RFduino Forum

RFduino => Kits & Shields => Topic started by: RFadmin on October 19, 2013, 08:36:45 PM

Title: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: RFadmin on October 19, 2013, 08:36:45 PM
RFD22121 - RFduino USB Shield - Schematics and PCB
Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: Ham on October 20, 2013, 08:48:06 AM
Cool thanks :)
Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: TomWS on August 10, 2014, 04:54:39 AM
In the "Gee, it would be useful" category, I'd like to have a solder pad near the U2 corner of the USB shield to be able to tap off a 5 Volt signal. 

This would be useful when plugged into Experimenter's boards to provide 5 volts for prototype circuitry.  Right now I can tap off the input leg to U2, but having a purposeful pad for this would be a bit more convenient and wouldn't require re-heating U2.

Tom
Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: wespwilson on December 29, 2014, 08:45:26 AM
What are the Z1 and Z2 components in the schematic?  I'm trying to work this circuit into a project I'm working on so I can program RFduino on the board and those are the only two components I'm missing from the circuit.  Any help is greatly appreciated.  Thanks!
Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: pj@telesense.com on July 01, 2016, 03:44:35 PM
Does anyone know the exact land pattern of the 0.1'' pitch pins for these DIP packages?  All I've found in datasheets/user manuals are total package dimensions and eagle board files for smd devices (simblee).
Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: tolson on July 01, 2016, 05:37:40 PM
Does anyone know the exact land pattern of the 0.1'' pitch pins for these DIP packages?  All I've found in datasheets/user manuals are total package dimensions and eagle board files for smd devices (simblee).

I take it you don't have one sitting in front of you?

Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: pj@telesense.com on July 05, 2016, 10:19:20 AM
That is correct.  I'm laying out a circuit board to house one of these things. 
Title: Re: RFD22121 - RFduino USB Shield - Schematics and PCB
Post by: tolson on July 05, 2016, 01:47:12 PM
From the outline drawings you know the X and Y dimensions. From knowing the pin spacing is 0.1 inch you can measure and determine the row spacing.  Someone might have a fritzing library so you can probably determine the pin and row spacing from he symbol that goes into a breadboard. You might also look for example videos that show the modules in a breadboard from which you can count the holes to determine the row spacing.