Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 199 / 231
AT+QRXGAIN=8192 //Set digital gain to 8192.
OK
AT+QRXGAIN? //Query the current configuration.
+QRXGAIN: 8192
OK
12.12. AT+QIIC IIC Read & Write
The command is used to configure the codec via IIC interface.
Parameter
These parameters will not be saved.
AT+QIIC IIC Read & Write
Test Command
AT+QIIC=?
Response
+QIIC: (0,1),(0~0xff),(0~0xff),(1,2),(0~0xffff)
OK
Write Command
AT+QIIC=<rw>,<device>,<addr>,<byt
es>[,<value>]
If all configuration parameters are entered:
Response
OK
If all configuration parameters are omitted:
Response
+QIIC: <value>
OK
Maximum Response Time
300ms
<rw> 0 Write command
1 Read command
<device> 0-0xFF 7-bit device address
<addr> 0-0xFF Register address
<bytes> 1-2 Read/write bytes
<value> 0-0xFFFF Data value
NOTE

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC