Mathieu Carbou

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Lead Software Engineer in Terracotta R&D @ IBM, Arduino / ESP32 developer

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Hello,

I am a passionate developer with more than 20 years of XP in several languages, technologies and compagnies.

I am currently working as a Lead Software Engineer, at IBM in the Terracotta R&D team since 2015. We built Ehcache and Terracotta Store and provide clustering and management solutions for caching and storing huge amount of data efficiently with no downtime, low latency in a consistency or availability mode.

I am also an Arduino / ESP32 developer, creator and maintainer of several Open Source Projects that you will find below. With over 30 Arduino / ESP32 projects and 154 releases in 2025, plus over 40 releases in the ESP32Async organization, I was proud to be both nominated as individual and as ESP32Async by the Arduino Team as being one of the top Arduino Library maintainer for the year 2025 (PDF Report) !

I’ve been involved during 10 years in the Montreal Java User Group that I’ve bootstrapped in 2010 with a friend (David). This is now one of the biggest JUG over the world. I was also part of the Devoxx4Kids Quebec organization.

I’m also an enthusiast photographer: feel free to visit my Photography website! You will find some articles about neutral density filters and infrared photography too.

Articles

Solar diverters / routers

JSY

Home Assistant

Projects

Solar Routers / Diverter

I am specialized in solar routing / diversion. I have created many solar routers and also libraries to help build solar routers.

     
Shelly Pro Solar Router Shelly Your Solar Router based on Shelly components and LSA dimmer
Home Assistant Solar Router HA Solar Router controlled by Home Assistant and using a Shelly Dimmer Gen3 + LSA for the dimmer
YaS☀️lR (Yet another Solar Router) ESP32 Heat water with your Solar Production Excess with the more powerful and precise solar diverter out there!

Others

     
Beelance ESP32 Autonomous and remotely connected weight scale for beehives 🐝
MycilaShutterSpeedTester ESP32 ESP32 firmware to mesure camera shutter speeds

License Maven Plugin

     
License Maven Plugin Maven Maven plugin which helps managing license headers in your project source files

Arduino / ESP32 Libraries

AsyncTCP and ESPAsyncWebServer

I am actively maintaining these libraries as part of ESP32Async organization:

     
AsyncTCP ESP32 AsyncTCP is a library for ESP32 Arduino that facilitates the use of TCP connections in an asynchronous way
ESPAsyncWebServer ESP32 WebSocket, SSE, Authentication, Arduino Json 7, File Upload, Static File serving, URL Rewrite, URL Redirect, etc

Electricity:

     
MycilaJSY ESP32 Arduino / ESP32 library for the JSY1031, JSY-MK-163, JSY-MK-193, JSY-MK-194, JSY-MK-227, JSY-MK-229, JSY-MK-333 families single-phase and three-phase AC bidirectional meters from Shenzhen Jiansiyan Technologies Co, Ltd.
MycilaJSYApp ESP32 Arduino / ESP32 Web Application for JSY devices
MycilaPulseAnalyzer ESP32 ESP32 / Arduino Library to analyze pulses from a Zero-Cross Detection circuit
MycilaDimmer ESP32 ESP32 / Arduino Library to control TRIAC, Random SSR, Voltage Regulator with DfRobot DAC or PWM
MycilaPZEM ESP32 Arduino / ESP32 library for the PZEM-004T v3 and v4 Power and Energy monitor
MycilaRelay ESP32 Arduino / ESP32 library to control Electromagnetic and Solid State Relays

GPIO Components:

     
MycilaDS18 ESP32 ESP32 / Arduino Library for Dallas / Maxim Temperature Integrated Circuits
MycilaEasyDisplay ESP32 Easy to use Arduino / ESP32 library for SH1106, SH1107, SSD1306 OLED I2C displays
MycilaTrafficLight ESP32 ESP32 / Arduino Library for Traffic Light LEDs

MQTT / Home Assistant:

     
MycilaHADiscovery ESP32 Simple and efficient Home Assistant Discovery library for Arduino / ESP32
MycilaMQTT ESP32 A simple and efficient MQTT/MQTTS client for Arduino / ESP32 based on Espressif API

Network:

     
MycilaESPConnect ESP32 Simple & Easy Network Manager with Captive Portal for ESP32 supporting Ethernet
MycilaNTP ESP32 A simple and efficient NTP library for ESP32 / Arduino
MycilaWebSerial ESP32 WebSerial is a Serial Monitor for ESP32 that can be accessed remotely via a web browser

System:

     
MycilaConfig ESP32 A simple and efficient config library
MycilaDataLogger ESP32 ESP32 firmware to connect an ESP32 to an existing ESP32 to view the Serial logs including crashes and stack traces remotely through a web interface
MycilaLogger ESP32 A simple and efficient logging library for Arduino / ESP32
MycilaSafeBoot ESP32 MycilaSafeBoot is a Web OTA recovery partition for ESP32 / Arduino allowing for a bigger application partition
MycilaSystem ESP32 Arduino / ESP32 library for system-related tasks
MycilaTaskManager ESP32 Arduino / ESP32 Task Manager Library
MycilaTaskMonitor ESP32 Arduino / ESP32 library to monitor task priority and stack high watermark
MycilaTrial ESP32 Arduino / ESP32 library to add a trial duration in your app
MycilaUtilities ESP32 Utils stuff for Arduino / ESP32 like Time, String functions, CircularBuffer, etc

Java Libraries

     
Mycila Guice Java Google Guice Extensions
Mycila Pub Sub Java In-JVM Event API
Mycila XML Tool Java Manage XML document through a simple fluent API

Contributing / collaborating to these projects

     
Arduino Core from Espressif Systems ESP32 I have contributed fixes and WebServer improvements such as middleware support
ESP-DASH and ESP-DASH Pro from @ayushsharma82 ESP32 ESP-DASH is a library for ESP32 Arduino that facilitates the use of a dashboard in an asynchronous way. I have contributed most of the recently newly added fixes and features of the OSS and Pro version
pioarduino (Discord) ESP32 PlatformIO replacement with Vscode extension which is compatible with Arduino 3 and new boards
WebSerial and WebSerial Pro from @ayushsharma82 ESP32 WebSerial is a Serial Monitor for ESP32 that can be accessed remotely via a web browser. I have contributing the recent fixes and high performance mode

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