Electronics > Projects, Designs, and Technical Stuff
Instead of Lora, what?
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panoss:
I 've made a Lora (RA-01) temperature meter.
I want to put the transmitter on the top of a 7 floor building.
The receiver on the ground.
This means the signal will have to be able to pass through 7 floors.
I haven't tested it yet if it can do this, but I was thinking of alternatives in case it fails.

For example, I have a wireless door bell which works in a long distance and through many walls.
I guess it has a quite strong transmitter.
So how could I use a transmitter and a receiver from a door bell with an arduino?
JVR:
Dont plan to fail. LoRa should do it easy enough if the RF design was done properly. If not, there are always PA's available.
panoss:

--- Quote from: JVR on April 18, 2019, 01:15:27 pm ---if the RF design was done properly.

--- End quote ---
What RF design? I just connected the Lora module with the Arduino, what RF design are you talking about?


--- Quote from: JVR on April 18, 2019, 01:15:27 pm ---there are always PA's available.

--- End quote ---
What are PA's?
JimRemington:
PA = power amplifier.

Be sure to use antennas on the RF modules.
ogden:

--- Quote from: panoss on April 18, 2019, 11:15:32 am ---I 've made a Lora (RA-01) temperature meter.
I want to put the transmitter on the top of a 7 floor building.
The receiver on the ground.
This means the signal will have to be able to pass through 7 floors.
I haven't tested it yet if it can do this, but I was thinking of alternatives in case it fails.

--- End quote ---

Sigfox then. Yet, it is not much better than LoRa, IMHO. Anyway 7-floor building does not mean that radio waves have to pass through 7 floors in straight line. They have ability to reflect/bounce. Most likely LoRa will be fine in any building having any number of floors unless that building stands alone in the middle of the nowhere. If you need hi-reliability system - make space-division MIMO (at least two base stations located in different locations).
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