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cheers ron. the coding of the arduino isnt the problem just hooking up the the sensor with the right pins is what im having trouble wth. because the datasheet is so cryptic(to me anyway) im not sure which pins are for power and ground and which pin is for the output(to be inputted to the arduino) also hooking up resistors etc..
back to electronics 101 i have to go...
MR513 consists detecting
element and compensation element, both elements are placed in a wheatstone bridge
circuit, when the alcohol concentration appears, the detecting element resistor reduces,
bridge circuit voltage output changes, the voltage will increase according to the alcohol
concentration increase, the compensation element refers to temperature compensation
affection.
Hi guys !
I'm working on the Mr513 gas sensor and have been reading your comments which helped me a lot!
Tommowas, what was your conclusion ? Have you managed to get so good results?
Reloadron, When i tried to measure the resistance between C1 & C2 and D1 & D2 i have nothing on the ohmmeter ! I don't understand why i have not approximately 2 K Ohm across each..?
Thank you to share your experiences.
Tanyon.