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The Makerfabs MaTouch ESP32-S3 7.5-inch Quad-Color E-Ink board (SKU MAEI75C) combines an 800×480, four-color e-paper display with a microphone array, camera input and motion sensor. It is a development board for projects such as displaying camera captures or browsing microSD images with voice commands—not a touchscreen or a fast-refresh animation display.
What the MaTouch board is
Makerfabs identifies the product as the MaTouch ESP32-S3 7.5-inch Quad-Color E-Ink ePaper board; its wiki uses the model name Matouch_7.5_Eink. The integrated design brings the display and supporting components onto one development board. Its documented examples show image capture and voice-controlled image browsing. Makerfabs product listing · Makerfabs wiki
Display: large, color e-paper with a slow full refresh
The panel measures 7.5 inches diagonally and has an 800×480 resolution. Makerfabs documents four display colors: black, white, red and yellow. The wiki identifies the panel as KEGM075004E05, driven by a JD79665 controller over SPI through a 24-pin FPC. Its active area is 163.2×97.92 mm, with a 0.204 mm pixel pitch.
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Makerfabs lists a full refresh time of about 20 seconds. That makes the panel better suited to content that changes occasionally—such as a status screen, image viewer or dashboard—than to animation or frequent updates. The product listing describes the screen as daylight readable and says it retains its image without power; these are manufacturer claims, not independently measured results. The wiki gives an operating range of 0°C to 40°C and a storage range of −25°C to 60°C. Makerfabs wiki · Makerfabs product listing
#1 Best Overall
- 🔥【Dual Mode & High Performance】 The ESP32-S3 development board features integrated dual-core xtensa 32-bit LX7 microprocessor, clock speed up to 240 MHz, with 16MB Flash and 8 MB PSRAM. Perfect for Arduino IoT projects requiring stable wireless communication with ultra-low power consumption.
- 🔧【Easy Programming & Debugging】 Equipped with dual USB Type-C ports, this ESP32-S3 board supports both USB and UART modes for effortless programming, firmware flashing, and debugging.
- 🌐【Versatile Wireless Connectivity】 Built-in Wi-Fi (2.4GHz) and Bluetooth 5.0 (LE) dual-mode ensure seamless connectivity with a wide range of smart devices, making it ideal for IoT, smart homes projects.
- 🚀【Flexible Download Options】 Supports dual download methods — USB direct download or USB-to-serial download — offering flexibility and convenience for different development needs.Ideal for beginners and developers working with ESP32-S3.
- 🔋【Advanced Power-Saving Modes】 Designed for energy-efficient applications, with 3.3V SPI voltage, the ESP32-S3 board supports multiple low-power modes, allowing you to extend battery life based on different usage scenarios.
What hardware is integrated
- Controller and memory: ESP32-S3R8, 8 MB PSRAM and 16 MB SPI flash.
- Motion sensing: QMI8658A six-axis accelerometer and gyroscope.
- Audio input: four microphones with an ES7210 multi-channel audio ADC.
- Camera: camera input documented for an OV3660.
- Expansion and power: microSD slot, USB Type-C and a lithium-battery charging circuit.
- Wireless: Wi-Fi and Bluetooth 5.0 are listed.
These specifications describe the board and its interfaces; they do not establish that every camera, battery, microSD card or cable is included in every purchase package. Confirm the selected configuration with the seller. The manufacturer lists no touch panel. Makerfabs product listing · Makerfabs wiki
What the documented examples do
Show a camera image
Makerfabs’ camera example initializes the camera and display, captures a frame, converts the image to fit the screen’s resolution and color format, and refreshes the e-paper panel. It demonstrates a still-image workflow; the listed full refresh time makes it unsuitable to interpret as a real-time video display.
