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Re: Communication Problem:: RS-485 (MASTER) and RS-485(SLAVE
the slave obtains its gnd and power off the Master PCB board. thus the power and the ground are the same for both MASTER and Slave.
twisted shield pair cable will be used for A and B lines.
by the way, the track length for line A...
Re: Communication Problem:: RS-485 (MASTER) and RS-485(SLAVE
Thank you guys for your help.
By the way, I think I forgot to mention the following parameters of my system:
1. Baud rate = 38,400 bits/sec
2. Max. Number of allowable slaves is 4.
3. Connection of about 1000 meter cable (maybe...
Hi,
I am working on a project of interfacing PIC uP (MASTER) to Multiple PIC uP (SLAVES) through the use of half-duplex RS-485 chips.
I am using daisy chain topology for my network.
Hardware configurations:
-----------------------------
all of the RS-485 chips are connected as follow to the...
Re: Opto coupler
... Most of the time opto couplers are used to protect communication lines.
for example, you can use opto couplers to protect your Tx, and Rx lines between your RS232 and PC, from power surge that would be harmful to your PC and RS232 chip.
you must keep in mind that if you...
1. export DXF file format
2. Use one of the following softwares:
A. AutoCad
B. Solid Works
C. 3DsMAX
In general all 3d softwares out there use a DXF File format.
the question is which 3D software is easy and fast to use
Re: Gerber Viewer
I can not find a very good and free Gerber viewer online.
can any one recommend a free Gerber viewer.
I look forward to try Minumula's gerber.
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