Making an Arduino shield can be simpler than you think. This time I designed one to program Attiny and Atmega ...

8 old programming languages developers won’t quit Newer languages might soak up all the glory, but these die-hard languages have their place. Here are eight languages developers still use daily, and ...

Set fan speed by using a PWM signal Set fan speed via I²C bus Read the current fan RPM via I²C bus Auto adjust PWM range by testing the connected fan at startup (can be re-triggered by I²C bus) ...

freeCodeCamp.org is a friendly community where you can learn to code for free. It is run by a donor-supported 501(c)(3) charity to help millions of busy adults transition into tech. Our community has ...

On March 31, 2026, the Federal Court will hold a hearing to decide whether it will approve a proposed settlement agreement in the Sweet Class Action. Learn more about the proposed settlement and ...