sensor MQ-3

Account cancelled 2018-02-19 00:59:08 1118 Views1 Replies
How to use an MQ3 sensor with arduino to light LEDs.
please, I need your help.

2018-03-21 17:21:26 You can refer to the wiki of MQ3 https://www.dfrobot.com/wiki/index.php/ ... KU:SEN0128, and edit the code that when the analog signal is higher than a threshold value then the LED light up. robert.chen