scotthc asked 6 years ago
Hi,
Very new but studying hard. I didnt think it was possible to do more than point to point with the esp32’s. On amazon I found a reviewer that purchased an esp32 lora oled state this “I have several of these up and running on Wifi and 915Mhz Lora. Using one as a Wifi AP and Lora, the rest to send data to the AP using Lora only. Arduino IDE 1.8 with Radiohead RF95 Lora Library and the Oled library they recommend. I never tried the BlueTooth.”
Here’s the project I”m trying to set up. I have a maple syrup operation and want to put 20 vacuum sensors on my lines along with 4 tank level sensors and feed them all back to the sap house and display. This will allow me to know what lines are leaking vacuum and what levels my tanks are at.
I was pretty sure I would have to get a gateway to coordinate the sensors coming in to the sap house, but now I’m questioning if I can actually just use an esp32. Thanks in advance.
Scott
Sara Santos Staff answered 6 years ago
Hi Scott.
If I understood well, you want to send data from several ESP boards to one board (“gateway”) that would publish all the data.
In the library we’re using in the course, there is an example that builds a simple “gateway” <->node interaction. I think you need something like the following examples to build what you want using just ESP32 boards.
Gateway: https://github.com/sandeepmistry/arduino-LoRa/blob/master/examples/LoRaSimpleGateway/LoRaSimpleGateway.ino
Node: https://github.com/sandeepmistry/arduino-LoRa/blob/master/examples/LoRaSimpleNode/LoRaSimpleNode.ino
I haven’t tested these examples, but I hope this helps in your project.
Regards,
Sara 🙂