hi Fsbus matesi finished my fsbus board last week and i am working about it in order to activate its all functions.but unfortunately it is not clear way. at my first attemt i flashed all . COM III ,KEY and LED worked but D

Gurkan,Remember your problem with the 4051,if you got it from the same shop,I would try replacing the 7805 + others.Also,try connecting the dispay board into adifferant slot in the COMIIIRegardsVolkan

Just my two cents worth on FSBus.I have made FSCom, Led, AD, and Key. When I first made them, I had some fiddling to get them working, but all the problems were my mistake, being short circuits in the traces, or things put in the wrong way round, but the initial problem that caused me lots of grief was wiring the serial plug in Null moden layout. Bad move! Now everything works reliably month after month.I think it is great, and I am looking forward to the next version due out soon.David

i solved my too many problems about FsBus especially voltage matter.i have got 13.70V MCTRL 5.01 12.led 5.01 13.legand i have flashed my LED card.but second attempt for KEY card failed. when i cheched legs of MCTRL i found out the reason.When FsBus connnects to COM port voltage on 12.leg drops 0.02V,without connecting it is ok 5.01V.what is the reason this changing in 5 minutes ?G