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 4.26 inch e-Paper link (G) RYBW 800x480 For Arduino / Jetson / STM32 /ESP32 Milk V Raspberry Pi LCD display screen 1.3inch ST7789 with Game Button A ESP32-C3 1.47 inch LCD Display Development Board 1.47inch Screen SD 172×320 SpotPear Industrial Isolated USB TO 4CH RS485 (B) Converter UART CH344L For Wall/Rail-Mount Raspberry Pi Pico 2 RP2350 1.8 inch AMOLED Development Board Display 368×448 TouchScreen Programmable Watch QSPI Raspberry Pi 5 PCIe to USB3 HUB Double 2.5G ETH RJ45 and M.2 NVMe SSD PI5 Expansion board HAT+ ESP32 S3 Development Board 1.75 inch AMOLED Display TouchScreen SD slot 6-axis sensor Xiaozhi AI Deepseek ESP32-P4-WIFI6 3.5inch LCD Display AI Development Board 320×480 3.5 inch TouchScreen Deepseek Raspberry Pi 0.85inch LCD RP2040-Keyboard-3 7inch-USB-Monitor user guide ESP32 1.54inch OLED RS485 TO Relay MiniPCIe Interface 2 CH CAN Card USB CAN Multiple Protection Circuits For Linux/Windows PI5 Pi5-Pcie-Fish-Boar Raspberry Pi display ESP32 1.5inch LCD

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： MP2.5G Raspberry Pi 5 PCIe 2.5G Ethernet Pi5 RTL8125 Raspberry Pi Screen Arducam Raspberry Pi WatchDog RV1106 SC3336 Raspber Pi 5 PD Power Milk-V RJ45 Milk-V Duo Distributor Raspberry Pi Zero UPS 26650 Li-Battery Raspberry Pi 5 Model - 2GB / 4GB / 8GB / 16GB RAM ESP32-S3 Industrial Grade Dual Channel CAN Relay IoT Device Raspberry Pi 1.54inch OLED Motor Testing Module Raspberry Pi 5 PCIe M.2 NVMe SSD Pi5 2280-2242 2230 X1002 Raspberry Pi 5 PCIe to M.2 NVMe SSD ESP32 S3 Round 1.5 inch OLED TouchScreen Smart Knob Display 0.96inch Transparent OLED 128×64 SSD1312 For Arduino/Raspberry Pi /ESP32 /STM32 ESP32-H2-MINI-1-N4 Raspberry Pi 7inch DSI LCD B Display MIPI IPS 800x480 Capacitive TouchScreen MPW2.5G Raspberry Pi 5 PCIe WiFi 7 2.5G Ethernet RJ45 RTL8125 WiFi7 WiFi6 WiFi5