ESP32 multiple phase DIY energy monitor
Open source voltage, current, apparent power, real power and energy consumption DIY monitor based on ESP32, ESPHome and OpenEnergyMonitor.
Internet of Things IoT
Control Arduino via USB OTG from Android
This script allows Johnny-Five to run from a Termux terminal communicating with other Android apps or external devices by using the TCP protocol without root, without bluetooth and without the WiFi shield. The reason for the TCP protocol is that Termux still does not implement USB-OTG to Serial drivers and the vanilla Johnny-Five would hang right out the box because of this limitation.
Control Arduino from Android using Node-RED and Johnny-Five
Tutorial for controlling Arduino or other IoT devices from Android phones using Johnny-Five and Node-RED. The connection to the board can be local (USB OTG) or remote (TCP).
PHP - CSV Viewer for Web Browsers
PHP script that opens and parses a CSV table file to an HTML format to be displayed in the browser.
PHP - Internet of Things Web Logger
Server side PHP Script that captures any HTTP GET request data and stores in a CSV spreadsheet. Can be used with Raspberry PI circuits, Arduino, IntelGalileo, IntelEdison and even with Smartwatches that can connect to the internet using Ethernet cables, Bluetooth, USB or Wifi.