安卓手机使用的计步器，通过加速度传感器感应步数(Android mobile phone pedometer use, through the induction step acceleration sensor)

大棚环境监测系统，esp8266 +AM2303+MQ-2 数据通过Android上位机接收，OLED本地显示传感器数据(The greenhouse environment monitoring system, the esp8266 +AM2303+MQ-2 data is received by the Android host computer, and the OLED local display sensor data)

一个很详细的教程，能够实现土壤湿度的一个检测，通过arduino,并且有实际的教程，包括原理的说明和连线。(A very detailed tutorial that enables a test of soil moisture, through Arduino, and has practical tutorials, including a descr iption of the principles and wiring.)