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Single wire multi UART communication
glitch wrote:Unless you disable the receiver, each node will also be receiving it's own transmission... guaranteed! If your code is not seeing this "echo" then you must be...
Tuesday, 10 March 2009 - 03:22
Single wire multi UART communication
cmhicks wrote:dabinn wrote:I try this circuit and it works perfectly. But why the data which Main uC just send wouldn't receive by itself through the RX line?? Each uC does indeed...
Monday, 9 March 2009 - 20:18
Single wire multi UART communication
glitch wrote:wileur wrote:Thanks, but putting a pullup/down on the line doesn't work with the UARTs. When nothing is going all pins need to be tristated, leaving room for any uC...
Monday, 9 March 2009 - 13:29
1-wire interfacing to a IR thermometer
And here says adding a NC7WZ07 on TX line, if TXD pins are not open drain. http://www.maxim-ic.com/appnotes.cfm/an_pk/214
Saturday, 28 February 2009 - 19:30
1-wire interfacing to a IR thermometer
Or this may work: https://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=69916&postdays=0&postorder=asc Connect TX/RX line together, and use a 4.7k...
Saturday, 28 February 2009 - 19:22
1-wire interfacing to a IR thermometer
I am tring on this: AVR274: Single-wire Software UART http://www.atmel.com/dyn/resources/prod_documents/AVR274.pdf
Saturday, 28 February 2009 - 19:21