Rank #2
- Powerful MCU Board: Incorporate the ESP32 S3 32-bit, dual-core, Xtensa processor chip operating up to 240 MHz, mounted multiple development ports, Arduino / MicroPython supported
- Advanced Functionality: Detachable OV2640 camera sensor for 1600*1200 resolution, compatible with OV3660 camera sensor, integrating additional digital microphone
- Great Memory for more Possibilities: Offer 8MB PSRAM and 8MB FLASH, supporting SD card slot for external 32GB FAT memory
- Outstanding RF performance: Support 2.4GHz Wi-Fi and BLE dual wireless communication, support 100m+ remote communication when connected with U.FL antenna
- Thumb-sized Compact Design: 21 x 17.5mm, adopting the classic form factor of XIAO, suitable for space-limited projects like wearable devices
Browse BMP images with voice commands
The voice example mounts a microSD card, looks for BMP files in the root images directory and displays the first valid image. The documented interaction is:
- Say
Hi ESPto wake the voice interface. - Say
show next pictureorshow previous pictureto change the displayed image. - Say
Hi ESPagain before issuing another command, as the example instructions require a new wake phrase for each command.
This is a manufacturer-documented sample project, not an independent test of recognition range or accuracy. The documentation does not establish a microphone-range figure. Makerfabs wiki
Rank #3
- Capacitive Touch Display: Onboard 1.28inch capacitive touch display with 240×240 resolution and 65K color, featuring QMI8658 6-axis IMU with 3-axis accelerometer and 3-axis gyroscope for detecting motion gestures
- Memory and Storage: Built in 512KB of SRAM and 384KB ROM, with onboard 2MB PSRAM and an external 16MB Flash memory, featuring Type-C connector for easy connectivity and updates
- Dual-Core Processor: Equipped with 32-bit LX7 dual-core processor operating up to 240MHz main frequency, supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) with onboard antenna
- Battery and Connectivity: Onboard 3.7V lithium battery recharge and discharge header with 6 GPIO pins via SH1.0 connector for flexible project integration
- Low Power Consumption: Supports flexible clock and module power supply independent setting with various controls to realize low power consumption in different scenarios, integrated with USB serial port full-speed controller and GPIO pins for flexible pin function configuration
Setup and project fit
The wiki documents both ESP-IDF and Arduino support and specifies ESP-IDF 5.4.2 for its setup instructions. The documented voice example needs a microSD card containing BMP images in the root images directory. A USB Type-C connection is used to connect the board to a computer; check that the cable supports data if you intend to program or communicate with the board.
This board makes most sense for a maker who wants to experiment with a relatively large four-color e-paper screen alongside audio capture, motion sensing or camera input. It is less suitable if the project depends on touch input, rapid screen updates, or a confirmed ready-to-use package without checking what is included. No battery-life figure or measured refresh result is established in the manufacturer materials cited here.
Rank #4
- High-Performance ESP32-S3 Chip – Powered by the ESP32-S3 processor for fast performance and stable connectivity. Ideal for IoT, AI voice interaction, smart home, robotics, and DIY development projects with extensive open-source support.
- 3.5-Inch Capacitive Touchscreen – Features a 3.5" full-color IPS display with 320×480 RGB565 resolution for clear images and smooth touch control. Perfect for HMI interfaces and interactive applications.
- Rich Expansion Interfaces – Includes multiple interfaces such as IIC and UART for easy connection to sensors, modules, and external devices. Built-in RGB indicator light provides convenient status feedback.
- Audio & TF Card Support – Built-in microphone and external speaker support enable voice input and audio playback. Integrated Micro TF card slot allows convenient storage expansion for multimedia and project files.
- Portable & Easy to Use – Equipped with a USB Type-C port for simple programming and power supply. Supports external lithium battery connection with onboard charging management for safe and portable operation.
Price and availability
Makerfabs’ listing showed $59.80 and “In stock” when accessed on October 7, 2026. Price and stock can change; confirm both on the current product listing before ordering. The product is most reliably identified by SKU MAEI75C; availability of that exact SKU through other retailers is not established here.
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Best Value
- Powered by a high-performance ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor, boasting a maximum main frequency of 240MHz for smooth multitasking.
- Supports 2.4GHz Wi-Fi (802.11 b/g/n) and BLE with an onboard antenna, ensuring stable wireless connectivity.
- Equipped with 512KB SRAM, 384KB ROM, 8MB onboard PSRAM, and 32MB external Flash for ample storage and memory.
- Features a 1.75-inch AMOLED capacitive touch display (466×466 resolution, 16.7M colors) with high contrast and vivid visuals.
- Comes with Type-C port, 6-axis IMU, dual-microphone array, and AXP2101 power management IC for versatile functionality.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
