AES CTR with a non random and predictable nonce? after reading a lot of stuff about AES CTR and its IV i'm still not sure if it is ok to use a predictable IV or not.

I searched the web and found some programs / devices that use encryption in this way.

For example Lora. Lora is a low speed Network for exchanging data 
(temperatures or humidity sensors ) over a complete cities with thousands of devices.

Example:
I've found source code of the Lora Mac on the Web which is doing exactly that.

A Sequence counter that uses every value only once over the entire Node lifetime.

And a little 1 Byte counter for every new 16 Byte Block.

The IV is Initialized by

static uint8_t aBlock[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

after this

    aBlock[5] = dir;           ( direction of message)
    aBlock[6] = ( address ) &amp; 0xFF; (Hardware address of device)
    aBlock[7] = ( address &gt;&gt; 8 ) &amp; 0xFF; (Hardware address of device)
    aBlock[8] = ( address &gt;&gt; 16 ) &amp; 0xFF; (Hardware address of device)
    aBlock[9] = ( address &gt;&gt; 24 ) &amp; 0xFF; (Hardware address of device)
    aBlock[10] = ( sequenceCounter ) &amp; 0xFF; (counter that never repeats)
    aBlock[11] = ( sequenceCounter &gt;&gt; 8 ) &amp; 0xFF; (counter that never repeats)
    aBlock[12] = ( sequenceCounter &gt;&gt; 16 ) &amp; 0xFF; (counter that never repeats)
    aBlock[13] = ( sequenceCounter &gt;&gt; 24 ) &amp; 0xFF; (counter that never repeats)
    aBlock[15] = ( ( ctr ) &amp; 0xFF );  ( a counter value that is incremented for every 16 Byte Block)


Is this secure enough?

Source Code:
https://github.com/Lora-net/LoRaMac-node/blob/master/src/mac/LoRaMacCrypto.c
Line 108: void LoRaMacPayloadEncrypt()

http://www.semtech.com/wireless-rf/internet-of-things/
For CTR mode, a random IV is not needed. The only requirement be that the counter be unique in each block over all encryptions. (This is in contrast to CBC mode where unpredictability of the IV is essential.)