IoT fingerprint reader

IoT fingerprint reader thumbnail
I recently replaced the RFID ring reader that I use to unlock my front door with an IoT fingerprint reader. An obvious advantage is that I risk losing my finger way less than a ring.


MQTThree thumbnail
A simple framework using Three.js and MQTT to easily create digital twins
FeaturedThree.jsProjectsIoTMQTT +2

IoT 体重計

IoT 体重計 thumbnail

IoT sensor module

IoT sensor module thumbnail
Although a wide variety of sensing devices can be envisioned for home automation systems, motion and temperature sensors are among the most widespread. This is mostly due to their low cost and simplicity of use. In order to equip multiple rooms of my apartment with such sensors, I designed a simple IoT sensing module that can easily be produced in any quantity.
ESP8266ArduinoIoTElectronicsMQTT +1

IoT LED controller

IoT LED controller thumbnail
Smart lights are usually some of the first appliances to be added to a smart home. Although those can nowadays be purchased easily from various brands, I wanted to have my own hardware so as to integrate it better with other devices and software. Thus, I decided to an IoT LED controller that I can use in various projects where lighting has to be controlled via network protocols.
FeaturedPCB designElectronicsWIPArduino +1

IoT EM4305 RFID Reader

IoT EM4305 RFID Reader thumbnail
RFID tags come in various forms and sizes, from standard plastic cards to chips that can be implanted in one's hand. I got particularly interested in RFID rings, which can be purchased online for less than USD 20$. Those are based on EM4305 chips, which require a compatible reader. Thus, I designed an IoT EM4305 reader that can exchange data over MQTT with other devices.

IoT Kernel

Over the years, I have written firmwares for various IoT devices such as lights, locks or heaters. Those firmwares would generally handle a common set of basic functions like managing wifi connection, serving a configuration web interface over HTTP or exchange MQTT messages. However, having to implement and maintain those functions for each individual firmware quickly became tedious work. Consequently, I decided to write a library to handle all those basic functions. This library is used as a base for IoT device firmwares, on top of which device-specific logic can easily be added.

Smart outlet setup

Smart outlet setup thumbnail
When used for the first time, the device will have no knowledge of what WiFi to connect to. Consequently, the smart outlet will generate its own, prefixed with the name <em>socket.</em>

Unlocking my apartment with my face

Unlocking my apartment with my face thumbnail
As part of a previous project, I installed an IoT lock on my front door, which allowed me to control it using my smartphone. However, having to take out my smartphone every time I want to unlock the door quickly becomes annoying. To improve on the situation, I installed an RFID reader on the lock, which I used in combination with an RFID ring which now serves as my key. To follow up on this trend of finding new ways to unlock my door, I decided to explore face recognition technologies.
AI / MLComputer visionESP32PythonIoT

SONOFF S20 firmware

SONOFF S20 firmware thumbnail
The SONOFF S20 is a cheap Wifi smart socket that enables the remote control of appliances for less than USD 10. Although the hardware is more than decent, its usage requires a proprietary app which most likely involves a third party server between the user and the device. Since the socket uses an ESP8266 at its core, I decided to write my own firmware for it.