Hello, here is a link to the company I purchased the anemometer from www.inspeed.com/

Hmmm sounds like you are missing triggers. You are using some type of switch denounce method, correct?

Anemometers are commonly used to measure wind out doors so yes

haha... i know what they're for... just thinking i could program it with an arduino to do what i want... if i get one with the directional dohickey, if the wind is X and the direction is Y, then close, otherwise, the wind will sort of 'defect' off the panels. i'm surprised there are not more youtube videos for this purpose.

I may have misspoke in the video. You can use either the rising or falling edge.

No I don't

Are asking about the software on the Arduino. I wrote that for the video and you can access the code on my blog (see link in video description)

By value do you mean forward voltage drop? You can use any standard diode but you do want to make sure that the forward voltage drop is not so high that it reduces the voltage of the pulse so much that it is lower than the "high" threshold of whatever digital pin you are using to detect the pulse. I typically just make sure the forward voltage drop is

Thank you very much for the quick reply. I initially used a Fairchild 1N4001 diode, that is typically used as an AC rectifier, and got some unexpected results. I changed it to a small LED and your program works fine on the Uno, as written. I want to use the anemometer to close my patio awning when the wind speed hits a predetermined threshold, e.g. aSetting >20 mph, and trigger a relay. I also want to use the Adafruit Feather Huzzah and relay wing, instead of the Uno, because 1) small size of the microprocessor and relay, and 2) wifi capability to transmit the data to a Raspi Pi and display. I notice that your code compiles and loads to the feather huzzah, but I am not getting anything on the serial monitor other than a couple junk characters? I will try to modify the code to get the feather to work... wish me luck.

Rectifier diodes are typically made for pretty high forward currents and this application is fairly low current so maybe that is the issue. I don't have any experience with the Huzzah, but the strange characters sounds like a baud rate setting mismatch. Sounds like an interesting project, good luck on it.

Thanks. The Feather Hazzah and wings are pretty cool, and the on-board wifi is a nice feature, like the new Raspi Zero. I checked the baud rate mismatch, and the outputs, just to see if the program was working but not printing correctly. It does send the junk message to the serial monitor every 1.8 seconds. I can write my own code to send messages to the serial monitor and it works as expected. I'm not sure if the Adafruit Huzzah supports interrupts, or if I need a library to correctly access the GPIO pins? I will attempt to find out from Adafruit . I've looked at a few Arduino IDE sketches for the Huzzah on GitHub, but there is not a lot to choose from. P.S. I like your channel and your obvious expertise. I've "borrowed" your code numerous times for projects, e.g. nRF24L01 radio code for robotics projects.

The Hazzah has an ESP8266 on it which I believe supports interrupts so the Hazzah should support interrupts. Glad you found the content on the channel useful and I put the code out there for others to use.

I can't answer for all Anemometer, but the 3rd wire on mine is not connected to anything. My guess is they are using some standard connector that has 3 wires but they only use 2.

Thanks