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Forum Index : Microcontroller and PC projects : Anyone played with the WS LoRA version of the RP2040?
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9305 |
I spotted these today while browsing around on Waveshare website: LINK... Anyone played with these? $13 each sounds pretty reasonable. Smoke makes things work. When the smoke gets out, it stops! |
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| Volhout Guru  Joined: 05/03/2018 Location: NetherlandsPosts: 4222 |
Hi Grogster, I have not played with it yet, but it looks like a nice compact board. And the shielding might indicate they did their best to lower the noise floor. The main advantage of the new LoRa chip however (low power) does not really help with the RP2040, that cannot be geared into low power easilly. I think LoRa technology is nice for a "garden-shed" application that I have in my mind. But I may start out with some separate LoRa modules connected to Pico's for now (in which case I need to shield the pico myself with some tin can. Also you have to decide to buy "low band" or "high band". So I need to pull out a spectrum analyzer first to see what band has lowerst noice floor in my garden (I live in an urban area where the spectrum is cluttered with wireless systems (routers/wifi camera's/home automation systems, stand alone equipment like printers, TV sets), so this application I cannot use WIFI (despite the small garden), I won't even get 15 meter range outside. Inside the house, the concrete walls help shield all the neighbours WIFI, so local receiption is better, but outside.... a mess. If I run LinSSID I can see 30+ SSID's everywhere in the garden). Regards, Volhout P.S. For this application I was already looking at using 27MHz band. And build the system myself, there exist FM tranceiver chips that can be used for this. And the 27MHz band is free to use (although not for digital communication), and modulation can be some form of FM RTZ modulation, adding CRC (similar ModBus), so the system could be faitly robust. Simple technology. Back to basics. Alternatively, I dig in a UTP cable...feels even simpler. Edited 2024-11-07 17:30 by Volhout PicomiteVGA PETSCII ROBOTS |
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