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+--- Thread: GPS for LM-IoT-Edge (/showthread.php?tid=4173)
GPS for LM-IoT-Edge - hummelsystemhaus - 03.08.2022
Hey,
I want to read the current GPS position from the GPS antenna that is attached to the controller.
How do i install the necessary gpsd package, it doesn't work with opkg.
RE: GPS for LM-IoT-Edge - admin - 04.08.2022
The only solution at this moment is to read the data using Lua serial library and then parse it. This library can be used for parsing: https://github.com/1nv1/luaGPS
RE: GPS for LM-IoT-Edge - hummelsystemhaus - 04.08.2022
(04.08.2022, 06:53)admin Wrote: The only solution at this moment is to read the data using Lua serial library and then parse it. This library can be used for parsing: https://github.com/1nv1/luaGPS
And how do i read from the device? A quick test with:
Code:
require('serial')
port, err = serial.open('/dev/ttyUSB1')
log(port, err)
-- script will wait for 10 characters for 20 seconds
data, err = port:read(10, 20)
log(data, err)Code:
test 04.08.2022 16:41:51
* arg: 1
* luaserial
* arg: 2
* nil
test 04.08.2022 16:42:11
* arg: 1
* nil
* arg: 2
* string: timeoutRE: GPS for LM-IoT-Edge - admin - 04.08.2022
You need to start GPS by sending AT+CGPS=1\r\n to /dev/ttyUSB2. This has to be done on every system boot. You can also try sending AT+CGPSAUTO=1\r\n to enable automatic GPS start.