For this unit, the PID controller board needs to output a 12-V PWM signal to control motor speed, and use an analog-to-digital converter (ADC) channel to sense the position of the actuator.

Few people get the chance to watch an oral argument at the Supreme Court. Art Lien is one of them. As an artist who has been sketching the court for more than four decades, Lien has attended – and ...

Robin Thede, the creator and showrunner of the sketch comedy series on HBO, talks about how they created the sketches in Season 4 and the return of several zany characters.