Arduino

ESP32 multiple phase DIY energy monitor

1 month ago By Daniel

Introduction

For months I've been looking for a non-intrusive energy monitoring solution for my home. The residence receives more than one phase from the utility company and because of that, the available solutions in the market based on open protocols are extremely expensive. Cheap alternatives always rely on cloud services and I don't believe any of them will remain online for too long.

Control Arduino from Android using Node-RED and Johnny-Five

3 years ago By Daniel

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).

Control Arduino via USB OTG from Android

3 years ago By Daniel

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.

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