Blog Archives

How to install mosquitto MQTT server on linux

  Step 1) Update mosquitto repository run bash command: sudo apt-add-repository ppa:mosquitto-dev/mosquitto-ppa (if above apt-add-repository command does not work, you might need install software-properties-common Package by runing following command first: sudo apt-get install software-properties-common python-software-properties  ) Step 2)install mosquitto run bash

Posted in Tutorial & eBook

Connect Arduino to Internet via ESP-8266 WiFi module


Posted in 测试

Arduino RFID security DIY starter kit


This Arduino RFID Starter Kit is a very good do-and-learn package for starter to RFID security verification programming. With this Starter Kit, you are able to learn how RFID key and receiver works, how to use RFID system to do

Posted in Arduino/Raspi Kit

Arduino drive LM75 temperature sensor with I2C protocol


Objective: This project will use Arduino to get temperature from LM75A sensor with I2C protocol and then display it into Arduino serial window. Connection: LM75 sensor Arduino SDA A4 SCL A5 V 5V G GND Download Code from following link:

Posted in Arduino Parts & Projects

Using Raspberry Pi to drive motion sensor and turn on LED


Objective: In this project, we will use a Raspberry drive motion sensor  and LED. When motion is detected, motion sensor will send signal to Raspberry Pi GPIO port and then turn on LED. We will use C and wiringPi libary

Posted in Raspberry Pi Project

RepRap MKS BASE V1.4/ BASE1.5/GEN V1.4 Board 3D printer connection graph

MKS BASE V1.5 Connection Graph: MKS BASE V1.4 Connection Graph: How to measure V_REF value(The calculated way for maximum load current: I=V_REF/(8×RS),RS=0.1): MKS Gen V1.4 Connection Graph:

Posted in Tutorial & eBook

RepRap Ramps1.4 3D printer circuit connection graph

Posted in Tutorial & eBook

MKS Base V1.4/Base V1.5/Gen V1.4 3D printer board Marlin firmware installation guide

Posted in Tutorial & eBook

RAMPS 1.4 3D printer board Marlin firmware installation guide


Name Image Authorized Retailer 12864LCD 3D printer kit 2004LCD 3D printer kit RAMPS 1.4 is a popular control board for RepRap Prusa i3 3D compatible printer. Please take following steps to install the software in order to let your printer

Posted in Tutorial & eBook

Use Mega2560 to Drive ili 9481 3.5-inch LCD screen

Before running the program, make sure there is no pre-installed Arduino software on your computer, otherwise it might conflict with our LCD driver. Step 1: Download 9481.rar driver and unzip it into any folder with free space. You will see

Posted in Tutorial & eBook