Introduction - Keyestudio KS4028 Manual

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Project 6: Adjust angles of servo .................................................................. 282
Project 7: 130 Motor ......................................................................................... 288
Project 8：Lithium Battery Power Module ................................................ 298
Project 9：1602 LCD ......................................................................................... 302
Project 10：Steam Sensor ............................................................................... 310
Project 11：Rains Alarm .................................................................................. 317
Project 12：Analog Gas（MQ-2）Sensor .................................................. 322
Project 13：Gas Leakage Detector ............................................................... 331
Project 14：DHT11 Temperature and Humidity Sensor ........................ 336
Project 15：Temperature and Humidity Display ..................................... 347
Project 16：Multiple Functions ..................................................................... 351
Project 17：BT-controlled LED ...................................................................... 354
Project 18：Smart Home ................................................................................. 358
9.Resources: ................................................................................................................. 361

1.Introduction：

Fueled by the
automatically controlled remotely by smart phones and other devices have
become more common. For the same reason, they have increasingly
rapid development of technology, smart homes
3