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Sometimes LED feedback isn't enough、like when you're flying around in a lab or a living room. With the buzzer deck you'll get audio feedback on system events、like low battery or charging completed. Or why not create your own melodies that will play while you're buzzing around. To get started using the buzzer deck there's already a few melodies pre-programmed in the Crazyflie 2.0 latest firmware.。This product is intended to be used together with the Crazyflie 2.0 nano quadcopter and uses its expansion board system. Please have a look at the buyers guide for more info about the Crazyflie 2.0 ecosystem. For more information about how to use the expansion decks check out the getting started with expansion decks page.。Features：Low profile piezo buzzer for tone and melody generation。Automatic detection of deck。Specifications。Based on the CMT-1203-SMT。1-wire memory for automatic deck detection。Mechanical specification。Weight：1.8g。Size(WxHxD)：25x27x4mm。Designed for mounting above or under the Crazyflie 2.0。Part list。1×Buzzer deck

。Description。Thermocouples are very sensitive， requiring a good amplifier with a cold - compensation reference. The Grove - Temperature Sensor USES a K type thermocouple Temperature detection， with a Thermistor to detect The ambient Temperature as Temperature compensation. The detectable range of this Sensor is -50-600℃ ， and The accuracy is ±(2.0% + 2℃).。Specifications。Voltage：3.3 ～ 5V。Max power rating at 25℃：300mW。Operating temperature range：-40 ～ +125 ℃。The temperature measurement range is(-50 ～ +600℃)。Amplifier output voltage range(0 ～ 3.3 V)mv。Cold junction compensation(environment temperature measurement)。Thermocouple temperature measurement accuracy of + / - 2.0%(+ 2 ℃)。Package Include：Grove - High Temperature Sensor x1。Thermocouple Temperature Sensor x1。24AWG Grove Cable - 4P-4P-2.0-200mm x1