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[Firebase] Free web

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- May 31, 2020

We can create free webhosting using firebase. This is really nice and easy. Take a look the youtube link below.

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Node-Red and MQTT on Raspberry Pi

- December 28, 2018

Node-Red MQTT on Raspberry Pi Node Red A visual tool for wiring the IoT. Gateway to The IoT. Rapidly developing popular platform device data information. To install Node-Red > bash <(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/resources/update-nodejs-and-nodered) > node-red-start After this you can access the node-red dashboard from url http://<raspberrypi ip addr>:1880 Auto Start on Reboot > sudo systemctl enable nodered.service Install MQTT Broker > npm install node-red-contrib-mqtt-broker Reference [1] Install Node-Red [2] Install node-red-contrb-mqtt-broker [3] First time mqtt-broker MQTT Publish Getting started install MQTT client > sudo pip install paho-mqtt Note: GPIO. Stands for " General Purpose Input/Output ." MQTT stands for "Message Queue Telemetry Transport"

[Version] How to check version of each application or OS

- February 01, 2020

1. CentOS Use any command: > cat /etc/os-release > hostnamectl > rpm -qa centos-release > $ uname -r 2. Node > node -v 3. NPM > npm -v 4. Angular > ng -v 5. Node package > ng -v

M5Stack ESP32

- December 25, 2018

1. use uPyCraft https://randomnerdtutorials.com/install-upycraft-ide-windows-pc-instructions/ 2. Tools > Burn Firmware - m5stack-20180516-v0.4.0.bin Connect to Putty 1. Open Putty 2. Select 'Serial' Connection 3. Port: COM7, Speed 115200 4. exec(open('./main.py').read(),globals()) M5Cloud How to make it connect to wifi 1. Burn with M5Cloud firmware https://github.com/m5stack/M5Cloud/tree/master/firmwares 2. Connect to wifi using http://192.168.4.1/ 3. Add device via http://io.m5stack.com M5 UI-Flow 1 Instruction https://medium.com/mmp-li/m5stack-with-ui-flow-b6d1a37385b0 1.1 How to burn firmware https://docs.makerfactory.io/m5stack/related-documents/burn-firmware/ 1.2 M5Burner https://github.com/m5stack/M5Stack-Firmware Arduino 1 Install Arduino IDE - [1] arduino ide - [2] arduino on vscode 2. Install ESP32 board on Arduino IDE https://randomnerdtutorials.com/installing-the-esp32-board-...