演示子板包含温度和光传感器、一个三轴加速计、8 个三色 LED 以及两个按钮开关。
The demonstration daughterboard contains temperature and light sensors, a three-axis accelerometer, eight tricolour LEDs, and two pushbutton switches.
其中一些单位还提出选择一个恐慌按钮或跌落传感器，在紧急情况下。
Some of these units also come with the option of a panic button or a fall sensor in case of emergency.
一个按钮和传感器的范围可包括个人报警按钮，传感器，检测气体或烟雾，哪些可以检测如下床行动。
A range of buttons and sensors are available including personal alarm buttons, sensors which detect gas or smoke and those which can detect actions such as getting out of bed.
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