The study compares the accuracy of two GPS sensors, the budget NEO-6M and the more expensive Walksnail WS-M181. The study has been aimed at evaluating their accuracy in various operating conditions, including open spaces, urban environments with many buildings, and forest areas. To do this, both sensors have been connected to a laptop via the UART interface, which allowed for the constant real-time recording of coordinates. The tests have established that the NEO-6M sensor has comparable accuracy to its more expensive counterpart. The disadvantages of the NEO-6M sensor are its long time of cold start satellite search and response frequency. However, these disadvantages are not critical in the case of using GPS on static points.
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