DFRobot
ESP32-S3 1.85" Round Touch Display Board with Qi Charging
· MPN: DFR1221
Build compact visual interfaces, IoT dashboards and voice-enabled projects around an ESP32-S3R8 module with an integrated circular touchscreen. The board com...
Build compact visual interfaces, IoT dashboards and voice-enabled projects around an ESP32-S3R8 module with an integrated circular touchscreen. The board combines processing, display, touch, wireless connectivity, audio and power features into a single development platform.
The 1.85-inch round TFT LCD provides a 360 x 360 pixel interface with capacitive touch, making it well suited to smart home control panels, desktop info hubs, industrial HMIs and wearable prototypes. Wi-Fi and Bluetooth LE 5.0 are built in for connected projects.
For audio and interaction projects, the board includes an onboard I2S digital microphone, a 3.5mm audio jack and a MicroSD card slot. Power and programming are available via USB Type-C, with Qi wireless charging support for enclosed or portable builds.
Software support includes Arduino IDE, ESP-IDF and MicroPython, with UI framework options such as LVGL and Arduino GFX. The shipping list includes one ESP32-S3 1.85inch Round Display Development Board.
Features:
- ESP32-S3 core: ESP32-S3R8 dual-core processor for display, IoT and AI voice projects.
- Round touchscreen: Integrated 1.85-inch circular TFT LCD with capacitive touch.
- Wireless connectivity: Built-in 2.4GHz Wi-Fi and Bluetooth LE 5.0.
- Audio hardware: Onboard I2S digital microphone for voice capture.
- Audio output: Standard 3.5mm audio interface for sound output.
- Modern power options: USB Type-C plus Qi wireless charging receiver.
- Storage expansion: MicroSD card slot for project assets and data.
- Development support: Compatible with Arduino IDE, ESP-IDF and MicroPython.
Specifications:
- MCU: ESP32-S3R8 Dual-Core @ 240MHz
- PSRAM: 8MB
- Flash: 16MB On-board
- SRAM: 520KB
- Screen: 1.85" Round TFT LCD
- Resolution: 360 x 360 Pixels (262K Colors)
- Touch: 5-Point Capacitive Touchscreen
- UI Frameworks: LVGL, Arduino GFX, and more
- Wireless: 2.4GHz Wi-Fi & Bluetooth LE 5.0
- Wired Interface: USB Type-C (for power and data)
- Wireless Power: Qi Wireless Charging Receiver
- Audio Input: Onboard I2S Digital Microphone
- Audio Output: 3.5mm Audio Jack
- Storage: MicroSD Card Slot
- Programming: Arduino IDE, ESP-IDF, MicroPython
- Case: CNC Aluminum Alloy Shell
A strong fit for smart home control hubs, interactive wearable prototypes, custom AI voice assistants, portable industrial dashboards, desktop info hubs and digital music visualisers.
Jargon buster
Plain-language definitions for the technical terms used above.
- Arduino GFX
- Arduino GFX is a graphics library used to draw text, shapes and images on displays from Arduino-style code. It matters for this kind of board because it can simplify getting the round screen working in custom projects.
- ESP-IDF
- ESP-IDF is Espressif’s official software development framework for ESP32-family chips. It gives more direct control over the hardware than beginner-style environments, which can help with advanced features like Wi-Fi, Bluetooth, audio and power management.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- I2S
- I2S is a digital audio interface used to send sound data between chips, such as from a microcontroller to an audio amplifier or DAC. It matters if your project needs cleaner digital audio output than a basic buzzer or PWM signal can provide.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- LCD
- LCD stands for liquid crystal display, a screen technology that uses a backlight and liquid crystals to show images or text. It matters because LCD modules usually need a display driver and enough controller pins or a bus interface to send image data.
- LVGL
- LVGL is an open-source graphics library for building buttons, menus, gauges and other user interfaces on small embedded displays. Support for LVGL matters if you want to create a polished touchscreen interface without drawing every screen element from scratch.
- MicroPython
- A version of the Python programming language made to run on microcontrollers. It matters because it lets beginners write readable code to control LEDs, sensors, motors and displays without needing to start with lower-level languages.
- microSD card
- A microSD card is a small removable memory card used to store files such as audio tracks. For this product, the card is where the sound files live, so its capacity and formatting can affect how many sounds you can use.
- Qi wireless charging
- Qi is a common wireless power standard used by many phone chargers. If a board has a Qi receiver, it can be powered or charged through an enclosure without plugging in a cable, but it still needs a compatible charging pad and suitable battery/power design.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
- TFT
- A thin-film transistor display is a common type of colour LCD used for graphics screens. Knowing a product is for TFTs helps you check that the driver board matches the display’s connector, resolution, backlight, and signalling method.
- USB Type-C
- A reversible USB connector used for power and data on many modern devices. On this kit it indicates an alternate 5V power input, which may be useful for setup or charging without the solar panel.
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