Hi,
I am trying to get the distance from the ESP8266 chip. I am getting the RSSI value which is not very reliable. I am planning to use Link Quality Indicator (LQI) . But I am not able to find any API for the same.
Can anyone provide me the API for LQI for ESP-8266.
For example, in the MC13224v by Freescale,the formula of computing LQI in MC13224v is as follows:
LQI(dBm) = (LQI(dec)/3− 100)
In the API provided by MC13224v, the function MLMELinkQuality() can be used to return a pointer referring to a 8-bit LQI value.
thanks,
Rupak
Link Quality Indicator (LQI) API for ESP8266 family
Re: Link Quality Indicator (LQI) API for ESP8266 family
Postby pratik » Thu Mar 30, 2017 12:32 am
The RSSI indicator is what you get right now in the SDK. We may add other APIs in future SDK releases.
Note that because multipath propagation effects rule in indoor applications, RSSI is not the way you should measure distances. LQI may work, but not sure how much you can trust that either.
Note that because multipath propagation effects rule in indoor applications, RSSI is not the way you should measure distances. LQI may work, but not sure how much you can trust that either.
Re: Link Quality Indicator (LQI) API for ESP8266 family
Postby rupak426 » Fri Mar 31, 2017 2:06 am
Hi Pratik,
I am aware of these two indicators for distance measurement. Is there any other API/indicator present for distance measurement in 8266 family. I need that for my project which is for indoor application.
thanks,
Rupak
I am aware of these two indicators for distance measurement. Is there any other API/indicator present for distance measurement in 8266 family. I need that for my project which is for indoor application.
thanks,
Rupak
Who is online
Users browsing this forum: No registered users and 3 guests
Login
Newbies Start Here
Are you new to ESP8266?
Unsure what to do?
Dunno where to start?
Start right here!
Latest SDK
Documentation
Complete listing of the official ESP8266 related documentation release by ESPRESSIF!
Must read here!
- All times are UTC+08:00
- Top
- Delete all board cookies
About Us
Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. We are the manufacturer of ESP8266EX.