M5Stack Atom EchoS3R Smart Speaker Dev Kit
📦 Location of the warehouse: China
Free Shipping from $50 in the US, $70 for non-continental US
- US Delivery Time: 2~7 Business days.
- Non-Continental US Delivery Time: 3~9 working days.
- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished, usually within 10 working days. Special pre-sale products will specify the expected arrival time in the description.
- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.
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 for Orders Inside U.S.
(For Products in the U.S. Warehouse, Shenzhen Warehouse)
2.1 Shipping options for an order value under $5 inside the U.S.
Shipping Options:
| Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
|
USPS Ground Advantage |
$9.99 Arrive in 3-7 Business Days |
$9.99 Arrive in 5-9 Business Days |
|
UPS Express |
$15.99 Arrive in 2-4 Business Days |
$19.99 Arrive in 3-7 Business Days |
2.2 Shipping options for an order value between $5 and $50 inside the U.S.
Shipping Options:
| Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
|
USPS Ground Advantage |
$5.99 Arrive in 3-7 Business Days |
$7.99 Arrive in 5-9 Business Days |
|
UPS Express |
$12.99 Arrive in 2-4 Business Days |
$15.99 Arrive in 3-7 Business Days |
2.3 Free shipping options for an order value of above $50 inside the U.S.:
| Free Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
|
USPS Ground Advantage |
Free above $50 | Free above $70 |
|
UPS Express |
+ $ 9.99 for Above $50 | + $ 12.99 for Above $50 |
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 Shenzhen warehouse, we will ship them directly from Shenzhen, China.
- If you place an order for products from both the U.S. warehouse and the Shenzhen warehouse, we will ship your order separately: the products from the Shenzhen warehouse will be sent from Shenzhen, and the products from the U.S. warehouse will be sent from the U.S. warehouse.
3. International Warehouse
Our products are stored in both our U.S. and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.
3.1 U.S. Warehouse
3.2 Chinese Warehouse
We will only arrange YunExpressexpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50. Orders directly shipped from our Shenzhen warehouse are handled by YunExpress. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, the products will first be shipped from China to our U.S. warehouse and then shipped to the final destination.
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
We aim to minimize delays and ensure compliance, but OpenELAB does not guarantee exemption from U.S. customs charges.
4.2 Are U.S. sales taxes included when the Customer places an order?
If no sales tax is charged at the time of purchase, you may still be responsible for use tax according to your state’s tax laws. OpenELAB is committed to complying with the U.S. Supreme Court's decision in South Dakota v. Wayfair, Inc. and applicable local regulations.
4.3 Are there any other fees besides tax?
Please note that international shipments to the U.S. may occasionally incur customs clearance charges or carrier-imposed fees (e.g., by DHL, FedEx, or USPS). These charges are not controlled by OpenELAB and may vary based on the delivery carrier and U.S. import classification.
Effective Date: September 16th, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 30 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.com for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in the US.
- If a return is requested due to customer reasons (e.g., change of mind, incorrect order, etc.), both the original shipping cost and the return shipping cost will be deducted from the refund amount.
- For returns due to customer reasons, we will generate and provide a return shipping label.
Payment Platform Fees
For all refunds requested due to customer reasons, a standard service fee will be deducted from the refund amount, which is charged by the payment platforms. The specific fees are as follows:
Shopify Payments: 2.9% + $ 0.3
PayPal: 4.4%
