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Start programming with Node Js and Johnny-Five: IoT and robotics based on Arduino, Raspberry Pi, Orange Pi

Johnny-Five is an open source Javascript library that allows the rapid and easy development of connected objects or small robotic projects ...

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Node-RED + MQTT + ESP8266: how to drive an articulated PTZ system in WiFi

We continue our series of articles on remote control of the actuator and more particularly the PTZ (Pan-Tilt) articulated systems. In the ...

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Orange Pi: test of the OPI.GPIO package for Node-Red (node-red-contrib-opi-gpio)

The libraries that support the Orange Pi GPIO are growing smoothly. Today, I suggest you try the package node-red-contrib-opi-gpio for ...

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Cayenne IoT + ESP8266: driving a mini kit Pan-Tilt FPV SG90 in WiFi with a smartphone or tablet

In this new tutorial on Cayenne IoT, we will learn how to control an articulated Pan-Tilt PTZ SG90 system in WiFi. In the previous ...

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Orange Pi (Armbian): replace the GPIO by an Arduino/Firmata, Node-RED and Johnny-Five

In this tutorial, we will replace the GPIO of the Orange Pi by an Arduino running Firmata firmware. To drive it, we will use Node-RED with ...

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Install Java 8 on Armbian (Orange Pi Lite or higher)

Here is a quick tutorial that explains how to install java 8 on Armbian. There are many tutorials on the internet but often versions are ...

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Driving the GPIO of the ESP8266 (Web Server) from Domoticz to TCP/IP Wireless – Part 2

We continue today the tutorial dedicated to the exchange of data between Domoticz and an ESP8266 by HTTP request and more particularly how ...

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How to build a RFLink 433MHz radio smarthome gateway for €10.50. Test with Domoticz

RFLink is an open source project that allows to realize a gateway between a home automation software and home automation ...

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ESP8266 (Web Client): Sending Data to Domoticz in TCP/IP Wireless (API/JSON) – Part 1

In this tutorial, we will use the ESP8266Client and ESP8266HTTPClient libraries to implement TCP/IP communication between and an ESP8266 ...

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Orange Pi (Armbian): driving the camera in Python with OpenCV

In the previous tutorial, we saw how to drive (display the live image, record a snapshot and a video clip using the keyboard) on a Raspberry Pi under Raspbian. ...

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ESP8266 (Web Server – Part 2): Interaction between Arduino code and HTML interface

Here is the second part of the tutorials devoted to the creation of an HTML interface stored in the SPIFFS zone of an ESP8266 functioning ...

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ESP8266. Understand the Arduino code of a web server with HTML interface

The ESP8266 can be programmed as a classic Arduino but its main interest is its Wi-Fi connection, which allows it to publish data to a server or ...

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Getting start with MQTT Mosquitto Broker on Raspberry Pi, Windows, macOS and Linux [update]

Mosquitto is an Open Source MQTT (Broker) server that can be installed on a Raspberry Pi (but also on other platforms) to facilitate communication ...

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Orange Pi (Armbian): control the camera in Python with OpenCV

In the previous tutorial, we saw how to drive (display the live image, record a snapshot and a video clip using the keyboard) on a Raspberry Pi under Raspbian. ...

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Picamera (version 1.9): control the Raspberry Pi camera in Python

Since its release, the Picamera library which allows to control and to exploit the camera of Raspberry Pi has evolved a lot. In this ...

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