Test Mode / RF Commands

This page documents AT commands used for test mode, RF transmission, and modulation configuration in HaLow firmware 2.x modules.

Query:

AT+TEST_START=?

Set:

AT+TEST_START=1

*(start test mode)*

<code>AT+TEST_START=0</code>  *(stop test mode)*

Response:

1:+TEST_START:test mode started
0:+TEST_START:test mode stopped
OK

Notes:

• Test mode allows RF Tx/Rx tests
• Settings are not saved after power-off

Query:

AT+LO_FREQ=?

Set Frequency:

AT+LO_FREQ=924000

*(KHz, 924 MHz)*

Response:

LO freq = 924000 KHz

Notes:

• Freq unit = KHz
• Not saved after power-off

Query:

AT+TX_START=?

Set Tx Mode:

AT+TX_START=1

*(start Tx)*

<code>AT+TX_START=0</code>  *(stop Tx)*

Response:

1:+TX_START:tx test started
0:+TX_START:tx test stopped
OK

Notes:

• Tx mode is selected while in test mode
• Rx mode remains default
• Not saved after power-off

Query:

AT+TX_MCS=?

Set MCS:

AT+TX_MCS=2

Response:

+TX_MCS:255
OK

Notes:

• 255 = automatic MCS adjustment
• Range: 0~7, or 10 in 1M mode
• Fixed values override auto adjustment
• Not saved after power-off

* Test mode commands are useful for RF performance evaluation and calibration. * Always ensure the module is in test mode before using frequency or Tx commands. * Settings in test mode do not persist after power-off.