Ultra-Low Power and Long-Range Design of LoRa Modules

[ilianaboone]

In IoT projects, engineers often face a dilemma: achieving long-range communication typically requires high power, leading to soaring energy consumption; conversely, prioritizing low power consumption often results in significantly compromised communication range.

This module remains in a deep sleep state for the majority of the time, periodically waking up only to listen for wake-up signals. This mechanism enables battery-powered devices—such as remote field sensors—to achieve battery lifetimes spanning several years while simultaneously maintaining communication capabilities over distances of several kilometers. Furthermore, by flexibly adjusting the air data rate (ranging from 2.4 Kbps to 62.5 Kbps) and transmit power via AT commands, developers can strike the optimal balance between power consumption and communication range. For instance, power output can be reduced in short-range scenarios to conserve energy, while the data rate can be lowered in long-range scenarios to gain higher receiver sensitivity. This design philosophy makes it possible to truly "have the best of both worlds."

 

[Delta Prime]

transmit power via AT commands

Sure if you wanna blinking LED Several kilometers away!
Do you have a question?
Data rates are often in the hundreds of bits per second because of the small data packets transmitted asynchronously, latency is to be expected due to limited network capacity transmitted on unlicensed bands
leading to spectral interference your mesh network would become saturated not suitable for voice or video streaming,It all depends on ones application it’s always give-and-take.

 

[Martaine2005]

Do you have a question?

 

[Harald Kapp]

Sure if you wanna blinking LED Several kilometers away!
Do you have a question?
Data rates are often in the hundreds of bits per second because of the small data packets transmitted asynchronously, latency is to be expected due to limited network capacity transmitted on unlicensed bands
leading to spectral interference your mesh network would become saturated not suitable for voice or video streaming,It all depends on ones application it’s always give-and-take.

I don't think the op means "transmit power via AT command". The full meaning follows when you ignore the text in italics:

by flexibly adjusting the air data rate (ranging from 2.4 Kbps to 62.5 Kbps) and transmit power via AT commands

 

[Delta Prime]

I don't think the op means "transmit power via AT command". The full meaning follows when you ignore the text in italics:

I would agree with you but in doing so we would both be wrong.

 

[camerart]

Hi,
I am working on a similar project, and tried to change settings, using a button press menu. I found a problem where for my system to work all the settings need to be the same for it to work, so, as soon as one changes the other is incorrectly set, so failed. I am using a repeater, so this would be an added problem.
If changes could be made using time, as the change trigger, this would be ok, but the modules need an accurate clock that doesn't use much power.
C