Dragino LHT65 User Manual

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LHT65 Temperature & Humidity sensor 34 / 56
3.2 Set External Sensor Mode
Feature: Change External Sensor Mode.
AT Command: AT+EXT
Command Example
Function
Response
AT+EXT?
Get current external sensor mode
1
OK
External Sensor mode =1
AT+EXT=1
Set external sensor mode to 1
AT+EXT=4,1
Set to use Interrupt Mode.
Sent uplink packet in both rising and falling interrupt
AT+EXT=4,2
Set to use Interrupt Mode.
Sent uplink packet only in falling interrupt
AT+EXT=4,3
Set to use Interrupt Mode.
Sent uplink packet only in rising interrupt
AT+EXT=5
Set to use illumination sensor
AT+EXT=6,1000
Set to use ADC sensor mode and LHT65 will power the external ADC
sensor for 1000ms before sampling the ADC value
Timeout range can be : 0 ~ 65535
AT+EXT=7,0
Set to counting mode and count at falling interrupt
AT+EXT=7,1
Set to counting mode and count at rising interrupt
AT+EXT=8,0
Set to 4 bytes counting mode and count at falling interrupt
AT+EXT=8,1
Set to 4 bytes counting mode and count at rising interrupt
AT+EXT=9
Set to external DS18B20 with timestamp
Downlink Command: 0xA2
Total bytes: 2 ~ 5 bytes
Example:
 0xA201: Set external sensor type to E1
 0xA20401: Same as AT+EXT=4,1
 0xA20603E8, Same as AT+EXT=6,1000
 0xA2080100, Same as AT+EXT=8,0
 0xA2080101, Same as AT+EXT=8,1
 0xA20702003c,Same as AT+SETCNT=60

Dragino LHT65 Specifications

General

Brand	Dragino
Model	LHT65
Category	Accessories
Language	English