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 screen ESP32-P4-ETH RJ45 POE DSI/MIPI 10.1 inch LCD Display Touchscreen/CSI Camera/Audio Speaker AI Deepseek Raspberry Pi Pico 2 RP2350 3.5 inch LCD Capacitive 3.5inch TouchScreen Development Board 240x320 Display QMI8658 6-Axis /OV5640 Camera /SD White ESP32 S3 AI 1.54inch Development Board 1.54 inch TouchScreen Display DeepSeek LuckFox Jetson Nano 3G module Raspberry Pi 5.83 inch e-Paper link (G) RYBW 800x480 For Arduino / Jetson / STM32 /ESP32 X1012 Raspberry Pi 5 POE And PCIe to M.2 NVMe SSD Board Pi5 2280 Power over Ethernet H618 Raspberry Pi 5 NVMe 0.85inch LCD Button Mechanical Keyboard Display Screen 128x128 For Arduino /Raspberry Pi /ESP32 /RP2040 /STM32 Finger Vein Scanner Module (B) Cortex M4F UART serial port EAL4+ security certification qualification Raspberry Pi SIM7670G LTE-4G-Cat-1/GNSS/USB-HUB Expansion Board ESP32-S3 GC9A01A TTL To CAN SpotPear Electronic EYE 0.71 inch Round Double LCD Display Dual Screen For Arduino Raspberry Pi ESP32 Pico STM32 A7670E LTE Cat-1 HAT for Raspberry Pi Multi Band 2G GSM / GPRS LBS Jetson Nano PWM Fan

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： Screen Raspberry Pi RP2040 LoRa-HF Jetson Nano Cooler electronic Tag Zero LCD HAT (A) ESP32 Thermal imaging ESP32 ESP32-S3 MAX AI Camera 3.5inch LCD Dual MIC Development Board Display 320x480 3.5 inch TouchScreen Voice Interruption Object Recognition ESP32-S3 ETH Camera PoE OV2640 OV5640 Spotpear USB camera 2MP SC2210 Starlight Level Camera USB 2.0 plug and play Raspberry Pi Autofocus Camera Raspberry Pi Pico 2 RP2350 1.47 inch LCD B Display Development board RP2350A 1.47inch Screen RGB color CAN Bus Breakout Board SeeedStudio-XIAO QTPy MCP2515 SN65HVD230 Raspberry Pi DS3231 Spotpear Top-Version Luckfox Lyra Ultra RK3506B OnBoard EMMC-8GB Mic Option WiFi6 /PoE With Audio and Display Port Raspberry Pi5 Raspberry Pi 5 PD Power Raspber Pi 5 PD Power