I am using the L96 with I2C. I have configured a fix interval of every 2 seconds (using PMTK220), and I have configured the output to be once every fix (using PMTK314). I needed the output to be this slow to not overwhelm the I2C.
However, is there any benefit to the GPS accuracy by having a faster fix interval than 2 seconds? We have for example seen some spidering, could this be reduced by a faster fix interval (but keeping the output interval at 2 seconds)?
Shameless bump of my own question
Hi @arurke
- The maximum I2C transmission rate of L96 can reach 400 kbps, so there is no problem even if NMEA is output once every 1s.
- If NMEA is output once per second, the positioning point will look more consistent, without large jumps and changes. If NMEA is output once every two seconds, especially during dynamic testing, the position change may be large.
- Is your test static or dynamic?
4.Please provide your email address and I will send you the relevant information via email.
Thank you George,
My test is static. I have seen the position suddenly jumps some hundred meters (typically when losing a satellite), and then slowly move back towards the correct position. I was wondering if increasing the fix interval (PMTK220) can speed up the process of returning to the correct position. Or, put more general: Are there are any benefits to having the fix interval (PMTK220) faster than the output interval (PMTK314)?
(I sent you my email in a private message)