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Why!
Well, the uP Controlled Option relay card was originally designed for the IMK3 Microphone switching, since then many Hams ask for the relay board itself to make their own Microphone switch and we adjusted the code to the SL1 project and other projects we are not really ready to talk about yet!
So we decided to offer the assembled board to our base, in two variants, the push and activate both relays at the same time or push to engage on relay at a time.
What was our original need...
Real simple, the original need was to switch all the required lines from an ICOM microphone to two radios, a single relay could not do it so we needed a simple uP controlled PCB that would do it for us, the catch Òn a single temporary push of a button! and confirm with LED feedback on the IMK3.
How does it work?
Based on a simple Tiny85 uP Controller we simply take the incoming switch info via J1 and send separate relay controls to the two SMD relay and output LED info again via J1 back to the IMK3 (or your control PCB).
In the original design (as it is now) power comes from the ICOM 8VDC of the radio via the microphone jacks (J3), since there are two radios both 8vdc are tapped and via a simple diode matrix sent to a 5VDC regulator to power the PCB.
The output via J2 is sent to the microphone connector (J2B) and the IMK3 via J2A (optional).
What did I do in the SL1 project different from the IMK3 version?
Well in the SL1 project the need was different, instead of engaging both relays and one LED with a touch of the switch and reversing the operation with the touch of the other switch, I program the Tiny85 to simply engage RL1 and LED1 with a touch of S1 and RL2 and LED2 with a touch of S2, when one is engaging the other is reset.
This simple mod covered my needs in the SL1 project.
What else can I do with it?
The board being uP Controlled I can easily add a variation to the code to have the relay togle on and off using the switch, this way you could toggle RL1(LED1) and RL2(LED2 separately as needed.
Just let me know what variation you want for your project.
What can I use this for?
WOW! so many things that the beauty of this small 75mm X 30mm (3" X 1") PCB, from microphone switch (not just for ICOM, but also Yaesu, Kenwood, etc...)
to antenna tuner controller like my SL1 for the SGC Family (See WWW.VE2DX.COM/PROJECTS ).
You could replace rotor controllers with it, switch remote antenna relays, switch polarisation on your satellite antenna, and so many other things, it's crazy...
The rest is AGAIN history!
Yes, it is the boards are Ready. They will be offered in 3 versions;
1- The V1, Original version PCB assembled and tested engaging both relays with 1 switch and disengaging with the other 60$us plus S&H.
2- The V2, PCB assembled and tested engaging one relay at a time and resetting the other when it does (Available Soon)
3- or the V3 PCB assembled and tested engaging both relays seperatly (Available Soon)
Hope to hear from you soon.
73
Richard VE2DX@HOTMAIL.COM
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