Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Processor | Dual-core ESP32-S3-WROOM-1 (Xtensa LX7) |
| Display Type | 3.97-inch E-Ink (Black & White) |
| Display Resolution | 640 x 400 pixels |
| Connectivity | Wi-Fi 2.4GHz and Bluetooth 5 (LE) |
| Voice Interface | Built-in I2S microphone and speaker header |
| AI Support | Optimized for XiaoZhi AI and ESP-IDF |
| Flash Memory | 8MB PSRAM, 16MB Flash |
| Interface Ports | USB-C, GPIO headers, JTAG, I2C, SPI |
| Power Supply | 5V via USB-C or Li-Po battery connector |
| Dimensions | 98mm x 65mm x 12mm |
Anonymous
Mar 30, 2026
Rating: 4/5
Good learning tool for ESP32-S3
As a student, this board taught me a lot about driving E-Ink displays. The only downside is that the refresh rate is naturally slow due to the screen technology, not the board.
Anonymous
Mar 25, 2026
Rating: 4/5
Great hardware, documentation could be better
The board itself is high quality and the screen looks amazing. However, finding specific pinout details for the audio codec required some digging in the GitHub repo.
Anonymous
Mar 18, 2026
Rating: 5/5
Excellent value for prototyping
I used this to build a smart weather station. The WiFi connectivity is stable and the black and white screen is perfectly readable in direct sunlight.
Anonymous
Mar 10, 2026
Rating: 5/5
Voice features work out of the box
Impressed by how easily the voice interaction module integrated with my Home Assistant setup. The microphone sensitivity is adjustable and works well.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect for low-power IoT dashboards
The E-Ink display is crisp and the power consumption is incredibly low. Setting up the XiaoZhi AI voice interaction was smoother than expected using the provided examples.
Anonymous
Mar 07, 2026
Rating: 5/5
Robust and reliable
Been running this board for two weeks straight on a battery pack. The deep sleep modes combined with the E-Ink display make it last forever.
Q: Does the package include the antenna?
A: Yes, the onboard PCB antenna is integrated into the board. No external antenna is required for standard Wi-Fi and Bluetooth usage.
Q: Does this board support MicroPython?
A: Yes, the ESP32-S3 chip fully supports MicroPython. You can flash the firmware via USB-C and start coding immediately.
Q: Is there a built-in battery charging circuit?
A: Yes, it includes a TP4056-compatible charging circuit for single-cell Li-Po batteries via the dedicated 2-pin connector.
Q: What framework is best for the voice interaction features?
A: We recommend using the ESP-IDF framework for the most robust performance with XiaoZhi AI, though Arduino core wrappers are available for simpler implementations.
Q: Can I connect a color E-Ink display instead?
A: This board is specifically calibrated and pinned for the included 3.97-inch B&W panel. While the interface is standard SPI, driving a different color panel would require significant driver modifications.
Disposable Face Towel Storage Box Wall-Mounted for Bathroom
$8.42
Traditional Handmade Sheepskin Rattle Drum for Babies - Wooden Non-Toxic Teething Toy for Early Education (Intangible Cultural Heritage)
$25.90
Commercial Vegetable Cutter for Chili, Branches, Pandan Leaves; Dicing and Slicing Machine; 304 Stainless Steel Bean Cutter
$18,630.00
Heavy-Duty Paper Cutter Parts - 20-Year Shandong Store Blade Holder Wooden Block Replacement Pad
$50.00
Ammonia Decomposition Hydrogen Production Equipment, Ammonia Cracking Furnace, Liquid Ammonia to Hydrogen System, Air Separation Unit
$15,479.00
Strawberry Planting Trough - Soil-Free A-Frame Vertical Planter for Vegetables and Fruits
$14.80
Forged Steel Wheel Hub Bolts Grade 12.9 Extended Screws Fade-Resistant for VW, Audi, Mercedes-Benz, BMW
$95.00
Retainer Storage Case Orthodontic Appliance Soaking Cleaning Box Portable Invisible Aligner Holder for Dentures
$2.80
Baby Sheepskin Rattle and Shaker Stick - Brass and Peach Wood, Old-Style Handmade, Chewable, Newborn Gift Box
$74.00
Portable Orthodontic Retainer Cleaning Case - Rotating Travel Box for Invisible Aligners
$17.60
Full Denture Soaking and Storage Box with Filter Net for Retainers and False Teeth
$4.80
Anka Bella Face Painting Pen Facial Special Brush Embossing Pen Line Drawing Petal Professional Pigment Pen
$4.17
Balloon Warm Star Pre-sale: Do You Have an Illness? Phase 1 - Clash of Hearts Little Chu Su Series Merchandise
$16.00
Car Tire Stone Removal Hook - Portable Multi-function Tool for Cleaning Gravel from Tire Treads
$7.00
Imported TRANS Gearbox Eccentric Bearing 614 59 7187 616 0608 11-15 11 YSX
$183.00
Sichuan Rongxian Earthware Minfeng Wine Jar, Home Pottery with Porcelain Liner, 600-Jin Unglazed Sealed Fermentation Vessel for Homemade Liquor
$901.00
Garlic Drum Sorting Machine - Single-Clove Garlic Grading Separator and Onion Sizing Sorter - Factory Direct Sales
$38,080.00
Aizaofang Food-Grade Soft Silicone Handmade Soap Mold Korean Rectangular 3D Tree Shadow Silicone Mold
$23.00
JMC Yusheng & Yuhu Parts – Crankshaft Position Sensor, Signal Sensor, Original Equipment
$95.00
![[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set](https://www.gosteppe.com/cache/small/product/269490/legacy-main-410a655856aab1e0462d6c84.webp)
[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set
$6.63
Leak-Proof Retainer Case with Double-Layer Filter for Braces, Aligners, and Dentures - Portable Cleaning and Soaking Box
$22.50
Car Tire Stone Removal Hook Tool, Explosive Tire Prevention Gadget, Durable Zinc Alloy Tire Cleaning Hook for Automotive Care
$10.90
![[Damai Micro-Needle Hair Transplant Patent] Micro-Needle Planting (500 Units) - Suitable for Temples and Hairline](https://www.gosteppe.com/cache/small/product/269486/legacy-main-da7e0cd07f3b7d2f88646684.webp)
[Damai Micro-Needle Hair Transplant Patent] Micro-Needle Planting (500 Units) - Suitable for Temples and Hairline
$4,500.00
Japan Original FEC Lifting Chain - Specialized for Electric Hoist, 6.3mm Diameter Carburized Lifting Chain
$223.00
X-RAY Coating Thickness Gauge - Desktop Tianrui Professional Analyzer for Metal Electroplating Layers
$9,589.60
Heavy Truck Tire Cleaning Strips - Wear-Resistant Mud Flaps and Inner Tube Skirts - Decorative Tire Tassels
$9.05
Mixue Bingcheng Tanned Snow King Blind Box Figure Girls Gift Birthday Cute Plush Keychain Holiday Present
$21.01
Smart Battery Tester with Full Protection - Performance Detector for EV and Car Batteries
$269.00
Schneider Leakage Switch IC65 Vigi C120H 2/4P D80/100/125A Leakage Circuit Breaker
$1,347.75
Wenxin Tang Pumpkin-Shaped Ceramic Water Pot - Small Celadon Glaze Brush Washer for Chinese Calligraphy
$18.50
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
