SKU_DFR0918_Raspberry_Pi_GPIO_Terminal_Block

Introduction

This terminal block expansion hat for Raspberry Pi 4B offers stable and reliable connections for your projects.
All GPIO pins are broken out to terminal blocks. The terminal block is labeled with high-quality color silkscreens, clear and durable. Besides, it has onboard level indication LEDs for corresponding pins below the blocks, which allows users to directly view the pin status when operating GPIO so as to conveniently do testing, debugging, and post-maintenance.

Features

Clear colorful silkscreen
Port level status indicators
Multiple GND, 3.3V, and 5V ports broken out for simple wiring

Parameter

Dimension Diagram

Board Overview

Specification

GPIO x 28
3.3V Port x 4
5V Port x 4
GND Port x 12
Dimensions (Excluding Package): 65x56.5mm/2.56x2.22"
Terminal Block Type: 127S-3.81mm
Number of Silkscreen Color: 6
LED Indicator x32
LED Indicator Color: Blue
Compatible with Raspberry Pi 4B/3B/Zero

Description

The on-board LED indicators of CE0, CE1, SDA1, SCL1, RXD, TXD, I022, IO21, SDA0, SCL0, 3.3V and 5V are default to be on.

Raspberry Pi Pin Description

This product adopts BCM pin mapping labeling.

Tutorial

1. GPIO Example

This example uses the on-board LED for LED blinking demonstration.

import time
from traceback import print_list
import RPi.GPIO as GPIO

pin_list=[4,27,21,13,26,23,22,12,20,19,24,25,16,5,6,17,18,10,9,11,8]
GPIO.setmode(GPIO.BCM)
GPIO.setup(pin_list,GPIO.OUT)
GPIO.setwarnings(False)

while True:
  GPIO.outp(pin_list,GPIO.LOW)
  time.sleep(0.5)
  GPIO.output(pin_list,GPIO.HIGH)
  time.sleep(0.5)

2. I2C Example

This example uses the SEN0405 acceleration sensor for demonstration. Click LIS library download address to download the sample codes of the acceleration sensor. Select the program in the example -> LIS2DW12 folder.

Connection Diagram:

#include <DFRobot_LIS2DW12.h>

DFRobot_LIS2DW12_I2C acce;

void setup(void){

  Serial.begin(9600);
  while(!acce.begin()){
     Serial.println("Communication failed, check the connection and I2C address setting when using I2C communication.");
     delay(1000);
  }
  Serial.print("chip id : ");
  Serial.println(acce.getID(),HEX);
  acce.softReset();
  acce.continRefresh(true);
  acce.setDataRate(DFRobot_LIS2DW12::eRate_50hz);
  acce.setRange(DFRobot_LIS2DW12::e2_g);
  acce.setFilterPath(DFRobot_LIS2DW12::eLPF);
  acce.setFilterBandwidth(DFRobot_LIS2DW12::eRateDiv_4);
  acce.setPowerMode(DFRobot_LIS2DW12::eContLowPwrLowNoise2_14bit);
  Serial.print("Acceleration:\n");
  delay(100);
}

void loop(void){
    Serial.print("x: ");
    Serial.print(acce.readAccX());
    Serial.print(" mg \ty: ");
    Serial.print(acce.readAccY());
    Serial.print(" mg \tz: ");
    Serial.print(acce.readAccZ());
    Serial.println(" mg");
    delay(300);
}

Result:

3. SPI Example

This example uses the SEN0405 acceleration sensor for demonstration.