The concept of automation is getting popularity among people these days and many of them control their lighting, climate, etc ...
An Arduino nano and relay module with 4 relays (see picture above) was used to simulate and replace the guitar 3-step switch.
The 16-channel 12-bit PWM/Servo Driver, PCA9685, is an ideal module for precise control of multiple PWM outputs that are commonly ...
It can be powered by a USB cable or by an external 9 volt battery, though it accepts voltages between 7 and 20 volts. It is also ...