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The RasPiGNSS “Betelgeuse” is an expansion board or module (also known as a “HAT”) for the well-known Raspberry Pi mini computer.
It enables precise positioning tasks to be performed on the Raspberry Pi, which is due to its miniature size and modest power consumption ideally suited as a mobile GNSS recording and navigation device. Using this HAT with suitable software, the Raspberry Pi is capable of receiving and processing signals from the GPS (“Navstar GPS”), GLONASS, GALILEO, and BEIDOU navigation satellite systems.