RA-08H AT Settings for AU915

ph30n1x · November 11, 2024, 10:10am

Hi, I have some Makerfab LoRaWAN soil sensors (https://www.makerfabs.com/lorawan-temperatur-humidity-soil-moisture-sensor.html) that I am attempting to connect to TTN.
The sensor has an Atmega328P connected to an ai thinker ra-08h module connected by serial and controlled via AT commands. I have uploaded the AU915 firmware (LoRaWAN 1.0.3 Spec) from https://docs.ai-thinker.com/en/lorawan.
The issue I am seeing is that the ra-08h module does not appear to be keeping to the uplink channels, and keeps transmitting on downlink channels (with sporadic use of the actual uplink channels). I have tried multiple configurations to try to get the connections reliable however it doesn’t appear to be working. I have not been able to see any posts about using the ra-08h on the AU915 range with TTN. I hope someone may be able to assist with what may be the root cause (which I hope isnt the AU915 firmware released by ai-thinker).

I have gone through the AT commands document https://docs.ai-thinker.com/_media/lora/docs/ra-08_at_instruction.pdf and there doesnt seem to be any way to manually set the channels other than the frequency mask.

The AT configuration for the following log.

    sendData("AT+CCLASS=0", AT_TIMEOUT);
    sendData("AT+CFREQBANDMASK=0002", AT_TIMEOUT);
    sendData("AT+CJOINMODE=0", AT_TIMEOUT);
    sendData("AT+CRXP=0,8,923300000", AT_TIMEOUT);
    sendData("AT+CULDLMODE=1", AT_TIMEOUT);
    sendData("AT+CRX1DELAY=5", AT_TIMEOUT);
    sendData("AT+CCONFIRM=1", AT_TIMEOUT);
    sendData("AT+CADR=1", AT_TIMEOUT);
    sendData("AT+CAPPPORT=2", AT_TIMEOUT);

logs for the above configuration

---------------- Start----------------
[First Task]
AHT10 Read Success.
AT
gc|γ⸮A"P⸮c|N⸮
##############################################ASR6601:~# 
ASR61:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CDEVEUI=REDACTED

OK

ASR6601:~# 
AT+CAPPEUI=REDACTED

OK

ASR6601:~# 
AT+CAPPKEY=REDACTED

OK

ASR6601:~# 
AT+CCLASS=0

OK

ASR6601:~# 
AT+CFREQBANDMASK=0002

OK

ASR6601:~# 
AT+CJOINMODE=0

OK

ASR6601:~# 
AT+CRXP=0,8,923300000
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CULDLMODE=1

OK

ASR6601:~# 
AT+CRX1DELAY=5
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CCONFIRM=1
D⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CADR=1
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CAPPPORT=2
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
---------------- Inital Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 924600000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 927500000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 923800000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 925100000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 916200000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 926300000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 918800000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 924500000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 924800000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 923300000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 915200000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 923300000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 925200000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 924500000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 918200000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 927500000 Hz at DR 8
+CJOIN:OK
Joined
---------------- Join Successful----------------
BAT ADC:0
BAT VOL:0
SOIL ADC:820
SOIL PER:100
TEMPERAUTRE:23
HUMIDITY:57
TX COUNT:1
AT+DTRX=1,1,14,17390334000001
AT+DTRX=1,1,14,17390334000001
H⸮jjiU9⸮07

ASR6601:~# TX on freq 921400000 Hz at DR 3

ASR6601:~# RX on freq 927500000 Hz at DR 11
RX on freq 923300000 Hz at DR 8

ERR+SENT:01

---------------- Reattempt Send----------------
AT+DTRX=1,1,14,17390334000001
AT+DTRX=1,1,14,17390334000001
H⸮jjiU9⸮07

ASR6601:~# TX on freq 924400000 Hz at DR 3

ASR6601:~# RX on freq 926900000 Hz at DR 11
RX on freq 923300000 Hz at DR 8

ERR+SENT:01

---------------- Reattempt Send----------------
AT+DTRX=1,1,14,17390334000001
AT+DTRX=1,1,14,17390334000001
H⸮jjiU9⸮07

ASR6601:~# TX on freq 926400000 Hz at DR 3

ASR6601:~# RX on freq 923300000 Hz at DR 11
RX on freq 923300000 Hz at DR 8

ERR+SENT:01

---------------- Too Many Reattempt--------------⸮K⸮
[Task Over]
.

