Board design

Node design

In communication networks, a node (Latin nodus, 'knot') is either a redistribution point (e.g. data communications equipment), or a communication endpoint (e.g. data terminal equipment). The definition of a node depends on the network and protocol layer referred to.,but in our case node is endpoint

In this board I requird rx,tx,vcc,gnd pin in this board.for this I refer the datasheet in that I read port b description then i decide that I connect rx pin to PB3 and tx to PB4 design.this time the datasheet help me to choose rx tx pin in the board.after that I design the board in eagle software.

first I open the eagle in that select new project then set the grid .I add the componant from fab library.The rx pin of connector conect with PB3 and then i connect the tx pin to the PB4 this is node board so there is no need of ftdi connection it I having only programming pin and rx tx pin.I used the neils board and code I I just modified that board and code

after all connection I check the ERC then is shows that zero error.

then I make switch to board then my all componant come in this window

I keep as it is the orientation of the board as per the neils board and according with that I adjust the wire

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for milling we have to convert this file to the monochrome

bridge design

A network bridge is a computer networking device that creates a single aggregate network from multiple communication networks or network segments. This function is called network bridging. A network bridge is a computer networking device that creates a single aggregate network from multiple communication networks or network segments.

in our system the bridge is connected with wired connection

In this bridge is communicate with computer so there is extra pin header rather than node is ftdi pin header other full system is same as it is

I edit my node file and i insert the extra componant i.e 1*6 pin header in this board

then connect its vcc gnd rx and tx to our same pin

after all connection i check the ERC then is shows that zero error.

then I make switch to board then my all componant come in this window

learning outcomes

in this board i understand that how differntiate the board actualy there is no mesure difference between all the fab academy electronics board only the differance in pin connection

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