RF serial and NKM2401

[manie]

Hope everyone has a wonderful year...... two questions...

1. Using two chips and RF serial with N2400_8 baud on one board. Do I still fit 1N4148 diodes but with the cathode pointing to the Picaxe and a 10K pull down resistor ??

2. Can the NKM2401 handle idle low (N2400) input/output ?

example:

                       <---1N4148----- NKM2401-------Rf receiver
                       !
           Picaxe 20x2 <---1N4148-------Picaxe 20x2
           serin       !                Serout
                       !
                      10K
                       !
                      Gnd

Edit
The serout is under the 2nd Picaxe, the text moves...
I am using Dorji 887Rx and 888Tx units in a multi to multi system.

 

[hippy]

I took the liberty of adding [code][/code] tags and spaces to your diagram. Let us know if the circuit is not as you intended it.

The NKM2401 uses idle-low, active-high, Nxxxx protocol so you need diode mixing and a pull-down as shown.

 

[manie]

Thanks Hippy
It is exactly as I wanted. The chicken coop controller is growing still, now using separate units to do the work.
Thanks for the input.