Changed AT+CULDLMODE to 2

logs (doesnt even join this time)

---------------- Start----------------
[First Task]
AHT10 Read Success.
AT
gc|γ⸮EXe⸮v⸮⸮
##############################################ASR6601:~# 
ASR61:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CDEVEUI=REDACTED

OK

ASR6601:~# 
AT+CAPPEUI=REDACTED

OK

ASR6601:~# 
AT+CAPPKEY=REDACTED

OK

ASR6601:~# 
AT+CCLASS=0

OK

ASR6601:~# 
AT+CFREQBANDMASK=0002

OK

ASR6601:~# 
AT+CJOINMODE=0

OK

ASR6601:~# 
AT+CRXP=0,8,923300000
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CULDLMODE=2

OK

ASR6601:~# 
AT+CRX1DELAY=5
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CCONFIRM=1
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CADR=1
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
AT+CAPPPORT=2
H⸮j⸮H⸮H(MI⸮601:~# 
ASR6601:~# 
---------------- Inital Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 919200000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 925700000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 922600000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 926300000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 918800000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 924500000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 927600000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 926900000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 918400000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 923300000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 919400000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 926300000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 924400000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 926900000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 920200000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 923900000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 921000000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 926300000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 915800000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 925100000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

---------------- Reattempt Join----------------
AT
RASR6601:~# 
ASR6601:~# 
AT
RASR6601:~# 
ASR6601:~# 
AT+CJOIN=1,0,5,2

OK

ASR6601:~# TX on freq 915200000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 923300000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 923200000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 923300000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

ph30n1x · November 11, 2024, 10:19am

Some additional output directly from the RA-08H

###############################################

arch:ASR6601,CD8A3D04C1523201
company:Ai-Thinker|B&T
sdk_version:release/v1.6.2
firmware_version:release/V4.18_P1.4.0
compile_time:Oct 18 2022 14:46:33

ready

################################################
LoRaWAN for AU915
OTAA
DevEui= REDACTED
AppEui= REDACTED
AppKey= REDACTED
class type A
scan chn mask 0x0002

ASR6601:~#
ASR6601:~#
ASR6601:~#
ASR6601:~#
ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
ASR6601:~#
OK

ASR6601:~#
OK

ASR6601:~#
ASR6601:~#
OK

ASR6601:~#
ASR6601:~#
OK

ASR6601:~#
ASR6601:~#
OK

ASR6601:~#
ASR6601:~#
ASR6601:~#
ASR6601:~#
ASR6601:~#
ASR6601:~#
OK

ASR6601:~# TX on freq 926000000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 926900000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 922600000 Hz at DR 0
Start to Join, nb_trials:1
RX on freq 926300000 Hz at DR 8
RX on freq 923300000 Hz at DR 8
+CJOIN:FAIL

ASR6601:~#
ASR6601:~#
ASR6601:~#
ASR6601:~#
OK

ASR6601:~# TX on freq 925400000 Hz at DR 4
Start to Join, nb_trials:1
RX on freq 925100000 Hz at DR 12
RX on freq 923300000 Hz at DR 8
TX on freq 922800000

ph30n1x · November 21, 2024, 1:59pm

After pushing for a response from Ai Thinker, they finally responded with an updated AU915 firmware. The new firmware conforms to the channel mask command and for the past day has been operating as expected.
I cannot attach the firmware so anyone else who runs into this issue, the listed v1.4 firmware is to be ignored and you need to reach out to Ai Thinker for at least Ra-08H_AU915_V4.18_P1.7.1_20241030

system · November 22, 2024, 1:59pm

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