What is the purpouse for the Coax plug on the buddy board?
 
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What is the purpouse for the Coax plug on the buddy board?  

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Cashew92ftw
(@cashew92ftw)
Trusted Member
What is the purpouse for the Coax plug on the buddy board?

When i decied to install my esp wifi chip, I noticed there was a small plug on the other side of the usb plug. As per the BOM it is J11 and identified as a UFL Coaxial. Which since it dosent seem like anyone has brought this up, i'm now very curious what this plug does. Could it be used to make use of say Bluetooth, or in theory have wifi integrated instead of using the esp chip?

 

Orange Juice Please

Posted : 27/09/2022 2:27 am
domble
(@domble)
New Member
RE: What is the purpouse for the Coax plug on the buddy board?

From the github schematics... connected to a ST25DV64K - which is "Dynamic NFC/RFID tag IC with 64-Kbit EEPROM".  Think that means it could be read by an RFID reader, like a mobile phone.  Presumably would need an antenna plugged in first.  But... what for!   Not bluetooth or wifi in itself, but perhaps could be used to authenticate one of those?

dom.

 

Posted : 27/09/2022 12:03 pm
domble
(@domble)
New Member
RE: What is the purpouse for the Coax plug on the buddy board?

Schematic page is EEPROM - so I guess the main function is as the board's EEPROM storage, and the RFID is a 'bonus'... I wonder if it's a way for Prusa set the board serial number and other settings in the factory?

Posted : 27/09/2022 2:53 pm
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