Open Hardware

ESP32 Microcontroller Solutions

Product-based solutions built on the ESP32 platform — from rapid IoT prototyping to production-ready embedded systems, all powered by open-source hardware and software.

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Wi-Fi+ Bluetooth 5
240 MHzDual-Core CPU

The Heart of Open-Source IoT

The ESP32 is one of the most versatile and affordable microcontrollers available. With built-in Wi-Fi, Bluetooth, dual-core processing, and rich GPIO, it's perfect for everything from smart home devices to industrial monitoring.

At Alin Li, we leverage the ESP32 ecosystem to build real products — combining open-source firmware, custom PCB design, and cloud integration to deliver solutions that are cost-effective, scalable, and fully transparent.

Whether you need a prototype for a proof of concept or a production-ready embedded device, our team handles the full lifecycle — from hardware design to firmware development to deployment.

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Wi-Fi & BLE

Built-in wireless connectivity for IoT, mesh networks, and smart devices

Low Power

Deep sleep modes for battery-powered and solar-powered deployments

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Open Source

ESP-IDF, Arduino, MicroPython — choose your stack, own your code

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Production Ready

From prototype to mass production with proven supply chains

ESP32-Based Solutions

Ready-made and custom solutions for IoT, automation, education, and beyond.

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Environment Monitor

ESP32-powered temperature, humidity, and air quality sensor node with MQTT reporting and web dashboard. Ideal for smart buildings and greenhouses.

ESP32-S3 Wi-Fi MQTT BME680
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Smart Relay Controller

4-channel relay board with ESP32 brain. Control lights, pumps, and appliances remotely via Wi-Fi. Supports Home Assistant and custom firmware.

ESP32-WROOM 4 Relays Home Assistant
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GPS Asset Tracker

Compact ESP32 + GPS module for real-time asset tracking. Features BLE beacons, geofencing alerts, and solar charging options for outdoor use.

ESP32-C3 GPS/GNSS BLE Solar
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IoT Learning Kit

Educational kit with ESP32 dev board, sensors, LEDs, and a guided curriculum. Designed for workshops, classrooms, and self-learners getting started with embedded systems.

ESP32 DevKit 10+ Sensors Curriculum
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Industrial Gateway

ESP32-based Modbus RTU/TCP gateway for connecting legacy industrial equipment to modern cloud platforms. DIN-rail enclosure for panel mounting.

ESP32-S3 Modbus RS485 DIN-Rail
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Custom ESP32 Project

Have a unique idea? We design custom ESP32 solutions — from PCB layout and firmware development to enclosure design and manufacturing support.

Custom PCB Firmware Enclosure
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Ready to Bring Your ESP32 Idea to Life?

Whether you need an off-the-shelf IoT product or a fully custom embedded solution, Alin Li has the expertise to deliver.

Get in Touch →