[basanlab]

Hello Harrison,
I am happy to let you know that modified PCB are coming form PCBway, new peristalttic pumps also on the way. We are really excited about this, and looking forward to do many experiments.
Avik

[basanlab]

Dear Harrison,
Wonderful to hear from you. Yes I directly connected the power output of the coms board to my peristaltic pumps and it worked absolutely fine. Yes, as it gets 6 volts from the pump coms board, it runs a bit slower, but that is not a big problem with my experiments. These pumps allow rapid exchange of peristaltic tubing, which we absolutely needed.
I have requested PCBway to do the assembly for me, as I am not an expert.
I have also requested PCBway to edit the pump coms board boundary to rectangle, without any cuts (where on board peristaltic pumps used to go)
As a suggestion for future development, I think having the basic design of pump coms board , which compact rectangular margin will be helpful, and you may consider having it on ChiBIO website. As part of community, I can also share PCBway order number for future references, if anyone wants to use our strategy.
I will keep you updated.
With best regards,
Avik

[basanlab]

Hello Harrison,
Thanks a lot for explaining this. Will it be ok, if I use long cable to connect the control computer with reactors and then short cable to connect the pumps, as I am doing presently(mentioned in configuration 2)? Please let me know your suggestion on this. Or I should totally avoid long cable, for more stability.
I will be most grateful to receive your suggestions.
With best regards,
Avik

[basanlab]

Hello Harrison,
Thanks a lot for your reply and suggestion. I have flashed both our chi-bio set up with Version 2 of the software, and pumps are working stable. But while troubleshooting this problem, I have noticed something very interesting. Chibio came with small micro USB cables, to connect the control computer with the reactor and reactor with pump.
For our convenience with too many reactors, we connected the connected the control computer with each reactor with 3 meter micro USB cable, and another 3 meter micro USB cable that connects each reactor with its cognate pump.
I realized these two long cables, causing the pump failure. I have tested a few configurations, as mentioned below.
(1)Control computer–>short blue cable–>reactor–>short blue cable–>pump : perfectly works
(2)Control computer–>LONG 3M cable–>reactor–>short blue cable–>pump : perfectly works
(3)Control computer–>LONG 3M cable–>reactor–>LONG 3M cable–>pump : Pump communication problem (even after software update).
Presently I am running the set up as mentioned in configuration(2). I will be most grateful, to receive your valuable comments on this.
Best regards,
Avik

[basanlab]

Hello ,
The problem is solved. I needed to update the Beaglebone, and it installed all packages.
Thanks a lot,
Basan Lab

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