arduino Questions

silly question. Trying to build something that requires an arduino to take a temperature measurement, and pwm an Item dependant on that temp reading. so the question is how many reads and adjustments per second can I aim for? I was hoping to get the 1 MHz area but am assuming less than that at this time

caitlinsdad8 months ago

You would have to look at the temp sensor you are using. Most are the analog type and you can only get a reading from them every 2 seconds or so. Your basic DHT 11/22 or TMP 36 are like that but there may be faster sensors out there. If you are looking to do something like heating/cooling fan/heater control or sous vide cooking controller, look into PID or control feedback algorithms which anticipate temp changes and react accordingly. Good luck.

plucas1 (author)  caitlinsdad8 months ago

am hoping to get something that reads a few times a second..... any idea? would a kprobe offer better reads?

is there a separate adc that can take the reads and then convert to digital for arduino giving better reads?

Maybe hack one of those IR point and shoot temperature guns, but it all depends on what you are trying to measure and how critical of an application it is.