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Using Radio with S100

https://www.polaris-gnss.com/blog/using-radio-with-s100

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Hi Jackson,

Can this hack works with Alpha+?

Any instruction how to connect this hack in Alpha+ for Base and Rover.

Is Alpha+ usb can be used as well for this hack connection?

Probably, you can do a blog about this like this one.

https://www.polaris-gnss.com/blog/using-arduino-due-and-raspberry-pi-with-10hz-alpha-rtk?send_to=%2Fblog

Having a cheap Lora radio using your hack or using RAK 811 would be useful for Alpha+ Base and Rover for UAV Mapping and Survey.

Noli

Alpha+ already has UART interface, does not need such USB-to-UART converter.

Here is a description on using Alpha+ with radio:
https://www.polaris-gnss.com/blog/setting-up-alpha-for-sending-and-receiving-correction-data-between-base-and-rover-using-radio

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So, we can connect this radio directly to the radio port of Alpha+ and will work?

So now, the question:

a) should we connect the green wire (TX) from the radio wire - yellow ? or
b) should we connect the green wire (TX) from the radio wire - white ?

What is the color of the wire to Alpha+ UART0_RXD for radio receiver?

Edit:

OK. PIn 2 in 6-pin port or Yellow.

OK. You are referring to this radio that has serial port. I think this is better, 8km range.

915Mhz

915Mhz but only 3km range
https://www.aliexpress.com/item/33014352794.html?spm=a2g0o.detail.1000014.1.39e13c61aBzibP&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.14976.192201.0&scm_id=1007.14976.192201.0&scm-url=1007.14976.192201.0&pvid=687a0aaf-33fe-4828-b841-125d2159bbc7&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.14976.192201.0,pvid:687a0aaf-33fe-4828-b841-125d2159bbc7,tpp_buckets:668%230%23131923%2316_668%23808%233772%23208_668%23888%233325%2313_4976%230%23192201%2312_4976%232711%237538%23183_4976%233104%239653%237_4976%234052%2318551%2374_4976%233141%239887%237_668%232846%238108%23114_668%232717%237567%23986_668%231000022185%231000066058%230_668%233422%2315392%23398_4452%230%23189858%230_4452%233474%2316498%23899_4452%233098%239599%23507_4452%233564%2316062%23111

So we need this one.

For radio transmitter side, data flow direction is from Alpha+ UART output to radio UART input, so output data is from pin-3 of the Alpha+ 6-pin connector.

For radio receiver side, data direction is from radio UART output to Alpha+ UART input, so output data from radio is to go to pin-2 of the Alpha+ 6-pin connector.

Common ground connection between radio and Alpha+ pin-6 is also required.

Hi Jackson,

Thanks for posting a blog on this topic.

I just like to clarify what do you meant on this:

“For radio transmitter side”, is this Alpha+ base radio side?

“For radio receiver side”, is this Alpha+ rover radio side?

Noli

Yes, that’s correct.

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Could Polaris manufacture radios for its gnss receivers?

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We are working on a design…

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Great! We’ll be waiting for…

Its an excellent news!

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Sería excelente que tenga radió y batería interna un modelo más completo

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Can the Raspberry Pi 3B+ be used instead of the Raspberry Pi Zero to connect radios on S100?