Walksnail WS-M181 GPS Module
The Walksnail WS-M181 GPS Module Delivers Fast, Reliable Positioning
The Walksnail WS-M181 GPS Module packs a full GNSS receiver and electronic compass into an 18 × 18 × 4.6 mm footprint weighing about 4.3 g, making it easy to fit into freestyle, cinematic, and long-range builds without adding meaningful weight. Built around the u-blox M10 platform's UBX-M10050 chipset, it works with GPS, GLONASS, BDS, Galileo, SBAS, and QZSS across six positioning-mode combinations, tracking up to 32 satellites at once across 72 search channels. An onboard IST8310 magnetometer supplies heading data alongside position, while a built-in backup battery keeps recent satellite data ready for a faster hot start the next time the aircraft powers on.
Six Satellite Systems for Reliable Positioning
Working across GPS, GLONASS, BDS, Galileo, SBAS, and QZSS gives the flight controller more visible satellites to choose from than a single-constellation receiver, which shows up as a faster first fix and steadier positioning once airborne. 72 search channels and an output frequency of up to 10 Hz keep position data current during fast maneuvers, while a measured maximum of 32 tracked satellites leaves margin even in built-up areas or under partial sky obstruction.
A Ceramic Antenna Built to Survive Real-World Builds
The module's ceramic antenna is finished with a sprayed protective coating that resists scratching and oxidation, so reception stays consistent even after it has been handled, mounted, and remounted between builds. At only about 4.3 g and 4.6 mm tall, it tucks onto a frame's top plate or canopy without disturbing the balance of a freestyle or cinematic quad.
Built-in IST8310 Compass for Accurate Heading
An onboard IST8310 magnetometer works alongside the GNSS receiver as an electronic compass, giving the flight controller heading information that complements GPS position data — useful for navigation features such as Return-to-Home that depend on knowing which way the aircraft is actually facing.
Built-in Backup Battery for Fast Hot Starts
A built-in backup battery keeps recently acquired satellite data available between flights, so the module can perform a hot start and re-establish a position fix more quickly than starting from a cold search — useful for pilots who swap packs frequently between flights.
Key Features of the Walksnail WS-M181 GPS Module
6 GNSS Systems
Built-in IST8310 Compass
Fast Hot Start
Compact 18 × 18 mm
Frequently Asked Questions About the Walksnail WS-M181 GPS Module
Yes. Because it uses a new 10th-generation GPS chipset, it requires Betaflight 4.3.0 or newer. Flight controller firmware older than 4.29 only supports the NMEA protocol and will not read the module's full data.
No. An IST8310 magnetometer is built into the module, so it provides both GNSS position and compass heading data over the same connection — no separate compass board is required.
It connects through a JST-SH 1.0 mm 6-pin cable (included), broken out to TX, RX, GND, 5V, SCL, and SDA pads on the module itself for wiring directly to a flight controller's GPS/compass port.
Walksnail WS-M181 GPS Module Dimensions
Walksnail WS-M181 GPS Module Specifications
Model | Walksnail WS-M181GPS |
Chip | u-blox M10 platform, UBX-M10050 GNSS chipset (10th generation) |
Frequency | GPS L1, GLONASS L1, BDS B1, Galileo E1, SBAS L1, QZSS L1 |
Positioning Modes | 6 combinations (default: GPS + GLONASS + BDS) |
Max. Tracked Satellites | 32 (measured) |
Power | 5V |
Size | 18mm x 18mm x 4.6mm |
Antenna | Ceramic Antenna (Oil Spraying Process, Prevent Scratching and Oxidation) |
Receiving Channels | 72 Search Channels |
Compass | IST8310 |
Connector | JST-SH 1.0mm 6-pin (TX, RX, GND, 5V, SCL, SDA) |
Baud Rate | 115200dps |
Output Protocol | Dual-Protocol GNSS Output (NMEA Compatible) |
Output Frequency | 1Hz-10Hz (Default 10Hz) |
Speed Accuracy | 0.05m/s |
Horizontal Positioning Accuracy | 2D ACC1.5m (Open Air) |
Receiving Sensitivity | Trace-162dBm; Capture -160dBm |
Weight | Approx. 4.3g |
Max. Altitude | 50000m |
Max. Speed | 500m/s |
Max. Acceleration | 4G |
Operating Temperature | -40℃ ~ +85℃ |
Storage Temperature | -40℃ ~ +105℃ |
Walksnail WS-M181 GPS Module Package Includes
- 1x Walksnail WS-M181 GPS Module
- 1x JST-SH 1.0 mm 6-pin connection cable
