Walksnail WS-M181 is a GPS module with an integrated compass. The module uses the modern u-blox M10 chip, which surpasses the previous M8 generation in accuracy and speed of satellite acquisition. The QMC5883 compass is particularly appreciated in combination with the iNav firmware and advanced flight stabilization.
The advantage of the GPS module is its large ceramic antenna and small overall dimensions of 18x18x4.5mm. The GPS module is connected via UART (RX, TX pins). The compass is connected via I2C bus (DA, CL pins).
The item has been opened. The GPS module is like new and shows no signs of use.