M5Stack Atom EchoS3R Smart Speaker Dev Kit
📦 Location of the warehouse: US
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M5Stack Atom EchoS3R Smart Speaker Dev Kit
Unleash Intelligent Voice Control with Atom EchoS3R
The Atom EchoS3R Smart Speaker Dev Kit is an exceptionally compact and fully programmable IoT voice interaction controller. It’s engineered for cutting-edge intelligent voice control and seamless human-computer interaction across various applications. At its core, the device is powered by the robust ESP32-S3-PICO-1-N8R8 dual-core processor, offering reliable 2.4GHz Wi-Fi connectivity and an integrated 8MB Flash + 8MB PSRAM. This powerful combination ensures outstanding performance and unparalleled scalability for all your development projects.
Experience crystal-clear communication with its professional audio system, which includes an ES8311 mono codec, a highly sensitive MEMS microphone, and a robust NS4150B power amplifier. This setup guarantees precise voice capture and high-fidelity audio output, making the Atom EchoS3R the ideal choice for creating advanced AI voice assistants, sophisticated smart home control systems, and innovative IoT solutions.
Core Features
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Advanced SoC: ESP32-S3 dual-core Xtensa LX7 operating at 240MHz for superior processing power.
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Generous Memory: 8MB Flash + 8MB PSRAM, providing ample space for complex applications.
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Premium Audio System: Features an ES8311 codec and a MEMS microphone with 65dB SNR for excellent sound quality.
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Robust Sound Output: Equipped with an NS4150B amplifier and an 8Ω@1W speaker for clear and powerful audio.
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Integrated IR Transmitter: Built-in infrared functionality for versatile device control.
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Flexible Expansion: Offers expandable pinouts for effortless integration with external peripherals.
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Broad Platform Support: Compatible with Arduino, UiFlow2, ESP-IDF, and PlatformIO for diverse development environments.
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Ultra-Compact Design: Measuring just 24 × 24 × 16.8 mm and weighing 9.3 g, it is perfect for space-constrained projects.
Technical Specifications
| Parameter | Details |
|---|---|
| SoC | ESP32-S3-PICO-1-N8R8, Dual-core Xtensa LX7, up to 240MHz |
| Memory | 8MB Flash + 8MB PSRAM |
| Audio Codec | ES8311, 24-bit resolution, I2S protocol |
| Microphone | MEMS mic, 65dB SNR |
| Speaker | NS4150B amplifier + 8Ω@1W speaker |
| Power Input | DC 5V |
| Dimensions | 24.0 × 24.0 × 16.8 mm |
| Weight | 9.3 g |
| Operating Temp | 0 ~ 40°C |
Versatile Application Scenarios
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AI Voice Assistants: Develop custom voice-enabled devices with intelligent capabilities.
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Smart Home Control: Implement voice commands for controlling lighting, appliances, and security systems.
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IoT Development: Accelerate rapid prototyping and deployment of innovative IoT products.
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Education & Research: Ideal for projects involving embedded AI and advanced voice recognition.
Atom EchoS3R vs Atom Echo Comparison
| Feature | Atom EchoS3R | Atom Echo |
|---|---|---|
| SoC | ESP32-S3-PICO-1-N8R8 (Dual-core Xtensa LX7, up to 240MHz) | ESP32-PICO-D4 |
| Flash | 8MB | 4MB |
| PSRAM | 8MB | None |
| Audio Solution | ES8311 codec + NS4150B amplifier | NS4168 amplifier + SPM1423 mic |
| Microphone | MEMS microphone (65dB SNR) | SPM1423 microphone |
| Speaker | NS4150B amplifier + 8Ω@1W speaker | Built-in speaker |
| Infrared Transmitter | ✅ Integrated | ❌ Not available |
| RGB LED | ❌ None | ✅ WS2812 x1 |
| Development Platforms | Arduino, UiFlow2, ESP-IDF, PlatformIO | Arduino, UiFlow, ESP-IDF |
| Dimensions | 24 × 24 × 16.8 mm | Similar (slightly different) |
| Weight | 9.3 g | Slightly lighter |
Comprehensive Tutorials & Development Resources
The Atom EchoS3R offers more than just powerful hardware; it comes with extensive tutorials and robust software support to jumpstart your development process:
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Arduino IDE Quick Start: A detailed, step-by-step guide to programming and controlling your Atom EchoS3R.
