Categories

• Announcements
  

  Announcements regarding our community

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  J

  @zahidshar
  We are currently out of Cheapstat stock and at this time we don't have plans to restock in the forseeable future. However, if you want to make one yourself, we do still have the bare Cheapstat PCB for sale here. We are working on updating the Cheapstat documentation to include the bill of materials for this board, so that should be on the site very soon. Let me know if you have any questions about this.

  Going forward we will be focusing most of our efforts on the Rodeostat open source potentiostat. If you are interested in using the Rodeostat or have any questions, please let us know and we will be happy to help !

• Colorimeter
  

  Forum for discussing the IO Rodeo colorimeter

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  Topics
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  Posts

  L

  Oh that's great! I tried the single executable file and it worked. I guess I had trouble finding that earlier. Thanks so much Will!

• Rodeostat
  

  Forum for discussing the new open source potentiostat shield

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  108
  Posts

  M

  Hello!
  I have just received my Rodeostat. At work I am using a PC with 32 bit Windows. I can only find serialport-bridge NSIS Installer for 64 bit Windows so I cannot install serialport-bridge software. Is there a 32 bit version of serialport-bridge NSIS Installer?

• Cheapstat Potentiostat
  

  Forum for discussing open source potentiostats

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  Posts

  P

  Hi...i am a new user here. As per my knowledge potentiostats are the foundation of modern electrochemical research, they have seen relatively little application in resource poor settings, such as undergraduate laboratory courses and the developing world. One reason for the low penetration of potentiostats is their cost, as even the least expensive commercially available laboratory potentiostats sell for more than one thousand dollars.

  pcb printing and assembly

• Electrophoresis and Gel Imaging
  

  A forum for discussing our open source gel electrophoresis, transilluminators and gel imaging equipment

  22
  Topics
  52
  Posts

  B

  Great. Thank you so much. I have the large LED transilluminator. What would be the max reasonable current to make sure not to go above this amount? In general, I'm trying to get illuminations of perhaps 10% of what the DC adaptor supplied is creating. However, I want to make sure I don't start at a current too high.
  Many thanks.

• Panels Display System
  

  Forum for questions about the Panels Display System

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  Topics
  9
  Posts

  A

  Oh gosh, you are right! I’m sorry for the delay but I was very busy. I have never thought to rotate the LED matrix because I thought I was right with that (otherwise, if not, no LED would have turned on). Thanks very much! I also take advantage of you for another issue. I have tried to load the arena configuration on the SD card but PControl doesn’t let me do that. Have you any suggestion? It seems that the controller doesn’t communicate to the SD nevertheless at the beginning (when the controller is switch on) PControl finds and initializes the SD card. I’m sorry because of all these questions!

• Online store and Shipping
  

  A place to ask questions about our online store, inventory and shipping

  8
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  23
  Posts

  M

  @Will-Dickson Thank you!

• General Discussion
  

  A place to talk about whatever you want

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  Topics
  4
  Posts

  J

  Hi Greg,
  Thank you for your kind words about our work and for reaching out ! We will definitely take a look at the openhardware.science website, thanks. Your work sounds very cool, and we would love to chat further. We sent you a message on here so look for that and hopefully we can connect and chat soon !
  Best,
  Jo

• Shields & Breakout Boards
  

  Forum for discussing the IO Rodeo colorimeter

  3
  Topics
  9
  Posts

  W

  @fscker

  It looks like the RTL8195 has 3.3V IO. The potentiostat shield powers the MCP4261 with 5V. So you are connecting a 3.3V device to a 5V device - I think. I'm not sure if the IO pins on the RTL8195 are 5V tolerant, but you might want to check. Could be related to you issue.

  Note, the MCP4261's could be powered off of 3.3V. They have a pretty broad allowed input range 2.7 - 5.5V. This would require cutting one trace - the one going to the 5.5V on the shield - and rerouting this trace to to the 3.3V pin.

  The spec sheet for the MCP4261 can be found here. http://ww1.microchip.com/downloads/en/DeviceDoc/22059b.pdf