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： Dual-MCU-Board ESP32 MLX90640 Raspberry Pi 3 display HAT ADXL354C Raspberry Pi 5 RTC charge Arduino MLX90640 NVIDIA ESP32-P4 Smart 86 TV Box Development Board 4 inch 720x720 Display TouchScreen RS485 Relay Camera RJ45 ETH RS232/485/422 To CAN JETSON NANO B01 CAM-GC2083 Raspberry Pi 3D Display Raspberry Pi Raspberry Pi AF Camera Raspberry Pi 5 Box Case Ki-A PCIe to RJ45 Gigabit Ethernet All Ports To Pi's USB Side Raspberry Pi LCD ESP32 S3 LCD Development Board 1.3 inch Display 1.3inch Screen ST7789 240x240 Mini TV SD-Port QST QMI8658 Gyro Sensor LVGL For Arduino Raspberry Pi 10.1 inch DSI MIPI LCD TouchScreen Display 10.1inch 720x1280 For Luckfox Lyra RK3506/ESP32-P4/Luckfox Omni3576 Serial UART Bus Servo TTL ST3235 30KG.CM Magnetic Encoder 360° High Precision And Large Torque Install Espressif IDF Plugin Tutorial User Guide

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.