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XiaoZhi Voice Assistant: Build your custom voice assistant by easily flashing firmware using M5Burner.
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M5Unified & M5GFX Libraries: Access official libraries for streamlined graphics and unified device management.
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PlatformIO Environment: Utilize pre-configured settings for a smooth and efficient development experience.
These comprehensive resources empower both beginners and seasoned professionals to bring their IoT voice projects to life with ease.
Effortless Firmware Flashing
Entering Download Mode is straightforward and quick:
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Press and hold the reset button for approximately 2 seconds until the internal green LED illuminates.
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Release the button; your device is now ready for firmware flashing.
This optimized process ensures rapid prototyping and simple updates for all developers.
1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
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Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
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Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
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We can ship all in-stock orders within 1 business day as your order has been confirmed.
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All items are inspected before dispatch and are carefully hand-packed.
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With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
2. Shipping Options & Rates (United States)
(For Products in the US Warehouse & Global Warehouse)
2.1 Continental U.S. (50 States)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| USPS Ground Advantage | $0.00 - $5.00 | $9.99 | 3-7 Business Days |
| USPS Ground Advantage | $5.00 - $50.00 | $5.99 | 3-7 Business Days |
| USPS Ground Advantage | Over $50.00 | Free | 3-7 Business Days |
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USPS Priority Mail (Faster Option) |
$0.00 - $50.00 | $19.99 | 1-4 Business Days |
| USPS Priority Mail | Over $50.00 | $17.59 | 1-4 Business Days |
2.2 Non-Continental U.S.
(Includes Alaska, Hawaii, Puerto Rico, Guam, Virgin Islands, etc.)
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| USPS Ground Advantage | $0.00 - $5.00 | $9.99 | 5-9 Business Days |
| USPS Ground Advantage | $5.00 - $70.00 | $7.99 | 5-9 Business Days |
| USPS Ground Advantage | Over $70.00 | Free | 5-9 Business Days |
Important Notice:
- Before placing your order, please check the inventory location on the product page to confirm the delivery timeframes.
- For products stored in the Global Warehouse (Shenzhen), we will ship them directly from China.
- If you place an order for products from both the U.S. warehouse and the Global warehouse, we will ship your order separately: the products from the Global warehouse will be sent from China, and the products from the U.S. warehouse will be sent from the U.S. warehouse.
3. Warehouse Locations
Our products are stored in both our U.S. and Global warehouses to provide more flexible logistics solutions. On each product's description page, we indicate the specific warehouse location.
3.1 U.S. Warehouse
For products stored here, we use USPS for shipping. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days.
3.2 Global Warehouse (China)
Located in Shenzhen, Guangdong.
For orders shipping from our Global Warehouse, we typically use YunExpress. Given the complexities of international shipping, the estimated delivery time is around 10 business days, though this may vary due to customs processes.
4. Customs and Taxes
Effective Date: December 10, 2025
At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.
1. Warranty Policy
A. Standard Limited Warranty (Global & US)
For customers in the United States, Asia, and other non-EU regions:
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Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.
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Coverage: This warranty covers defects in material and workmanship under normal use.
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Resolution: We will repair or replace defective units at no charge.
B. Statutory Rights for EU/UK Customers (EU Compliance)
If you are a consumer residing in the European Union or the UK purchasing from our global site:
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Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.
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Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.
C. Warranty Exclusions (Applies to ALL Regions)
Warranty coverage is VOID if the damage is caused by:
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Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.
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Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.
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Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).
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Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.
Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.
2. Return & Refund Policy
A. Return Window
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Standard: You may request a return within 31 days of receiving your order.
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EU Customers: You have the statutory right to withdraw from the contract within 14 days of receipt without giving a reason.
B. Refund Conditions & Restocking Fees
To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.
1. Full Refund (100%)
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The item is Brand New, Unopened, and Unused.
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The original packaging is intact and sealed.
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All accessories are present.
2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:
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Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.
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Damaged Packaging: Original box is torn, written on, or missing.
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Technical Modification: The device has been powered on, programmed/flashed, or soldered.
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Broken Seals: Anti-static bags or security seals have been opened.
Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.
C. Shipping Costs
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Defective / Wrong Item: OpenELAB covers the return shipping cost.
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Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.
3. Return Process (RMA)
To ensure a smooth return process, please follow these steps:
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Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.
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RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.
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Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).
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Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
