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Getting Started with GPS Module || Reyax
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Feb 14, 2022
To download the GNSS Software I used, goto https://drive.google.com/file/d/1YLWSKSiCEmF_nalX6Ma9gUmyCC-gY2ug/view?usp=sharing l REYAX RYS8830：https://reyax.com/products/rys8830/ l Purchasing Link – TechDesign：https://www.techdesign.com/market/reyax/product-detail/ryx000004/rys8830?packing=Unit&tab=description l Purchasing Link – Amazon：https://www.amazon.com/REYAX-RYS8830-Glonass-Antenna-Interface/dp/B0881LRJZ3 l Cpark Solution LLP – REYAX Indian distributor：https://www.cparkb2c.in/product/reyax-rys8830/ ________________________________________________________________________________________ ******* SUPPORT US BY DONATING****** https://paypal.me/controllertech *******Join the Membership******* https://www.youtube.com/channel/UCkdqtSMnhYuMsJkyHOxiPZQ/join Join the Discord Server https://discord.gg/D32JE5wKyD
View Video Transcript
0:01
[Music]
0:09
hello and welcome to controllers tech
0:13
finally we have today the video about
0:15
the gps module
0:17
recently the rax technologies sent me
0:20
this breakout board with the gps module
0:23
and today i am going to show how to work
0:25
with it
0:26
the video on the gps will be covered in
0:29
two parts
0:30
in this video i will use the board with
0:32
the computer and some software to get
0:35
the gps data
0:37
in the next video we will cover the
0:39
interfacing with the sdm 32
0:41
microcontroller
0:43
if you are using any other gps module
0:46
like neo6m you should also first connect
0:49
it to the computer and see the results
0:51
in the software yourself
0:53
the output from all the gps modules is
0:56
mostly the same so interfacing them with
0:58
the microcontroller won't be an issue
1:02
let's see what this particular module
1:04
offers
1:06
this board have the connection options
1:08
for uart and i2c and here we can choose
1:11
what type of interface we want
1:13
as most of the gps modules use uart i am
1:17
going to go with uart also and this is
1:19
why i have connected the headers towards
1:21
the uart
1:23
the usb can be used to connect the
1:25
module directly to the computer
1:28
here is the gps sensor actually the ray
1:32
x uses the sensor from sony
1:35
this here is the product description for
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the sensor
1:41
like i said it uses the sony c x d 5 6 0
1:45
5 series and it's a multi g n s s
1:48
receiver which can be used for gps
1:50
glonass beto etc
1:56
it works with 1.8 volts and here we have
1:59
some current consumption table
2:02
this is the configuration for the i2c
2:04
and this for the uart
2:08
these are the g n s s center frequencies
2:12
the signal accuracy is 1 meter
2:15
then we have the time for the cold start
2:17
and hot start
2:27
here are the documents you can download
2:31
i have already downloaded them and we
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will go over each one of them here is
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the data sheet of the module
2:45
we have the block diagram the pin
2:47
description the same data we saw earlier
3:05
all right here is the interesting thing
3:08
the software used for monitoring
3:14
then we have some commands for different
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modes
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we can use these commands from the
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serial monitor but here we are going to
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use the software itself so these are not
3:25
needed
3:26
the software they have mentioned was
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very hard for me to find but i found it
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somehow
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i will post the link to it in the
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description just in case if someone
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needs it
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here is how it looks like
3:44
let's connect the module to the computer
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now
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here you can see it got detected as the
3:56
usb to uart bridge
3:59
next we will set up the serial port in
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the software
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port is 5 baud rate is 11 5 200 and then
4:07
we have 8 1 and n
4:10
everything is correct so save this
4:13
here we have the options for cold warm
4:16
or hot start
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let's go with hot start
4:21
after issuing the hot start command the
4:24
process starts within one second
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the sensor will start displaying the
4:29
values that are saved in its memory
4:31
until it gets a fix on the signal
4:34
this here shows the utc time and right
4:37
now it just started from zero
4:40
actually i have already set up the utc
4:42
time in the memory so let's wait for it
4:45
to read that one
4:46
anyway we don't have a fix right now so
4:49
let's save the nme a logs
4:52
we will compare these logs later with
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the ones when we will get the fix
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click start to start the logs
5:00
let's wait for 2-3 seconds and click
5:03
stop
5:06
on the right side here we can see the
5:08
number of satellites and their details
5:12
here is the log we just saved
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you can see the nme output from the
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sensor
5:20
this nmer format is basically same for
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all the gps modules
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so let's say if you are using a neo6m
5:29
instead you can use their software for
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this test
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the software representation might be
5:35
different but the nme output will be
5:37
similar for all the modules
5:45
all right here you can see it got the
5:48
uptime correct now
5:50
we still don't have the fix and that
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might be because i am still indoor
5:55
let me take this outside
5:57
one more thing in these logs the gp
6:00
stands for the gps
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since i am only using the gps mode it's
6:06
only searching for gps satellites
6:09
if you change the mode to glonass or
6:12
hybrid the output that is gp will also
6:16
change to gn or gl
6:18
as this module does supports the hybrid
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mode it can be used for getting the fix
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faster as compared to using only one
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system
6:27
all right we finally got the fix
6:30
here we have the latitudes and
6:32
longitudes we also have the altitude
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from sea level
6:37
let's start the logs after we got the
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fix
6:52
now you can see the data in the logs
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let's see what these numbers actually
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stands for
7:03
its explained in the software guide
7:06
here we have the n m e as specifications
7:14
let's see the r rmc specifications first
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first like i mentioned gp stands for
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using gps only
7:34
next we have the utc in our minutes and
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seconds format
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it's 7 hours 28 minutes and 44 seconds
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then we have the status if the data is
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valid or not
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next is the latitudes
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here 30 is degrees and 15 point 8 5 6 4
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in minutes
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n stands for north
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then longitudes zero 8 is degrees and
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rest is minutes and e stands for east
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then we have speed in knots we have the
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course in degrees
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here is the speed and this is the course
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this is the date which is 30th of
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january 20 22.
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basically the data from r m c is enough
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for the basic coordinates and time
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keeping
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but if you need other data also you can
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check out other outputs
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for example gga it also gives you the
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coordinates along with the time and it
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also shows if the fix is valid or not
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here 1 indicates that we have a valid
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fix
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other information like how many
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satellites are in use
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in our case it's 4
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we have the mean sea level altitude
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here it is
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592 meters
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this software do gives us the access to
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some of the settings like operating mode
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nmes settings etc
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in the nmer setting we can change which
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outputs we need for example if i just
9:52
select these two then then we still get
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the coordinates and other data but not
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everything
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like the number of satellites velocity
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and some other data is missing too if we
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log the output now we can see that there
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are only two outputs available in the
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nmea
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so depending on the application you can
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enable or disable nme outputs
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i am sure these settings are also
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available in other software so you can
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test them as per the module you are
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using
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so we got the coordinates using the
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software and we saw what kind of output
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does the module gives us
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in the next video i will interface it
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with the stm32 using the uart where we
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will get these coordinates and probably
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display them on the lcd or something
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the purchase links for the module i am
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using are in the description below
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you can check them out if you are
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interested
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this is it for this video
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leave comments in case of any doubt
11:02
be safe keep supporting and have a nice
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day ahead
11:09
[Music]
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you
#Consumer Electronics
#GPS & Navigation