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--- amc2022:grouph:mq7 [2022/08/01 19:43] – created gustavo001
+++ amc2022:grouph:mq7 [2023/01/05 14:38] (current) – external edit 127.0.0.1
@@ Line 2: / Line 2: @@
 {{ :amc2022:grouph:mq-9-1.jpg?nolink&400 |}}
+|**//Figure 1//** MQ9 Sensor. Source: https://www.instructables.com/How-to-Calibrate-Use-MQ9-Gas-Sensor-W-Arduino/|