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and students who want a guided introduction to Ethernet-based IoT
5 finger capacitive touch (but Raspbian only support 1 finger)
designed for seamless prototyping and enhanced functionality
press the switch to turn on the power
Flexible Connectivity & Voltage Selection
MQ-2 Smoke Sensor for Arduino 中高生 and students who want aThe MQ 2 smoke sensor reports smoke by the voltage level that it outputs. The more smoke there is, the greater the voltage that it outputs. Conversely, the less smoke that it is exposed to, the less voltage it outputs.
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