RAK 7200 tracker

Today I received new test firmware:
Cayenne and TTNmapper are working fine.
Every 600sec the tracker is currently sending an update. The AT command at+set_config=lora:send_interval:5 is not working, AT format error. I’ve already informed RAK support.

  • The sensorLPS22HD is still not working, I think indeed a hardware failure.
  • The Lora range coverage is a lot less than my TTGO beam tracker. Testing still in process

Serial port tool:

Start Search Satellite …
Gps normal.
latitude: 52.xxxx, longitude: 5.1xxxx , altitude: 19.2m
Battery Voltage = 4.13 V
Acceleration(g) of X,Y,Z:
0.02,0.06,0.95
Gyro(degress/s) of X,Y,Z:
0.15,-1.68,0.10
Magnetometer(uT) of X,Y,Z:
26.10,-24.45,6.90
Press:0.0 hPa << not working
Temperature:0.0 degree <<not working
[LoRa]: Unconfirm data send OK

TTN field:
{
“accelerometer_3”: {
“x”: -0.024,
“y”: -0.062,
“z”: 0.95
},
“analog_in_10”: -24.45, Magnetometer(uT) of Y
“analog_in_11”: 6.9, Magnetometer(uT) of Z
“analog_in_8”: 4.01, <<<< what’s this?
“analog_in_9”: 26.1, Magnetometer(uT) of X

“barometric_pressure_6”: 0, << not working
“gps_1”: {
“altitude”: 19.2,
“latitude”: 52.xxx,
“longitude”: 5.1xxx
},
“gyrometer_5”: {
“x”: 0.15,
“y”: -1.68,
“z”: -0.1
},
“temperature_2”: 0 << not working
}

TBC, BR,

Jeroen

1 Like
  • is it possible to mount an external antenna

Yes, an ipex connector is inside. I’ll connect a better antenna to check if the range is increasing.
Unfortunately I cannot measure the TX Lora power.

Hi, Today I received mine.
Manual is incorrect. I followed suggestions from the RAK forum (https://forum.rakwireless.com/t/rak7200-node-gps-tracker/658) to be succesfull.

Now I get:

========================================================
______  ___   _   __  _    _ _          _               
| ___ \/ _ \ | | / / | |  | (_)        | |              
| |_/ / /_\ \| |/ /  | |  | |_ _ __ ___| | ___  ___ ___ 
|    /|  _  ||    \  | |/\| | | '__/ _ \ |/ _ \/ __/ __|
| |\ \| | | || |\  \ \  /\  / | | |  __/ |  __/\__ \__ \
\_| \_\_| |_/\_| \_/  \/  \/|_|_|  \___|_|\___||___/___/
========================================================
********************************************************
S76G_B version:3.1.0.3.H
********************************************************
========================================================
LIS3DH init successed!
DMP is disabled 
LPS22HD not found!
GPS Init OK

Selected LoRaWAN 1.0.2 Region: EU868
Initialization OK,Current work_mode:LoRaWAN, join_mode:ABP, Class: A
ABP: 
DevAddr: 260119C6
AppsKey: 4794D5046AAAACD0E114E8879E566DBA
NwksKey: DBD567972BBBBBF10CA91A1B6072D5C
[LoRa]:Joined Successed!
GPS Init OK
Start Search Satellite ...

After a reset I get regulary:

Gps normal.
latitude: 52.13320, longitude: 5.89685 , altitude: 62.5m 
Battery Voltage = 3.878 V 
ACC X: 0 mg, Y: 0 mg, Z: -256 mg 
GYRO X: 1  , Y: 0  , Z: 0   
MAGN X: -500, Y: 191, Z: 138 
[LoRa]: Unconfirm data send OK
GPS Init OK
Start Search Satellite ...
Gps normal.
latitude: 52.13318, longitude: 5.89685 , altitude: 73.7m 
Battery Voltage = 3.879 V 
ACC X: -512 mg, Y: 0 mg, Z: -256 mg 
GYRO X: 1  , Y: 0  , Z: 0   
MAGN X: -497, Y: 187, Z: 143 
[LoRa]: Unconfirm data send OK

When I try to set the interval to 60 seconds I get:

at+set_config=lora:send_interval:60
AT format error.

