As a DIY electronics maker, having a portable HMI (Human-Machine Interface) screen in your hands is so necessary that it can help you build so many creative electronics and IoT projects with interactive intelligent commands.

To give you the best price with the maximized functions of ESP32 portable HMI screens, Elecrow has launched the 2 pioneering ESP Terminal HMI screens which come in 2 versions: one is ESP32 3.5" HMI RGB display, the other is ESP32 3.5" HMI SPI display.

What can ESP32 3.5" HMI RGB display and ESP32 3.5" HMI SPI display do?

These 2 ESP32 3.5" HMI Displays share some common features:

1. Powerful ESP32-S3 chip:

They are both microcontrollers based on ESP32 master. It adopts an Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240Mhz, supports 2.4GHz Wi-Fi and Bluetooth 5 (LE), and can easily handle common edge terminal application scenarios, such as industrial control, agricultural production environment detection, and processing, intelligent logistics monitoring, smart home scenarios and more.

2.3.5" HMI Screen with 320*480 resolution:

The two types of HMI screens both have a 3.5-inch HMI screen with 320*480 resolution to ensure perfect image output, although their frame rate (FPS) may be slightly different.

3. Multiple interfaces expand your project possibilities

Supporting 4 Crowtail interfaces, the ESP32 screen is fully compatible with over 100＋ Crowtail modules that Elecrow has developed to meet the different needs of makers, which means you can customize and creatively design your DIY electronics projects with modules and sensors you like. The 4 Crowtail interfaces can be used with our Crowtail series sensors, plug and play, to create more interesting projects quickly and conveniently.

They are also equipped with an SD card slot for extended storage (SPI lines) and a buzzer function. Moreover, equipped with analog, digital, UART, IIC ports, the screen can be applied in so many electronic scenarios such as IoT programs, smart home projects, etc.

4. Compatible with Multi-Coding Environments

Both ESP32 HMI displays support VSCODE(esp-idf) and Arduino IDE development and are compatible with Python/Micropython/Arduino.

5. Support for LVGL, SquareLine Studio

It's not surprising that the HMI screens can support LVGL, which is the most popular free and open-source embedded graphics library to create beautiful user interfaces for any MCU, MPU, and display type. Not only that, but they also support SquareLine Studio UI design tools, making it so convenient for makers, designers, and programmers to develop great projects for better user interface and human-machine interactive experience.

6. Rechargeable with portable power supply

For some makers, it's not convenient to always charge electronic components with a fixed power supply; DIY electronic projects require much more flexibility and an available power supply anytime, anywhere. The ESP 3.5" HMI displays solve these problems perfectly. Their onboard charging circuits and lithium battery interfaces can use the type-C power supply interface to supply power and charge the battery at the same time, providing more options for outdoor scene expansion.

7. Aesthetic Acrylic Case and mountable design

The ESP 32 terminals use an acrylic shell, which can not only protect the screen but also make it more beautiful. The size is only pocket size, small and portable; two M3 fixing holes are easy to fix, making it easier for you to set up your project.

What are the differences between the ESP32 3.5" HMI RGB Display and the ESP32 3.5" HMI SPI Display?

There are several differences and sharing features between the ESP32 3.5" HMI RGB Display and the ESP32 3.5" HMI SPI Display, as shown in the table below.

As the table shows, the 2 types of ESP32 displays differ in several aspects:

1. Frame rate (FPS): The ESP32 HMI RGB display has a higher frame rate of 60 compared to the frame rate of 20 of the SPI screen, which can make it play videos more fluently. If you have higher requirements for screen performance, you can try this ESP32 HMI RGB display.
2. Cameras and Microphone Functions: The ESP32 HMI SPI display provides the basic visual effect and adds more Crowtailinterface and camera/microphone functions. If the makers have more requirements such as the microphone or camera functions, the ESP32 HMI SPI display may be the better choice.
3. Analog/Digital Interfaces:

The ESP32 HMI RGB display has one analog port and one digital port, while the ESP32 HMI SPI display has 2 analog and 2 digital ports.

What makes ESP32 3.5" HMI Display stand out?

Elecrow has launched the ESP32 3.5" HMI RGB display and the ESP32 3.5" HMI SPI display to help makers and electronic hobbyists realize their projects with better prices and powerful features. The ESP32 3.5" HMI displays, equipped with the advanced ESP32-S3 module and the interactive HMI screen with 2.4 GHz Wi-Fi and Bluetooth 5 (LE), are already powerful enough to create various projects and can easily meet the requirements of a variety of electronic applications with good prices.

Get these displays here!

About Elecrow

Elecrow is a one-stop solution platform providing services to tech geeks and makers around the world, including PCB assembly, PCB manufacturing, and component sourcing. Elecrow can provide makers and electronics enthusiasts with the electronic parts they need to complete their projects.          

Elecrow has strong supply chain sources and can provide you with a variety of components with high-quality and competitively priced components through multiple channels. From the resistor, capacitor, inductor, diode and triode, rectifier bridge, and IC to any type of connector, shell, wire/cable, and button, Elecrow can help you source them all. The service is designed to save you money and time so that you can concentrate on your work and not worry about sourcing issues.

Elecrow also provides a sales platform for DIY electronics makers and welcomes partner sellers to sell their products and earn benefits!