Hello,
I want to measure the level of my water tank in my campervan. A probe is already installed and the level 0-100% equals the resistance 190-0 Ohm which I want to measure with the main controller.
Additionally I would like to measure the temperature at certain places in the van (might be 4-6 places/station). I understand that the sensor DHT11/DHT22 can do this job, but what is the best approach for transferring the temperature to the main controller while having a good battery lifespan on the temperature sensor?
Thank you
I have done exactly this with my Van (fuel tank) and my Variable resistor is 0-200ohm
Except I used a Raspberry Pi and an ADC but obviously an Arduino would be easier. You just need a voltage divider
I've included the schematic in my video
Post what you have researched so far. A schematic is useful. Details on how it is to be powered. Get the datasheets for components. Post your code in code tags. See the sticky on how to post on the forum. There are lots of people doing very similar things so you should get a good way yourself
