If you have already posted without using code tags, open your message and select “modify” from the pull down menu labelled, “More”, at the lower right corner of the message. The “Code: ” feature allows someone to select the entire sketch so it can be easily copied and pasted into the IDE for testing. Also, if you don’t do it, some of the character sequences in the code can be misinterpred by the forum code as italics or funny emoticons. It makes it easier to read, and can be copied with a single mouse click. The code tags make the code look like this In this case, the problem is that you have posted code without using code tags. Making an effort to do this will greatly increase the number and quality of helpful responses that you get. The forum link above has guidelines for posting in a standard way that makes it easiest for people to provide you with useful answers. Useful links - check here for reference posts / tutorials You may also find useful information that would answer your question here: Read this before posting a programming question …

General Guidance and How to use the Forum and Please read these two posts in the programming questions forum: Lcd.print(temp) // Printing temperature on LCD #include // Library for I2C communication I have been reading and can’t seem to get my head around how to implement and what code to add/change.Īny help would be appreciated. I have read others having the same problem and it’s stated I have to change the PWM frequency to 25khz to get the fan to stop. When I start everything up, the fan starts up, The speed increments seem to work ok except the fan runs slow when it should be off, display shows off I have a 4 wire 12v pwm fan, Arduino nano, appropriate power supplies, DHT11, 16x2lcd i2cĮverything is connected and works well except the fan, the pwm wire of the fan is connected to pin 9, grounds are all connected.

Temperature controlled fan arduino