Motorpot remote controlMotor pots such as e.g. The ALPS RK27112MC can be remotely controlled with this module. Nearly all audio handset switches for Philips, Grundig, Marantz (RC5) or even a universal remote control can be used to control the function.
Motorpot remote control 38,-
· Volume +/-
· 1-4 Source
· Source +/-
· Stand By
After connecting the supplied infrared receiver, a 5V supply voltage is required. The motor of the motorpot is connected to PIN 4 and 6. Switching on reduces the volume for a moment.
The left port can control relays for up to 4 sources. The mute button on a remote control switches off all source relays, and when pressed again, re-activates the last known relay.
A relay for e.g. "Stand By" can be controlled with pin 15. With push buttons to ground / GND can also be controlled manually without remote control.
· Pin 3/4: Motorpot right / left-run
· Pin 13/14: Source selection up / down
With "reverse logic", the switching signal for the relays can be inverted during operation. Depending on the requirements in a pre-amplifier or integrated amplifier or relay cards, the module can provide the necessary signal without any changes to the existing circuit. Pin 16 is to connect to 5 volt for inverting.
Relays are always controlled via a shield and can not be connected directly to a microcontroller because of their current consumption. Such a shield consists of a transistor or opto-controller, which switches the coil voltage for the relay. Depending on the wiring, this shild requires a 5V "signal high" or a 0V (GND) "signal low" from the microcontroller.
Wiring relay shield