Robal

the MKI x ES LABOR debugging add-on

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Robal (Polish for “bug”) is an add-on for the Labor which makes circuit debugging a breeze. Four bi-colour LEDs are an instant way to check on the voltage in an arbitrary part of the circuit. For more in-depth analysis you can connect your scope to soldered-in connection points without the risk of messing up the breadboard connections.

The included 16pin and 10pin IDC power connectors let you work with fully assembled eurorack modules even if you don’t have free HP in a nearby case!

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4 universal test points

each:
  • can be arbitrarily patched into the breadboard
  • has its own two-colour LED CV indicator
  • has a color-coded oscilloscope probe connection point
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eurorack module power supply headers

In the 16pin version for compatibility and 10pin version for convenience.

Tremendously helps working with external modules and finalizing your own designs.

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    LED current buffering circuits

    Robal uses OpAmp ICs to make sure the current drawn by the indicator LEDs doesn’t impact the voltage measured on the probe connection points
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      audio scope probe connection points

      Two additional test points make it easy to inspect the voltage on the circuits final output - the tip and the ring as well

        Buy

        Variants explained

        • PCB + SMD
        • Kit
        • Ready-To-Use

        The PCB with all surface-mount components already installed. You’ll have to source the through-hole components yourself.

        The PCB with all surface-mount components already installed, the through-hole components are provided separately and you’ll need to solder them on yourself.

        This is usually the best “bang-for-buck” option.

        All components are soldered-in, the PCB has been cleaned and its key parts have been covered with a conformal coating.

        This variant is usually the most expensive one and might have some lead time.

        Specs

        propertyvalue
        dimensions (W x D x H)67.5mm x 40x.5mm x 20mm
        weight15 - 17g
        inputs- two sets of 1x8 pin headers connecting to Labor
        - four sets of 2x2 dupont pin sockets for breadboard jumper cables
        outputs- 6 oscilloscope probe connection points
        - two 2x1 ground pin headers
        UI- 4x two-colour LEDs
        - red for negative CV, green for positive
        LED indicator sentitivity- green LED >= ~4.1V
        - red LED <= -3.2V

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