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 5 RK3566 Spotpear raw display Raspberry Pi PICO LoRa-HF EVAL-ADXL354CZ EVAL BOARD ESP32 S3 Development Board 2.8 inch B LCD 2.8inch Display 480x640 TouchScreen QMI8658 Sensor / Battery Port LVGL/HMI For Arduino Raspberry Pi 21.5inch FHD LCD 1080x1920 Capacitive TouchScreen Display For Raspberry Pi/Jetson Nano/ Luckfox Pico PLUS ESP32 C3 Raspberry Pi 5 DSI Bookworm ESP32-S3 Development Board 4 inch LCD TouchScreen Display 480x480 RS485 /SHT20 /Relay For Arduino LVGL 86 TVbox ESP32 Raspberry Pi 5 PCIe to M.2 NVMe SSD Adapter Board HAT Screen Pi5 Double 2280 Raspberry Pi 5 TTL Raspberry Pi 5 Pure-Copper Cooler USB TO TTL Mini FT232 UART Communication Converter Original FT232RNL RTL8723 WIFI SDIO Expansion Module Board For Luckfox Pico Mini B /Luckfox Pico Plus /Luckfox Pico Pro /Luckfox Pico Max

Pi ALL GPIO TEST BOARD (B) User Guide

PCF8591

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.

To：

Email(support)

Raspberry Pi PCF8591 expansion board LED GPIO IO test ADC/DCA Sensor Beginner board

Pi ALL GPIO TEST BOARD (B) User Guide

PCF8591

LED

Prepare

connectionMake sure that the jumper caps are connected to the LED.

Running codeDownload GPIO_Test.py to raspberry pi.sudo python GPIO_Test.pyPhenomenonThe power indicator LED is always on, and the GPIO connection LED is turned on in turn, and then turned off in turn, continuously circulating.

To：

Email(support)

Raspberry Pi PCF8591 expansion board LED GPIO IO test ADC/DCA Sensor Beginner board

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.