空气质量传感器 MQ135传感器 有害气体检测模块 包括模拟量及数字量的输出程序-Air Quality Sensor MQ135 sensor and hazardous gas detection modules including analog and digital output program

MQ135氨气模块，能够精准的测试出氨气浓度，并通过ADC模式上传给开发板。(MQ135 ammonia module, can accurately test the ammonia concentration, and uploaded to the development board through ADC mode.)