOLO AI Camera SG2002 Linux OpenCV Raspberry Pi 5 PoE MINI HAT (H) 5V/5A Power over RJ45 Ethernet 802.3af/at Moudle for Pi5/CM5 Industrial USB TO 8CH RS485 Isolated Converter Banana Pi Raspberry Pi 4 Camera SpotPear Milk-V Duo HUB Raspberry Pi 5 PCIe Gigabit Ethernet RJ45 RTL8111H M.2_M_KEY 2230/2242/2260/2280 NVMe SSD spotpear Industrial Modbus RS485 RTU 8-ch Magnetic Latching Relay Module (C) With Digital Input UNO R4 Minima Pan-Tilt Kit SpotPear Milk-V Duo SG2002 Raspberry Pi 64MP Camera Raspberry Pi 5 case Raspberry Pi 5 NVMe R7FA4 PLUS B Development Board Based on R7FA4M1AB3CFM Compatible with Arduino UNO R4 WiFi Raspberry Pi 5 ICE Tower Higher RGB Fan Pi5 CPU Cooler U-Shaped Copper Tube Fins