M5Stack GPS Module v2.0 with External Antenna (AT6668)
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Description
The GPS Module v2.0 is a high-performance GNSS positioning module built around the AT6668 chip for accurate and reliable satellite positioning. It supports multi-frequency and multi-mode GNSS reception across GPS/QZSS, BD2, BD3, GLONASS, GALILEO, and QZSS, enabling multi-system joint positioning or single-system independent positioning with strong anti-interference capability.
The GPS Module v2.0 includes an external active GPS/BD antenna with a 1 m cable, a DIP switch for flexible TX/RX and PPS pin routing, and PPS output for precise timing. It is designed for stackable M5Stack host systems and is suitable for navigation, IoT positioning, remote monitoring, smart city, home automation, and industrial automation projects.
Notice: This product is EOL (End of Life). For new designs, consider Module GPS v2.1 as the newer version.
When used with the Basic host, G12 is a strapping pin during startup and must remain low; switching it ON during startup may prevent the device from booting. G25 is shared between PPS output and the speaker input, and Core2 shares G2 with the speaker pin, so only one of the conflicting functions should be used at a time.
Features
- GPS Module v2.0 supports GPS/QZSS, BD2, BD3, GALILEO, and GLONASS positioning systems.
- Multi-frequency, multi-system GNSS reception with 50 channels.
- Positioning accuracy below 1.5 m (CEP50) and update rate up to 10Hz.
- External active GPS/BD antenna through an SMA connector.
- PPS signal output for precise timing applications.
- DIP switch routing for selectable UART and PPS pin groups.
- Supports module stacking and development with UiFlow1, UiFlow2, and Arduino IDE.
Specifications
| Type | GNSS positioning module with external active antenna |
| SoC | AT6668 |
| Supported satellite systems | GPS/QZSS/BD2/BD3/GAL/GLO |
| Frequency bands | BDS B1I+B1C; GPS/QZSS/SBAS L1; GALILEO E1; GLONASS R1 |
| Channels | 50 channels |
| Positioning accuracy | <1.5 m (CEP50) |
| Positioning update rate | Up to 10Hz |
| Protocol | NMEA0183 4.1 |
| Communication method | UART 115200bps @ 8N1 |
| Sensitivity | Tracking -162dBm; acquisition -160dBm; cold start -148dBm |
| Start time | Cold start 23 seconds; hot start 1 second |
| Power consumption | Standby current DC 5V/42.78uA; operating current DC 5V/41.96mA |
| Module dimensions | 54.0 x 54.0 x 13.1mm |
| Module weight | 15.3g |
| Package size | 126.0 x 68.0 x 22.0mm |
| Package weight | 78.0g |
Applications
- Vehicle positioning and navigation systems.
- IoT positioning devices and remote monitoring equipment.
- Industrial automation and robot positioning.
- High-precision surveying and geographic information systems.
- Smart city and home automation systems that need the GPS Module v2.0 for reliable GNSS data.
Product List
- 1 x Module GPS v2.0
- 1 x External active GPS/BD antenna (length: 1 m)
Other Content
The GPS Module v2.0 uses switchable M5-Bus pins marked SW to adapt GNSS_TX, GNSS_RX, and PPS routing to different host controllers. Before development, confirm the host model, DIP switch positions, and firmware pin configuration so the selected UART and PPS signals match the application.
Compared with the earlier Module GPS based on NEO-M8N, the GPS Module v2.0 adds DIP switch pin routing and improves positioning accuracy from 2.5 m to 1.5 m in the product comparison data.
Resources
Module GPS v2.0 Product Documentation
Module GPS v2.0 PinMap Note Image
Module GPS v2.0 Model Size Image
CASIC Multi-mode Satellite Navigation Receiver Protocol Specification PDF
Module GPS v2.0 TinyGPSPlus Arduino Library
Module GPS v2.0 UiFlow2 Documentation
FAQ
Which satellite systems are supported?
The GPS Module v2.0 supports GPS/QZSS, BD2, BD3, GALILEO, and GLONASS positioning systems.
What antenna is included?
The package includes an external active GPS/BD antenna with a 1 m cable.
Can it provide precise timing?
Yes. The module supports PPS output for precise timing applications, but confirm the host pin conflicts before enabling PPS.
What should be checked before using the DIP switch?
Check the host controller pin map and avoid enabling conflicting speaker, PPS, or boot strapping functions at the same time.
Shipping & Order
Review processing, shipping rates, fulfillment locations, customs, taxes, and delivery issue guidance.
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- 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.
- If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.
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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.








