I'm trying to get readings from the CARBON MONOXIDE GAS SENSOR - MQ7. According to the datasheet the heater needs to be on for 60s with 5v and then 90s with 1.4v. Here is my code: // to the pins used: const int triggerPin = 12; const int sensorPin = 0; int val = 0; int counter = 0; void setup() …

MQ-7 CARBON MONOXIDE GAS SENSOR

system February 19, 2015, 6:19pm 12

Did MQ sensors used in out door ?

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