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： DeepsSeek XiaoZhi AI Voice Chat ESP32-S3 1.54 inch LCD Kit N16R8 WROOM-1-N16R8 DevKitC-1 Development Board SpotPear A7670E LTE Cat-1 HAT for Raspberry Pi Multi Band 2G GSM / GPRS LBS CAN FD Analyzer ESP32 S3 5 inch LCD Development Board 800x480 TouchScreen Display TVBOX LVGL HMI Sensor CAN RS485 Raspberry Pi 5 5V5A ESP32 S3 Development Board 2.41 inch AMOLED Display 600x450 TouchScreen For Arduino LVGL With SD-Port/ QMI8658C 6-Axis Sensor Raspberry Pi 3 display HAT MiniPCIe Interface 2 CH CAN Card USB CAN Multiple Protection Circuits For Linux/Windows ISX031C GMSL Camera H100 Image Sensor IP67 protection rating For Jetson Orin And MAX9296 GMSL camera Raspberry Pi Display 2.8inch Capacitive TouchScreen LCD Display ST7789 CST328 240x320 For Arduino/Raspberry Pi/ESP32/Pico ESP32 ST7789 configuration Arduino Thermal imaging camera SpotPear USB to UART Sipeed-Lichee-Tang-Nano-FPGA-Series-IDE-Install ESP32 S3 Development Board 1.85 inch Round LCD Display 360&times;360 QMI8658 Sensor / MIC / SD /MP3 Audio /Battery Port LVGL/HMI For Arduino Raspberry pi Pico development board RP2040 Core A Based On Official RP2040 Dual Core Processor spotpear

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： USB Monitor Display Raspberry Pi 5 PCIe Spotpear ESP32 S3 Round 2.1 inch LCD Knob Rotary Display Raspberry Pi Pico 2 RP2350 USB A Development Board Raspberry Pi Starlight Camera IR-CUT IMX462 (A) Sensor 2MP 90 Degree Raspberry Pi 3 LCD HAT Type-C Power Adapter Computer Secondary Screen Raspberry Pi Display Jetson Orin Uninterruptible Power C Simultaneously Charging and Discharging Industrial Modbus RTU RS485 8-ch 30A High Current Relay Module (E) With Digital Input ESP32-S3 1.28inch Round LCD Display Screen GC9A01A QMI8658A Case Arduino Atmega328P Raspberry Pi 5 PCIe to M.2 NVMe SSD Raspberry Pi display Computer USB Secondary Screen Raspberry Pi Refractive Prism NVIDIA Milk V Duo UART