The gear potentiometers are popularly used in audio systems. They can be easily connected to the analog input of a microcontroller like an Arduino or a Raspberry Pi. Below are the quick technical ...

Digital potentiometers are integrated circuits with the initial position of the wiper at the midscale. However, some variants have an on-board (non-volatile) memory that remembers the last wiper ...

It’s a simple enough set-up in which a voltage controlled current source feeds the pot while an Arduino with a motor controller turns it through a stepper motor, and takes a voltage reading from ...

Call it synchronicity, or manually setting a 16-bit number in an Arduino, or how to turn an OLED into a rotary dial ...

Sometimes, a hack isn’t really about the technology but about the logistics. If we asked you to light up an LED using an Arduino, there’s a good chance you’d know exactly how to d… ...