Ultra low power consumption with STM8L151K4T6 + RFM90W.

[SunnyKatiyar09]

Hi I am starting a project for ultra low power consumption with STM8L151K4T6 + RFM90W, but not getting lora library for RFM90W.

Please help me with library and sample tx and rx code.

It will be very helpful, please suggest.

[Peter BENSCH]

Welcome @SunnyKatiyar09, to the community!

Have you ever used your favourite search engine to search for "STM32 RFM90W", for example?

I can immediately find a GitHub repository stm32-hal-rfm95 that you could start with. But remember that if you have any questions, you'll only get support there.

Good luck!
/Peter

[Peter BENSCH]

Oops, I only realised afterwards that it wasn't about STM32, but STM8, sorry. But I don't hold out much hope that someone has done something there.

[Tesla DeLorean]

That would seem like someone else's project..

I think CDEBYTE had some STM8 example for their Semtech designs.

Not sure there's anything magic for the RFM90W you couldn't port from other SX126x libraries or examples

https://www.hoperf.com/modules/lora/RFM90CW.html

They have some STM32F103 based code, perhaps start reviewing that, and how it might port.

[SunnyKatiyar09]

Hi,

The purpose to STM8L151K4T6 + RFM90W is,

it required very low power to operate (1.8V) and this will very helpful for our project.

Current I have solutions for power supply, and now enhancing our project that work with battery supply for long life.

If any better solution for this please suggest.

[MM..1]

Maybe show your idea, because module with RX 8mA and TX 100mA is ultra low power as ...

[SunnyKatiyar09]

Hi, Thank you for your reply,

I am working on Wireless Water Level Controller/Monitor (Using atmega328 and lora ra-01),

Now I am using power supply to Tx, but want to switch to battery for long life.

I have purchased STM8L151K4T6 and rfm90 (Both are working on low power as per datasheet)

1. question here : Is it possible to communicate between Rx(Atmega328+Lora ra-01) with Tx(STM8L151K4T6+Lora ra-01)?

2. Will it help to save battery power ? (with interrupt and deep sleep)

If yes then please provide some solutions from Tx side (lora library with sample).

If No, Please suggest.

Thank you so much.

[SunnyKatiyar09]

I have made Receiver as (Atmega328+lora sx1278) and Transmitter as (STM8L151K4T6+lora sx1278), 

Configured SPI pins and its able to communicate data.

Thank you so much for your suggestion.