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Use Raspberry Pi and PIR motion sensor to make IOT home alarm system

Objective In this project, we will use Raspberry Pi and motion sensor to make a home intruder alarm system. Which can send alarm message through internet and email. Perquisite : You should have registered a mosquitto MQTT broker server. There

Posted in Raspberry Pi Project

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

Overview Generally speaking, motion sensor is made of thermoelectric sensor, and it can detect body motion. The motion sensor module generally uses the BISS0001 ("Micro Power PIR Motion Detector IC") to convert the analog signal from the sensor to digital

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

1 RAMPS 1.4 Schematic: 2.Insert jumpers to RAMPS 1.4 The jumpers (in the plastic bag below) control the precision of the motor movement. To have the most precise stepping (1/16micro stepping), insert three jumpers to each of the areas outlined

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