Simulate an uplink? Can’t be done.
An uplink is your device sending a message out in to the ether, a gateway or more picks it up, relays the data to TTN, if the keys are OK, it sends it to your application console.
If uplinks aren’t working, downlinks (devices receiving) will never ever happen.
Easily checked indeed:
Format of Keys and ID’s for Arduino LMIC libraries [HowTo]
Above holds for both for Classic LMIC and MCCI LMIC.
I simply don’t know if your LMIC library uses MSB or LSB for ABP.
If the LMIC library used is different than Classic LMIC and MCCI LMIC then I would suggest to use and test with either of these libraries in the first place.
For information about naming see: Arduino LMIC library naming: Classic LMIC and MCCI LMIC [HowTo]
No, because we will not see those people on the forum. 
I urged use of the Classic Matt LMIC, the OP tends to switch between tests …
Dang, and here’s me having just upgraded last night to an i7, 24GB and GTX 970 to run Condor (Sailplane) flight simulator better - but if I put a LoRaWAN temperature sensor device on the CPU & GPU, I’ll be back to you with support questions.
OK, my device is sending “hello world” once a minute. I posted above more details that It outputs in the console. Do you want to re-post it one more time or I don’t understand something…
If you could - it’s got to be a long thread, I’ve just scrolled through and can’t see anything obvious, over the life of the thread I’ve probably contributed to 30+ other posts here & on RAK forum, I’ve built multiple devices, had a major tooth abscess and a birthday (so I’m even older now). So my brain is full!
This screenshot you wanted to see?
Sorry, no, the TTN console, like this:
This is a device like yours, with a DHT11 and a DS18B20 on it, using the same code base.
Which means I’ll need to turn the heating on in that part of the building for lunch time.
This one?
I don’t see any uplink here…
My screen shot says “Uplink”, so that’s a BIG no from me, says Simon Cowell.
There should be a counter entry and it should show the current time so we know the devices is currently uplinking. I am aware you are in Paris, so I’ll translate the timezone info.
But my screenshot says, I don’t have any uplink message received.
If that is the case, then your Arduino has commanded the radio chip but it doesn’t know that nothing was actually transmitted. Which means it is likely you have fried some part of the RFM95 when it was connected to 5V …
No, it shows the first line of the log, I don’t know if you put in a downlink and have an uplink underneath that you didn’t show.
Well, if I will test Lora to Lora node communication, this should prove that my modules are not yet fried, that’s right?
Yes, or use an SDR dongle to look for the chirp.
Look at the filters, they are enabled all, to show me all messages, uplink, downlink an so on. I expanded only downlink sheduled message (that you suggested me to test) because there is no other messages to show.
OK, then I will test one more time Lora to Lora communication to see if my modules are alive.
A fried module is a dead module, isn’t? Yesterday I’ve simulated a dead module, do you remember? So my module is alive, logically.
The crop on the screen shot could show an uplink that I can’t see, regardless of filters.
You were asked to verify an uplink here, that is the only test I’ve been interested in for about 1d now:
Test with LoRa to LoRa and if that’s working, the volunteers here will try & get you going.
In the while, may show_lora_device_info sketch prove that my module is not fried?
2_Register_Test Starting
LoRa Device found
Device version 0x12
Frequency at Start 868199936
Registers at Start
Reg 0 1 2 3 4 5 6 7 8 9 A B C D E F
0x00 00 88 1A 0B 00 52 D9 0C CC 8E 08 2B 01 8F 00 00
0x10 00 FF 00 00 00 00 00 00 00 00 00 00 00 72 90 05
0x20 00 08 1A 40 00 00 04 00 00 00 00 00 00 50 14 40
0x30 00 C3 05 67 1C 0A 03 0A 42 34 40 1D 00 A1 00 00
0x40 C0 00 12 24 2D 00 03 00 04 23 00 09 05 84 32 2B
0x50 14 00 00 0F 00 00 00 0F E0 00 0C 00 07 00 5C 78
0x60 00 19 0C 4B CC 0E 41 20 04 47 AF 3F EC 00 09 0B
0x70 D0 01 10 00 00 00 00 00 00 00 00 00 00 00 00 00
Change Frequency to 868100000
Changed Frequency 868099968
Reg 0 1 2 3 4 5 6 7 8 9 A B C D E F
0x00 00 88 1A 0B 00 52 D9 06 66 8E 08 2B 01 90 00 00
0x10 00 FF 00 00 00 00 00 00 00 00 00 00 00 72 90 05
0x20 00 08 1A 40 00 00 04 00 00 00 00 00 00 50 14 40
0x30 00 C3 05 67 1C 0A 03 0A 42 34 40 1D 00 A1 00 00
0x40 C0 00 12 24 2D 00 03 00 04 23 00 09 05 84 32 2B
0x50 14 00 00 0F 00 00 00 0F E0 00 0C 00 07 00 5C 78
0x60 00 19 0C 4B CC 0E 41 20 04 47 AF 3F EC 00 09 0B
0x70 D0 01 10 00 00 00 00 00 00 00 00 00 00 00 00 00
Change Frequency to 868200000
Changed Frequency 868199936
Reg 0 1 2 3 4 5 6 7 8 9 A B C D E F
0x00 00 88 1A 0B 00 52 D9 0C CC 8E 08 2B 01 91 00 00
0x10 00 FF 00 00 00 00 00 00 00 00 00 00 00 72 90 05
0x20 00 08 1A 40 00 00 04 00 00 00 00 00 00 50 14 40
0x30 00 C3 05 67 1C 0A 03 0A 42 34 40 1D 00 A1 00 00
0x40 C0 00 12 24 2D 00 03 00 04 23 00 09 05 84 32 2B
0x50 14 00 00 0F 00 00 00 0F E0 00 0C 00 07 00 5C 78
0x60 00 19 0C 4B CC 0E 41 20 04 47 AF 3F EC 00 09 0B
0x70 D0 01 10 00 00 00 00 00 00 00 00 00 00 00 00 00