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This week's job i chose to design and built wired network with brigde,and two nodes.I used Attiny 13 />microcontroller i connected the three devices (the brigde, nodes1 and 2) in parralel and i got amber flashing which lasted for 2 minutes then red steady as seen on the programmer.Uptodate i don't know what happened

I designed bridge schematic diagram as usual with Eagle.

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Download node1 schemat

Download node board

Download node2 board

Download node2 schemat

Download bridge board

I generated the board of the brigde as shown below,components i used are; R1-10K,PCB, R2-1K,led, attiny 13 microcontroler capacitors 20 and 1 micro farads respectively,4 and 6 pin connectors.

I designed the schematic of the node1 as shown below.

I then genereted the board, components i used is available in the shematic diagram .

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Parts list of node 1 above ;R1-10K,PCB, R2-1K,led, attiny 13 microcontroler capacitors 20 and 1 micro farads respectively,4 and 6 pin connectors.

I designed the schematic of node2 as shown below.

Parts list of node 2 below ;R1-10K,PCB,R5 10K, R2-1K,led, attiny 13 microcontroler capacitors 20 and 1 micro farads respectively,4 and 6 pin connectors.

I then generated the board,components i used is available in the shematic diagram .

I milled the boards with modella,i did the soldering of the components as shown in the booard diagrams of each circuit, then i connected the three devices in parallel, the bridge,node1,and node2 respectively as per below diagram.

I had the code for programming but as explained above my circuit were ok but after sometime either of the three circuit misbehaved so i didn't managed the programmming

Download node1 source

Download node2 source