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Operating Up To 8 Radio Controlled Relays ?
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 Posted: Tue Feb 23rd, 2021 08:07 am
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Chris Morris
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Hi

Not sure if anyone uses this type of 'Micron' Tx72v2 transmitter ?
But I am after a way to switch about 8 relays via the unit.

I don't mind if it's split/spread over 2 or 3 channels,
as it has 12 & I won't need this many.


Now it works on a 'Spectrum' base,
& wasn't sure if I could use something like an 'Orange' 9-way receiver,
to get at least 5 switches ?

At worst I could use latching relays,
if I can only get a pulse from the transmitter.


Was just trying to get the cost down,
as the R60 receivers are not cheap in the UK.

Or any other suggestions.


Thanks.







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Chris, from Norfolk UK. "Using On30 Scale"
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 Posted: Sun Feb 28th, 2021 08:06 am
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Toeffelholm
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Hi Chris, 

No that doesn't work.


A standard RC receiver, only provides servo signals,
that can control servos and speed controller.

To perform voltage on/off switching,
you would need additional switching devices,
that translate the servo signal into voltage on/off.


Furthermore you may not mix up the basic meaning of "channels" in the RC world,
and the 12 "positions" of your control knob for switching on your Micron transmitter.

This knob only uses 1 channel,
and simply divides the transmitter signal for 1 channel, into 12 signal-segments.


Juergen




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modelling in 1:22.5 on 32mm and 16.5mm track
Actual project: 7/8" scale on 45 mm track
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 Posted: Sun Feb 28th, 2021 09:05 am
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Chris Morris
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Hi

It turns out it can be done, using the RX60 receivers & fitting FET buffers,
to convert outputs for low power switching, or switching a relay coil.

Will have to buy the more expensive RX60 receivers.  


Thanks




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Chris, from Norfolk UK. "Using On30 Scale"
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 Posted: Sun Feb 28th, 2021 11:49 am
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Rod Hutchinson
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I have used FETs which allow P outputs to switch high current devices such as coils & motors.







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Rod Hutchinson
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 Posted: Sun Feb 28th, 2021 12:13 pm
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Chris Morris
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Many thanks Rod.

This helps a lot with a drawing.  And only £00.50 each.
Like this.


Have ordered from :
Would I be able to use this on terminal 5 as well, on the R60 ?
Or just 3 & 4 ??




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Chris, from Norfolk UK. "Using On30 Scale"
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 Posted: Sun Feb 28th, 2021 09:19 pm
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Rod Hutchinson
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You can use this FET on any P output. 

If you use RX65 & 66 they are made with three F outputs,
which won't require the MOSFET.

There are maybe smaller SMD MOSFETs with the characteristics of the IRF3706,
but electronic experts will have to tell us what that is.




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Rod Hutchinson
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 Posted: Mon Mar 1st, 2021 06:47 am
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Chris Morris
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Hi


I was only able to get the RX60,

as there seems to be a wait on ones above this at the moment,

& that date keeps getting moved forward.


Thanks for the help.  :2t:




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