did you try swapping the wires to 4 & 5 on the midi jack?
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No. Did you build one using the PCB of Look Mum no computer?
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I did not build the PCB. I am attempting a stripboard and Kosmo panel version.
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This project is new for me and I’m still learning.
I built a small prototype using the example of “Notes and Volts” to test the code and the multiplexer. Everything look good and I have MIDI output signal. But using the PCB, I’m stuck. That why I was asking if someone could upload an image of the back panel.
Can you post a picture of your back panel?
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Hi @unexpectedbowtie,
Did you manage to build your Cynthcart controller? I wanted to know if everything worked out well for you.
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Hey! Sorry for the late reply. I haven’t been on here much lately and missed your notification.
I haven’t finished mine yet. It’s still sitting waiting. My enthusiasm for DIY projects outside of video stuff fell apart after I couldn’t get one of the KOSMO modules to work, so I’ve set it all aside for a bit and will come back around to it. I’ve got the chips somewhere, but who knows if they will work or not. I might try socket them just incase, but they are big so need to figure out what size socket I need.
Did you get yours working?
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Hi @unexpectedbowtie,
Unfortunately no.
I tried to check if I can get midi output using software monitoring MIDI-OX and I have no signal. All the components seems to be at the right place. I also tried with different component versions. The arduino code seems to be correct too.
Now I’m wondering if there is something wrong with the PCB. That’s why I was looking for someone who already built it and can confirm me if the PCB is ok. I’m not expert in electronic but I like this DIY project. I also put this project on hold for few weeks but I plan to get back soon.
I will let you know if it works. 
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