Aqua Mitra is a smart aquarium companion built using the CrowPanel 2.8-inch ESP32 HMI display and SquareLine Studio. It provides an interactive touch dashboard to monitor and manage aquarium conditions in real time. The system integrates a DS18B20 temperature sensor for continuous tank monitoring, an SG90 servo motor for automated feeding at scheduled intervals, and relay-based control for lighting and air pump operation. By combining sensing, automation, and intuitive UI design, Aqua Mitra simplifies aquarium care while maintaining a stable and healthy aquatic environment through precise embedded control.

This is certainly the cheapest and simplest Internet radio that you can make yourself if you have minimal knowledge in the field of electronics, and all thanks to this universal and practical display module.

A few simple Arduino examples of using this low-cost compact esp32 + tft touch display module.

Build a wireless, portable smart-home control tablet

The Vision-Guided Sorting Platform is a functional small-scale prototype designed to demonstrate the principles of industrial automation through a "Proof of Concept" (PoC) model. This project integrates embedded graphics, computer vision, and motion control into a synchronized system, using a custom-built structure to prove the efficiency of the control logic. Controlled through a 7-inch CrowPanel HMI, the platform simulates an automated sorting line. The system is programmed to identify and categorize three distinct geometric shapes: Squares, Triangles, and Circles, showcasing how sophisticated software integration can drive mechanical execution even in a rapid-prototyping environment.

Easy-to-build VFO (Variable Frequency Oscillator) that features a clear, touch-enabled circular display with retro-style virtual scales.

In this project, we’ll turn the Elecrow 7" ESP32-S3 HMI display into a complete UPI payment interface for a vending-machine-style system. You’ll learn how to design the UI in SquareLine Studio, generate a dynamic UPI QR code based on selected items, and print a payment receipt using a thermal printer — all driven by a single ESP32-S3 board.

How modern electronics can completely replace and improve the classic mechanical instrument, offering digital precision in a beautiful retro package.

A Nextion-like HMI, but without the pain. This ESP32 firmware uses plain JSON over UART to create and control the UI dynamically. No editor, no compiling screens — just send commands and get events back. Simple, transparent, and made for real embedded projects.

Uses the HMI's onboard outputs to display plant growth information. Ideally, more than one node either through other ESP32 chips, but displayed with several options for personalization.

This module from Elecrow has endless possibilities for making DIY projects in a relatively simple way, without need for soldering or other hardware work.