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GND: The ground (0 V) connection for your power supply
The HRLV-MaxSonar-EZ3 is a narrow beam sensor with good lateral object rejection
Your I²C or SPI control source must also share a common ground with this board
so the same code will generally work on all four devices
Pololu USB-to-Serial Adapter hub-zubehoer GND: The ground (0 V)Note: This product is not recommended for new designs (NRND) based on Silicon Labs designating the CP2102 as NRND. Please see the CP2102N USB to Serial Adapter Carrier for a similar, newer adapter with a USB Micro B connector. The Pololu USB to serial adapter is great for connecting microcontroller projects to a personal computer. The adapter uses 3. 3 V signal levels so you can connect it directly to any microcontroller running at up to 5 V without
