M5Stack M5Stamp-S3A ESP32S3 Module
M5Stack M5Stamp-S3A ESP32S3 Module
⚙️ Stamp-S3A Embedded Module
Introducing the Stamp-S3A, a cutting-edge embedded module powered by the Espressif ESP32-S3FN8.
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🖥️ 240 MHz Xtensa® 32-bit LX7 dual-core processor → exceptional performance for diverse applications
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💾 8 MB Flash memory → ample storage for projects
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🌈 Programmable RGB LED + 🔘 User button → enhanced interactivity
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📡 Innovative 3D antenna design → superior wireless communication, ideal for IoT
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🔌 23 GPIOs available → easy integration via 1.27 mm / 2.54 mm pitch SMT/DIP pin headers or sockets
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🚀 Enables developers to rapidly build & deploy applications with minimal effort
Features
- ESP32-S3FN8 (2.4 GHz Wi-Fi)
- Dual-core processor for multitasking capabilities
- Robust toolkit supporting multiple application forms (SMT, DIP, fly-wire, etc.)
- Integrated components: programmable RGB LED and physical button
- Development support for Arduino IDE
- Compatible with PlatformIO
Includes
- 1 x Stamp-S3A module
- 1 x User manual
- 1 x Screw (M2.5 x 16)
- 1 x 12.5 x 5.8 mm Heatsink
- 1 x Key screw (1 piece for M2 screw)
Applications
- Smart home devices
- Industrial control terminals
- Wearable electronics
Specifications
| Specification | Parameter |
|---|---|
| Spec model | ESP32-S3FN8 |
| DC-DC | MUN3CAD0-5C |
| Flash | 8 MB |
| Input Voltage | DC 5V |
| Touch Sensor | SPI, I2C, GPIO, Pulse Counter |
| IO Interfaces | 23 |
| IO Pitch | 1.27 mm and 2.54 mm |
| LCD Pin Count | 0.6 mm 12P to 2P 0.8 P |
| Operating Temperature | 0 – 40 °C |
| Product Size | 30.0 × 47.7 mm |
| Product Weight | 2.9 g |
| Package Size | 183.0 × 91.0 × 10.5 mm |
| Weight | 17 g |
Product Comparison
| Product Comparison Item | Stamp-S3A | Stamp-S3 |
|---|---|---|
| RGB LED Control Logic | RGB LED is variously multiplexed with recent PCB bus protocols | Standard design |
| Antenna Design | Optimized antenna design with better performance | Conventional antenna design |
| Improved Feed Range | Improved range (40 – 30 m) | Standard specification |
| Power Supply | USB-Power Supply: DC 5V, 500mA | USB-Power Supply: DC 5V, 500mA |
Learn
Download Mode
To enter Download Mode, follow these simple steps:
- Press and hold the G0 button on the Stamp-S3A.
- While holding the button, power on the device.
- After the power is applied, release the G0 button.

Additional Notes
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ESP32-S3 Pins G0 and G46: These pins are strapping pins that determine the boot mode. By default, G0 is pulled up while G46 is internally pulled down, allowing the chip to boot from SPI Flash normally. Be cautious not to pull G46 high before the chip boots; otherwise, it will not start correctly. Please refer to the Strapping-Pin section of the ESP32-S3 datasheet for detailed information.
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An SPI interface for a TFT display is reserved on the back of the module. The compatible FPC connector specifications are 8 PIN and 12 PIN.
Schematics

PinMap

Model Size

Datasheets
Softwares
Arduino
UiFlow2
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
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- Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
- In-stock orders are usually dispatched within 1 business day after order confirmation.
- Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
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If you require expedited shipping, please contact our customer support team at info@openelab.io for a customized quote based on your destination.
2. Shipping Rates & Options
Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.
2.1 Germany Domestic Shipping
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0.00 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0.00 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 Selected EU Countries / Regions
Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| FedEx Regional Economy | €0.00 - €100.00 | €7.95 | 3-5 Business Days |
| FedEx Regional Economy | Over €100.00 | Free | 3-5 Business Days |
EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0.00 - €45.00 | €4.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0.00 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0.00 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.
2.4 International Destinations Outside the EU
For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:
| Order Amount | Shipping Cost |
|---|---|
| €0.00 - €300.00 | €19.95 |
| Over €300.00 | Free |
For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.
3. Warehouses & Fulfillment
Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.
3.1 Munich Warehouse
For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.
3.2 Arlington Warehouse
For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.
3.3 Shenzhen Warehouse
For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
4. Inventory, Pre-orders & Split Shipments
- Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
- Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
- Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.
5. Customs, Taxes & Delivery Issues
5.1 Customs and Taxes
For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.
5.2 Damaged, Delayed, or Lost Parcels
Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.
If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@openelab.io. We will assist you in checking the shipment status with the courier.
5.3 Incorrect Address or Failed Delivery
If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.
6. VAT
For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.









