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Old Apr 19, 2012, 08:22 AM
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Great work ,Simon ,my suggestion to you is that you work with Frskyrc .Give them the protocol and ask them to mass produce the rx .You charge 1 usd for per sold unit .I do believe you can earn quite a lot of money from this project .
Again ,congratulations for what u have done ,man
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Old Apr 19, 2012, 08:31 AM
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YES, FrSky receivers that work with Aurora 9 and also have PPM out would be a winner. It also wouldn't hurt to still retain all the telemetry functionality!
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Old Apr 19, 2012, 08:47 AM
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If you work with FrSky for the telemetry rx, I would prefer that they come out with similar SPC and data ports so that we can use the standard A9 accessories. At least until Hitec changes the code when something new comes out and we have to upgrade our firmware.

chewy+
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Old Apr 19, 2012, 12:38 PM
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I would love to have a low cost minima size rx with SPC for battery telemetry. Data port I can do without.
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Old Apr 19, 2012, 06:45 PM
Radio? Screwdriver!
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fantastic work and the 2 gramm weight really is a selling point - i currently use minima's and they are great but this is even lighter with seemingly ample range

i just don't have any servos or esc with molex micro plugs on ....

fantastic work
Hi Big bird,

The units I'm selling, I'm shipping them with a pack of 5 molex picoblade connectors and matching crimp pieces - so those that don't have any can make their own. One aircraft I crimped servo extension cables so I could use standard servo connectors and another I cut off the standard connectors and replaced them. So its possible to do either.

The crimp pieces I found were a bit too small for my ratchet crimpers, however I did it very successfully with a pair of pliers. Even though they are a pain compared to standard servo connectors, they do have the advantage that they are significantly lighter in comparison. Which I guess is why they are used around in the RC market place.

Cheers,

Si.
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Old Apr 20, 2012, 01:35 AM
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Hi Big bird,
I'm shipping them with a pack of 5 molex picoblade connectors and matching crimp pieces.
I completely missed this on the ebay listing.
Excellent, this should come in more than handy.
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Old Apr 20, 2012, 04:55 AM
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I would love to have a low cost minima size rx with SPC for battery telemetry. Data port I can do without.
You need the data port or something similar like the FrSky has built-in for additional sensors

chewy
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Old Apr 20, 2012, 11:56 AM
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i've been outbid

Hi Simon, thanks for the info - i think your receiver idea is amazing... 300 metres range is fantastic and your solution of using crimp-on plugs is excellent

I would use these Rx's for all my small stuff / park fliers if they were available

obviously telemetry and volt-watch and SPC ain't gonna happen (not even desirable IMHO) in this weight class - but with a suitably low brown-out voltage for the Rx ... ..who cares

excellent work !
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Old Apr 20, 2012, 02:07 PM
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i've been outbid

Hi Simon, thanks for the info - i think your receiver idea is amazing... 300 metres range is fantastic and your solution of using crimp-on plugs is excellent

I would use these Rx's for all my small stuff / park fliers if they were available

obviously telemetry and volt-watch and SPC ain't gonna happen (not even desirable IMHO) in this weight class - but with a suitably low brown-out voltage for the Rx ... ..who cares

excellent work !
Could have a spc style port up to 3s using a linear regulator and keep the design small still. Plus the chip has an adc so could read the voltage. I could imagine a built in telemetry current monitor too. No reason why a brushless esc couldn't be on there too as horizon do.

problem is that telemetry requires more work for ce and fcc approval. So pushing up the cost. Also a extra ic would be needed to get decent telemetry range. Pushing cost and size up again.

Si.
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Old Apr 20, 2012, 03:15 PM
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Could have a spc style port up to 3s using a linear regulator and keep the design small still. Plus the chip has an adc so could read the voltage. I could imagine a built in telemetry current monitor too. No reason why a brushless esc couldn't be on there too as horizon do.

problem is that telemetry requires more work for ce and fcc approval. So pushing up the cost. Also a extra ic would be needed to get decent telemetry range. Pushing cost and size up again.

Si.
Does an Optima have separate transmitter and receiver chips or does it have just one transceiver chip? When I suggested SPC I was talking if you were to actually partner with someone like FrSky to build a RX based on your work. But 3S would be sufficient in a micro/mini rx.
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Old Apr 21, 2012, 11:45 AM
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Does an Optima have separate transmitter and receiver chips or does it have just one transceiver chip? When I suggested SPC I was talking if you were to actually partner with someone like FrSky to build a RX based on your work. But 3S would be sufficient in a micro/mini rx.
The RF is a transceiver chip but the transmit power is only +1dBm, so without a power amplifier the range would be only 20-30metres. The same is with the receive. It's fairly sensitive but without a low noise amplifier, its around 300 metres (hence the range of a vd5m).

So a full range telemetry receiver has a additional ic (you can get the power amplifier and low noise amplifier) on the RF front end to offer the larger range.

There are other commercial receivers that I could possibly put the firmware on and so make a low cost full range receiver for Hitec. However nothing is confirmed yet so can't say too much at the moment. Stay tuned!

Si.
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Old Apr 21, 2012, 02:37 PM
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Now don't you go using Spek hardware as organ donors Si, we got off of that stuff for a reason!

Unless you manage to reflash an AR7200BX.
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Old Apr 22, 2012, 05:54 PM
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Unless you manage to reflash an AR7200BX.
I think we should ban you for that suggestion. Lol.
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Old Apr 24, 2012, 04:26 AM
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from various comments on the thread, are there are two sets of interests at play here? - one being to make an additional micro Rx to complete the Hitec range by going smaller size / lower weight...

the other, simply to make a low cost alternative to the current Hitec offer, without any weight stipulation?

the former being minimalist, the latter possibly being all-singing all-dancing ?
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Old Apr 24, 2012, 04:57 AM
Rusty Team RC
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+1

I can't agree more!
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