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Support for LoRa and LoRa modelm for RTK Base and Receiver

Hi,

Would LoRa Radio and LoRa Modem supported for Polaris Alpha RTK in near future?

Or could this LoRa modem works with your Alpha RTK?

Thanks, Noli

I think this one. It has Bluetooth and LoRa

Hi,
I bought a pair of LORA radios (DTU E32 433MHz). I could connect one to an Alpha receiver (as a Base) and the other radio to my pc so I checked the info was flowing right. Unfortunately I couidn’t check yet with the Alpha rover and how it works both with TTL (RTK fixes) and Bluetooth (mobile app) connection.at the same time.

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I configured for a friend with the DTU E90 the best configuration was the one in the image below and it only works if the base is in RTCM mode, in skytraq mode it doesn’t work for me.

configuração funcional do e90 dtu

With E32 it should also work

ola amigo esse Lora Radio e o LoRa Modem serve para usar no Alfa + rtk

funciona sim mas so consegui com a base em rtcm

works yes but I only managed with the base in rtcm

Jadilson
Chegou meu E90- DTU 433L37.
Você poderia mostrar como ligou o Bluetooth Hc06 no rádio e onde conseguiu abaixar o Rf setting V1.7
não consegui achar no Sit da Ebyte nem um link no manual do produto.
O módulo com entrada db9 é muito caro.
Obrigado

Eu usei esse

https://drive.google.com/file/d/1OSP_RRciwzBi0ff5KuA5neGWLA_yh22M/view?usp=sharing

Valeu, se der certo faço um vídeo com o S100.
Obrigado

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Alpha+ fica assim a base em modo RTCM

Jadilson, a última informação.
A ligação do Hcp6 no rádio lora como fica?
O RADIO só vai transmitir a correção de NTRIP recebida pelo celular através do lefebure, não é isso?
No vídeo que você fez não mostra a ligação do Bluetooth nas saídas vcc gnd 485a e 485b, como ficou?
Quero ver se recebo os dados no S100 rover com a coletor e o Fieldgenius.
Obrigado

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Ficaria assim

No meu caso fiz uma bateria com duas saídas uma de 12v pro radio (DTU) e uma de 3.3 v para o hc-06, se o radio e o hc-06 estiver na mesma fonte de energia não precisa do fio preto entre o hc-06 e o DTU.

Valeu, vou começar a montar hoje.
Obrigado

What abouth this
https://www.amazon.com/SX1262-LoRa-HAT-Raspberry-Communication/dp/B0822Z3CX8/ref=sr_1_9?dchild=1&keywords=raspberry+with+radio&qid=1613515959&s=electronics&sr=1-9

https://www.amazon.com/SX1262-LoRa-HAT-Raspberry-Communication/dp/B0822Z3CX8/ref=sr_1_9?dchild=1&keywords=raspberry+with+radio&qid=1613515959&s=electronics&sr=1-9

It should work but I don’t know anything about Raspberry Pi, I prefer the dtu pro alpha +

Hello. Could you show a photo or drawing of how to connect the Alpha receiver to the E32? Also the settings of the E32? Thank you! I have 2 units of the E32 DTU, but I still can’t connect it to the Alpha+ receiver.

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Hi Mark, sorry for the late reply.
I used the same scheme as shown by Jadilson (see oct 20 post). I have not been able to find the appropriate configuration (E32-DTU uses RF_setting_v3.49 ). Also I am not sure the byte length of the RTCM message (E32-DTU seems to send 512bytes packets). So I have some doubts:
1- The correct configuration of the radios.
2- A Ttl Rs485 converter is needed?
Then, in the Rover, I don’t know if the Alpha+ module in TTL mode allows a Bluetooth connection for the collector.
Do you have a complete RTCM 3.0 message? So you can compare it with the messages sent by the radio. It is a first step!

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I think this is the problem
image

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I also noticed this when I checked the manual. I didn’t really understand what it meant :sweat_smile: I am not very good with electronic communications. Anyway, I tried using the E32 with a RS232-to-TTL UART converter and a RS232 male-to-male adapter. It didn’t work. I will try the E90 next. It wasn’t available locally before that’s why I had to buy the E32.