Meter PZEM-004 + Arduino Nano Modbus RTU (RS232) & Platform IoT Node-RED

Originally this test is performed in June 2018 in less than one year, for reasons of availability do not publish, technically just missing the documentation, then I will present the results, well they say there is better late than never. In this opportunity our PZEM-004 meter or it is also possible with our PZEM-004T communication…

Complete installation Database MySQL & MariaDB in Raspberry Pi 3 B / B +

Among the most popular databases this MySQL has 2 types of licensing General public license and commercial license, it is considered the most popular open source database in the world is included in almost all hosting very used by WordPress, is also included as a component of development in LAMP and XAMMP. Previously, make a…

Complete Installation Node-RED in Raspberry Pi

In this opportunity I will realize the installation of Node-RED in my Raspberry Pi, in case you have not heard about Node-RED, it is a tool for programming and connection of applications for the IoT or Internet of things, integrates protocols, API’S, hardware and software, has a web IDE for connection of nodes in flow mode.    …

Meter PZEM-004 + ESP8266 & Platform IoT Node-RED & Modbus TCP/IP

In this opportunity we will integrate our active power meter or electric consumption,Pzem-004 – Peacefair with the IoT Node-RED integration platform used in previous tutorials, we will use an ESP8266 module configured as Modbus TCP / IP slave, later we will visualize the measurements in Node- RED Dashboard to visualize the 4 available variables such as…

ESP8266 & Public MQTT Broker mosquitto.org & Node-RED

In the last tests we have taken the MQTT protocol since it has taken great strength the last few years and we think it is thanks to its simplicity, security, practicality and very lightweight projects IoT and M2M applications. Thanks to the contribution of developers and developers of MQTT applications, there are public MQTT Internet…

FRED front-end Node-RED in the cloud

In previous tutorials we have tested with the Node-RED platform a visual wiring tool or connection of technologies applications devices and gadgets created by IBM much used for the Internet of things and this time we will try it in FRED. In previous tests Node-RED was installed locally in my case a server with Lubuntu…