Unfortionately I have no TTN coverage where I am now. :frowning:
To be continued.

1 Like

but you can see a difference in your console

The correct code is at+set_config=lora:send_interval:1,60
manual is incorrect indeed,I already asked for an update, AT command list

1 Like

Yes, it is already improved. Today I’ll drive to work with the tracker with external antenna. Picture will folllow.

RAK will remove this sensor in the new firmware as it is not mounted on the board…

One other comment is on the leds:
afbeelding
I my case only led one is on. The others never go on.
Unfortionately the last sftware version is from August 2.

Performance with regards the coverage with external antenna increased amazingly! It looks now the same as my TTGO-beam as reference.
But…somehow not every gateway on my wy to work/home receives the packages…
I’ll investigate what’s going on.
Picture of my modification will follow this afternoon.

Reported the same to RAK.
My led 1 is sometimes working, sometimes not going ‘off’ after removing the charger.

Software: S76G_B version:3.1.0.4.

20190829_170139
modification for external antenna

2 Likes

I closed the enclosure before attaching the battery … any tips how to ‘crack’ it open again ? :scream:

x1541

x1542

45%20PM

:hammer: :pick: :bomb:?

1 Like

tnx… it worked :wink:

x1544

x1545

x1547

1 Like

First impression with firmware 3.1.0.5:

  • GPS sleep/awake works fine. The at+set_config=lora:send_interval variable will extend due to GPS sensor awake time
  • Batt charge LED is not working
  • The Magnetometer is not send with LPP standard code but as 3 seperate ‘voltage’ sensors:
    Serial port :
    Acceleration(g) of X,Y,Z:
    0.12,0.03,0.95
    Gyro(degress/s) of X,Y,Z:
    0.06,-1.35,0.15
    Magnetometer(uT) of X,Y,Z:
    41.25,1.35,5.40

TTN console:
{
“accelerometer_3”: {
“x”: 0.118,
“y”: 0.036,
“z”: 0.959
},
“analog_in_10”: 3.9,
“analog_in_11”: 5.1,
“analog_in_8”: 3.99,
“analog_in_9”: 40.2,
“gyrometer_5”: {
“x”: -0.04,
“y”: -1.39,
“z”: -0.12
}
}

  • Lora range is terrible with internal antenna. With external antenna it performs a lot better, but… the tracker is not seen by some gateways even within range. It is the same as previous firmware. My TTGO-beam works fine with those gateways. (in Dutch: in de polder geen verbinding met de Almere gateways…)
  • After a restart the serial port tool reports: Please Configurate parameters… and after a while it reports: Configuration OK!
  • Sensor error: LPS22HD not found!, but the temp/baro is indeed removed and not sent. The sensor is still in the boot enviroment.
  • Documentation with regards the AT-commands is not updated.
  • TTN mapper is not updated and Cayenne is not updated with regards GPS on every LORA update (it is received by the gateway. Looks like the GPS LPP protocol is incorrect, corrupted.

anyway thank you RAK for the good work!

BR,

Jeroen

1 Like

Only just noticed the move from '811 to Acsip radio module! :thinking: Hummmm…

Here are my 25 cents:

  • ABP works. configuring goes sometimes good sometimes bad. I used the RAK serial port tool. Hterm caused many problems.
  • AT responces are erratic, unpredictable, and un-understandable. I get OK and then “AT format error”.
  • Configure transmit interval fails: Whats going wrong?

at+set_config=lora:send_interval:300
AT format error.

I see references to TTN mapper. Is there any documentation on TTN mapper integration?

Hi Remko,

See my previous post regarding th e transmit interval: https://www.thethingsnetwork.org/forum/t/rak-7200-tracker/28940/16?u=jeroenkl

TTN mapper works when you enable the TTN mapper output in your console device.
Fomi already reported the bug is ‘back’ in 3.1.0.5 as it was solved in 3.1.0.4

BR,

Jeroen