@jimit 在 Connecting M5Stack to an MQ-2 smoke/gas sensor 中说:
@suntzu Hi Suntu,
Try sourcing the 5V from the positive terminal on the Grove connector.
It worked like a charm! Thank you again. It's time to rewrite my sketches for M5Stack.
@jimit 在 Connecting M5Stack to an MQ-2 smoke/gas sensor 中说:
@suntzu Hi Suntu,
Try sourcing the 5V from the positive terminal on the Grove connector.
It worked like a charm! Thank you again. It's time to rewrite my sketches for M5Stack.
@JimiT Yes, I used Pin 36 and 21.
Absolutely, I will post the finish product and pictures in the Projects section.
@jimit 在 Connecting M5Stack to an MQ-2 smoke/gas sensor 中说:
@suntzu Hi Suntu,
Try sourcing the 5V from the positive terminal on the Grove connector.
It worked like a charm! Thank you again. It's time to rewrite my sketches for M5Stack.
@JimiT I will try that when I get back home from the office. And I will make sure to keep you updated.
Thank you so much, Jimi.
I am trying to port my ESP8266 project to M5Stack but for the life of me I could not figure out how to connect the wires between M5Stack and the analog MQ-2 gas sensor.
This is my wiring for ESP8266 that perfectly works:
MQ-2 Sensor -> ESP8266
A0 -> A0
D0 -> D0
VCC -> VIN (5.5V)
GRD -> GRD
This is what I have tried in M5Stack but did not work. The sensor's D0 LED and power LED do not even lit on.
MQ-2 Sensor -> M5Stack
A0 -> Pin 36 (I also have tried 35)
D0 -> Pin 21 (I also have tried 16)
VCC -> 5V
GRD -> G
How do I wire the analog MQ-2 sensor To M5Stack? Is it doable? Any guidance please?