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Top 22 C esp32-arduino Projects
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Farm-Data-Relay-System
A system that uses ESP-NOW, LoRa, and other protocols to transport sensor data in remote areas without relying on WiFi.
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NeoGB-Printer
An open-source and standalone Gameboy Printer emulator 100% compatible with all officially released games (110 in total) that support the accessory. Just print and save the images as BMP
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inkplate10-weather-cal
Displays today's date, weather forecast and a stylised map of your city using Inkplate10 (ESP32)
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ESPHome-Air-Quality-Monitor
ESPHome configuration for a DIY indoor air quality monitor for CO₂ concentration, PM2.5 and PM10 concentrations, and temperature, humidity and pressure
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miniwinwm
Open source embedded window manager with overlapped windows. This project is actively maintained and free support is provided via the website. New features can be added on request. Consultancy can provided for commercial use.
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bluetooth-low-energy-applications
Code examples, errata and additional tips and references to interesting projects for the book "Develop your own Bluetooth Low Energy Applications for Raspberry Pi, ESP32 and nRF52 with Python, Arduino and Zephyr"
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SC01_Plus_HMI_example
Arduino example using SquareLine Studio to make an HMI with an SC01_plus capacitive display.
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Esp32_yolo_gtts
Using Esp32cam as a video streaming device and with the help of yolo v3 classifying objects and then converting to speech using gtts.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C esp32-arduino discussion
C esp32-arduino related posts
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Ask HN: How to get started with practical hardware?
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IKEA Obegränsad + ESP32 + WLED?
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Now in stock!
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Isn't this a jolly fellow? (skin/screen .svgs)
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Building a wifi dev board
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it's sleeker now :)
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connect esp32 remotely without any hosting services
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source esp32-arduino projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Arduino-HomeKit-ESP8266 | 1,607 |
| 2 | ESPresense | 1,428 |
| 3 | Farm-Data-Relay-System | 609 |
| 4 | TTGO-T-Beam | 356 |
| 5 | sqlite_micro_logger_arduino | 193 |
| 6 | NeoGB-Printer | 159 |
| 7 | Web3E | 152 |
| 8 | inkplate10-weather-cal | 129 |
| 9 | bbn-m5stack-tough | 123 |
| 10 | ESPHome-Air-Quality-Monitor | 116 |
| 11 | CubOS | 92 |
| 12 | miniwinwm | 58 |
| 13 | ESP-Arduino-Lua | 58 |
| 14 | bluetooth-low-energy-applications | 56 |
| 15 | ESP32-S2-S3-Projects | 50 |
| 16 | cyberWatch | 39 |
| 17 | OctoWifi-LEDs-Controller | 21 |
| 18 | SC01_Plus_HMI_example | 18 |
| 19 | M5-ESP32-keyer | 16 |
| 20 | Esp32_yolo_gtts | 13 |
| 21 | micro_ros_arduino_kaiaai | 12 |
| 22 | ESP32-Shiftlight | 4 |
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