Not a smart way to connect Easy Radio modules!
ER900TRS: An extremely smart little module.
You just give it some volts, and a serial string, and it transmits it over air to another ER900TRS. This one can be pretty-pretty far away if you have an antennae - and it willoutput the serial string.
It cannot be more easy to communicate ASCII from one microcontroller to another!
But they are quite expansive, and so I thought instead of usin a new one for each project, I would make some sort of hook-up-system with old IDE-PC-cables..
Idea was that I should just solder the cable, and then insert the module when needed here and there..
This is not a good idea.
Darn thing does not connect very well that way, and so I spend hours and hours bugtracking on the dumb strings that did not come in right :D
Liiiitle looose connections, all the time.
This is how to do it:
I found out that one can just de-solder the pins rom the module, and add some wire. Stick some ffemale headers to the wire, and you are go to insert radio-transmission in 2 minutes on any standard project board :)
@ Sat, 2011-02-12 07:34
hi fristsl
i have seen your little 8R robot and i want to make it but their was only remote problem i want to just see inside the remote which you made for little8R thats all
@ Fri, 2011-02-18 13:08
But which part are you
But which part are you interested in?
This is old work, there are better options today :)
@ Sun, 2009-10-18 22:48
RSSI not so good???
@ Sat, 2009-10-24 13:22
No, I do not think so, but I
@ Fri, 2009-10-09 16:25
can you show how you added the buttons.
@ Sun, 2009-10-18 22:10
I am sorry, but I don't
@ Mon, 2009-07-13 13:05
can you show.
@ Mon, 2009-07-13 15:28
You can look at the
You can look at the pictures, as I will not have time to make new ones.
From then it is quite simple (I do not have manuals either, so I can only give you from my memory):
V to V
G to G
One output directly from the Picaxe to the serial / signal IN on the ER (Not through a darlington, straight from the picaxe)
One from EA signal out to any digital picaxe in
THis is all you need for a basic send / recieve setup.
Have lots of patience, and possibly experiemtn with LCD's, to learn about serial in / out.
Always, if just starting, start out with having 2 picaxes talk to each other, through wires connected. Make that work, and then insert the EA instead of wires..
@ Tue, 2008-09-02 22:59
i found this way for
i found this way for connecting stuff and i believe it is suitable for others components, sensors..... :)
this example shows a handmade connector for SRF505
Sensor Pins -> Female Headers -> Wires -> Male Headers -> Microcontroller
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