Communication between Picaxes

[100317]

Just a short Question: Is it possible to communicate with another Picaxe over the Programming socket, without removing the 10K and 22K resistors?

 

[MPep]

The later PICAXEs can info and send from the programming pins.

 

[100317]

Excuse for the not very exact question.
My question was whether the 2 resistors must be removed, or not.
I fear that the signal is too weak.

 

[hippy]

The 22K is simply a current limiting resistor and the 10K is a pull-down load for whatever is providng the serial signal so it should work; the AXE027 uses 0V/5V signalling and works across the entire PICAXE range with the resistors in place.

 

[100317]

Many thanks, Hippy, it saves me an additional plug.

 

[hippy]

As always, the best course is to prototype the configuration, resolve any issues there may be before committing to a board design, PCB or strip-board, as things will be much easier to fix when on breadboard etc.

You can test by adding a 3.5mm jack plug to the sending PICAXE and plug that into the download socket of the other.

 

[Minifig666]

I fear that the signal is too weak.

You have no need to worry about that, these things have super high impedance. I've had communications down wet string, and people!