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Author: BigJay (page 2 of 3)

Wifi temperature logger aka “NodeMcu Arduino IDE MQTT DHT11 Node”. Part 3 (Node Red and dashboard)

In previous two tutorials we learned how to set up ESP8266 with arduino IDE as temperature sensing node. Now we gonna look Node Red side of things and will create dashboard for displaying the data.

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Wifi temperature logger aka “NodeMcu Arduino IDE MQTT DHT11 Node”. Part 2 (ESP8266 sketch)

In this part of the tutorial we will look closer the esp8266 sketch that will send the temperature info to our server.

 

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Wifi temperature logger aka “NodeMcu Arduino IDE MQTT DHT11 Node”. Part 1 (ESP8266 and Arduino IDE)

In this small series I will show you how to use Arduino IDE with ESP8266 and log your temperature data to the MySql server trough Node Red. And for data transmission we will use MQTT.

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Recovering broken Raspberry Pi filesystem

Well F.. Nothing works. Hmm lets reboot. Nothing. Maybe its issue with external hard drive. Lets take the RPi Sd card and change the fstab file manually from different computer. While trying to open the /etc/ folder I’m greeted with following error:

Boom. Congrats you won broken filesystem. “Structure needs cleaning”.

So here is how you can maybe fix it.

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Raspberri Pi Torrent box


Finally we can set up our torrent box. For you know.. downloading and sharing Linux distros and open sourced software.

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Setting up SSHFS on Raspberry Pi

This will be tutorial about how to set up RPi torrent box… oh wait i need to mount external drive ….okey then…. This WILL be tutorial about how to mount usb drive on RPi …. Wait I need to transfer large files between RPi and my PC …….fuuuuuuuu…  Fine  it will be tutorial about how to set up SSHFS on Raspberry Pi.
I prefer SSHFS over samba because its pain to set up samba on RPi(not really but i’m lazy) and yes if you want connect many windows or android devices its better solution but for a linux to linux file transfer it super easy and quick to set up, another downside is speed. But because I don’t transfer 100 gig files my 10MB/s is adequate.But hey the SSHFS is encrypted which is nice.
Anyway…

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Installing MQTT Broker(Mosquitto) on Raspberry Pi

Eclipse Mosquitto™ is an open source (EPL/EDL licensed) message broker that implements the MQTT protocol. MQTT provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for “Internet of Things” messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers like the Arduino. And I will show you how to install Mosquitto to RaspberryPi

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How To Create a New User and Grant Permissions in MySQL

In our previous post we installed MySQL server and PhpMyAdmin.
Now we gonna add new user and tables to our database using PhpMyAdmin.

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Installing Node-Red to Jessie Lite Quick Tutorial

Quick tutorial how to install Node-Red with screenshots.

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Raspberry Pi LAMP , FTP , PhpMyAdmin setup.

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