@carles-b
The point is to send the data from a place without wifi to a place with wifi so it can upload to a service that allows me to access and download the data remotely and graph the data... So I can visualize it/download it from any place I want.

I will make the question easy. If I use the Lora868 (the one from the tutorial you just sent me)... can the reciever upload the data to a service though its wiFi (built in a Raspberry Pi or another service like Cayenne..) so I can visualize the data online? Or I need the COM.LoRaWan for that.

@carles-b

Thanks! But I don´t quite understand. If I use the point-to-point (two Lora868) communication, I can send data from one M5 (the one that captures the data in the place with no internet connection) to the other M5 (the reciever, that is located in the house with wiFi) through LoRa. This way, I can upload the data to the network using the wiFi connection of the house.

In regard to the post you embbeded.. as far as I understand, the COM.LoRaWAN allows me to connect to The Things Network. But for that I need to buy a TTN Gateway and place it nearby. This is way more expensive than the point to point communication I mentioned before (200$ vs around 60$).

So... what is the benefit of using TTN instead of the two M5stack connected to each other? I get that one gateway can recieve data from multiple devices, but if theres only one device then I don´t see the benefit.

Thanks in advance!

Hi!

I basically want to pick up water flow measures (every 5-10 s). As the place where the measure is taken doesn´t have wifi, I want to send the data to the nearest place with wifi (300m - 2km max) through a LoRa module. I am pretty new to this so basically as far as I understand I would need:

2 M5Stack, one for sending and another for recieving.
2 LoRa modules.

But I see there are different modules.

Whats the difference between the Lora868 Module: https://m5stack.com/collections/m5-module/products/lora-module-868mhz

And the COM.LoraWan Module: https://m5stack.com/collections/m5-module/products/com-lorawan-module-868mhz-asr6501

Thanks in advance!

Hello!

I have been doing some research about this topic, and I only find ESP32 libraries. Obviously they should work in M5Stack as well, but as M5Stack has SD slot included, I am wondering if there is a custom library for this particular device that allows me to save the data with a timestamp (with milisecond precision) in the SD and retrieve it afterwards to send that data via wifi.

Thanks in advance!

Hello!
Im new into this forum and microcontrollers / IoT world, but somehow I decided to focus my university thesis in that. For backgrund purposes, its a smart rollator that measures some data from patients in a rehab center that use it to measure their rehab progress and other parameters....I decided to use a M5Stack to capture data from:

2 Weight amplifiers HX711 to measure force in the handlers.
Encoder as5600 1828raf c, one in each wheel.
2 standar servos, one in each brake, so the rollator can stop automatically in case of an user fall or potential danger.

But as I have never worked with electronics, I dont know how to conect them to M5 Stack correctly. The connection can be done straight away or do I need some other elements in between? Theres is around 50cm-1m of distance between the position of the M5Stack and the other sensors/actuators. The original rollator (it doesn´t have a IoT app on it, just captures data) uses and arduino nano for each sensor so the data can be transmitted via CAN BUS to a raspberry Pi. Is this neccesary for M5Stack?

Any kind of insight would be really helpful!
Thank you!