This module allows you to switch eight individual outputs using MIDI note messages. It is similar to my MIDI-Switcher module and shares the same firmware and configuration features.
However, instead of the power transistors of the MIDI Switcher, this module uses relays. An eight-relay module is included.
Each relay functions as an isolated SPDT (2-way) switch and can be used to replace a physical switch with a MIDI control (for example to replace a guitar amp channel switch pedal). The relays can also be used for power switching with high current capacity and can be used to drive large solenoids, motors, actuators and so on. Relays can be paired up for multipole switching, increased current capacity, or even making reversing switches for motors.
Each relay is switched when the device receives a corresponding MIDI "trigger note" message from a sequencer / controller / DAW etc.
Relay-Switcher is highly configurable. For each of its 8 switching ports you can set:
Note that Relay-Switcher does not support the duty cycle modulation of the transistor based MIDI-Switcher (This page can help you decide whether relays or transistors are better for your application)
A simple Java application can be downloaded to help configure the board over MIDI and makes it easy to save (as text commands) a specific configuration set so you can send it back to the board at a later time.
There is a standard 5-pin DIN socket for receiving MIDI data. This is optically isolated in accordance with the MIDI specifications, ensuring your computer / sequencer / controller keyboard is electrically isolated from the board when controlling it.
You will need a 5VDC supply of 500mA capacity to run the Relay-Switcher
The Relay-Switcher controller module comes as a kit and requires assembly by soldering.
The relay board itself is a standard part that I am reselling and is provided fully assembled and tested. The kit also includes a laser cut acrylic base plate to support the connected boards, together with all necessary mounting hardware.
Approx size 155mm x 60mm x 30mm (sockets and feet attached). The approximate weight is 180g
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I am an electronics hobbyist from Brighton UK. I love playing with microcontrollers and doing interesting things with MIDI and analog noiseboxes. Lots of new ideas in the pipeline so watch this space...
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