Make a Connection

EM Signal detection and transmission

Hoytman — Thu, 10 Sep 2026 20:23:43 GMT

A sea of electromagnetic noise surrounds humanity, coming from countless electrical devices. Have you ever been curious about that noise? For my competition entry, I’ll show you how to build a simple EM detector so that you can listen...(read more)

Blinking at a webcam: a one-way optical data link with an M5Stack Atom Matrix

apn201 — Thu, 10 Sep 2026 09:52:59 GMT

An M5Stack Atom Matrix blinks colour at a webcam. A CRC-verified one-way optical link decodes the text. No radio, nothing to jam. Project14 entry.(read more)

OrderUp - Turning a Spoken Order Into a Signal the Kitchen Can Hear

arvindsa — Sun, 06 Sep 2026 08:20:28 GMT

Since the time I learnt that the next project14 theme was going to be "Make a Connection" - Build a project that sends a message or Signal, I have been racking my mind for something unique. I blasted through the usual suspects, nearly fina...(read more)

Meshtastic Solar Hat Node

ralphjy — Sat, 05 Sep 2026 00:49:21 GMT

Meshtastic Solar Hat Node Introduction Back in July, cstanton posted The world's on fire - embrace solar punk in the Design Challenges Forum about the Meshtastic network and communicating "off grid". I just di...(read more)

Fighting e-waste and device obsolescence

obones — Tue, 25 Aug 2026 14:25:37 GMT

Back in 2023, I created a subject to get help about a weather station that I inadvertently broke by applying twice its expected voltage at its power source As I said at the time, I replaced it by another model of the same family and it had been runni...(read more)

Alarm with ZIHATEC AZ-Touch, ESP8266 and ESP-NOW communication

Spain_mtg — Wed, 19 Aug 2026 22:52:03 GMT

Alarm with ZIHATEC AZ-Touch, ESP8266 and ESP-NOW communication In this project we are going to develop an alarm that detects when a door is opened and the presence of a person or animal in a room due to movement. For its realization we h...(read more)

FarmShield: A Subscription Free, Solar-Powered LoRa Mesh Network for Remote Environmental and Water monitoring

Liam_Mitch — Sun, 16 Aug 2026 01:01:48 GMT

Hey everyone! Here is a project that my friend and I have worked on for the past month or so!FarmShield directly addresses the difficulty of monitoring remote environmental and water parameters across large farms and protected areas where manual insp...(read more)

A NUT (Network UPS Tools) itch that needed scratching

colporteur — Sat, 01 Aug 2026 19:04:40 GMT

I had an IT itch that I needed to scratch. The yard supervisor met me at the office with his phone, he stated, “We’re performing seed-plant maintenance and received this message.” He showed me a screenshot of the control computer fo...(read more)