User's Guide

19
2. CO
2
value exceeds the Bad threshold.
6.3 Downlink Commands
AM103/AM103L support downlink commands to configure the device. The application port is 85
by default.
Example:
1. Set reporting interval as 20 minutes.
2. Reboot the device.
Channel
Type
Value
07
7d
0a 06 => 06 0a = 1546 ppm
Channe
l
Type
Description
ff
03 (Set Reporting Interval)
2 Bytes, unit: s
10 (Reboot)
ff (Reserved)
1a (CO
2
Calibration)
00: Factory Calibration Restored
01: Auto Background Calibration
03: Manual Calibration
2d (Screen Display)
00: disable, 01: enable
2f (LED Indicator)
00: disable, 01: enable
54 (Set CO
2
Threshold)
Byte 1: 00: disable, 01: enable
Byte 2-3: Bad threshold value
Byte 4-5: Polluted threshold value
Note: Polluted threshold value must lower than
bad threshold value.
56 (Screen Smart Mode)
00: disable, 01: enable
ff03b004
Channel
Type
Value
ff
03 (Set Reporting
Interval)
b0 04 => 04 b0 = 1200s
= 20 minutes
ff10ff
Channel
Type
Value
ff
10 (Reboot)
ff (Reserved)