News: 8DI-8DO Industrial-grade Multi-function USB Relay Board PC UART COM Switch Module With Input Indicator Light DC 12V 24V UD85C08
UD85C08 is a newly designed 8-channel USB relay module from eletechsup. It is an upgraded version of the old version. It uses industrial-grade relays and optimizes the layout and wiring of components to make it more durable. It adds 8 input indicators to make it more convenient to observe the input status.
Features:
1: Working voltage: DC 12V/24V optional
2: (DC12V)Standby current (all relays closed) 12MA, 1 relay open 40MA, 2 relays open 68MA, 3 relays open 96MA,4 relays open 122MA,5 relays open 148MA,6 relays open 174MA, 7 relays open 199MA,8 relays open 223MA
3 8 photoelectric isolation Input ports (NPN low level active ), The input port directly controls the relay by default, and can also be set not to control the relay through instructions
4 UART serial port protocol, USB_B female interface (CH340 Chip)
5 USB interface supports Windows(WIN11 WIN10 WIN8 WIN7 WINXP), Linux and MAX OS
6: ''ON'' ''OFF'' ''Self-locking'' ''Interlock'' ''Momentary'' ''Delay'' ''All Relays Open'' ''All Relays Close'' 8 Commands
7 Two kinds of commands: AT command and 8-byte command, the two commands are automatically recognized, no need to switch.
8: Under the ''Delay'' command ,the maximum delay is 9999 seconds(Only AT command)
9 Size: 115 * 63 * 19mm
10 Weight: 124 g
11 Industrial Relays,Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC
Applications
Home Automation/Smart Home
Industrial Automation
Lighting Control
Garden Equipment Control
Test Fixtures
DIY and Hobby
Solenoid valve/motor/water pump control system


AT command (ASCII code)
Note:AT commands must be uppercase, lowercase invalid.
9600 Band ,8 Data bits,None Parity,1 Stop Bit. This commands has a delay function
Read Status:
Channel 1: AT+R1
Channel 2: AT+R2
Channel 3: AT+R3
Channel 4: AT+R4
Channel 5: AT+R5
Channel 6: AT+R6
Channel 7: AT+R7
Channel 8: AT+R8
Open(ON) :
Channel 1 : AT+O1
Channel 2 : AT+O2
Channel 3: AT+O3
Channel 4: AT+O4
Channel 5: AT+O5
Channel 6: AT+O6
Channel 7: AT+O7
Channel 8: AT+O8
Close(OFF):
Channel 1 : AT+C1
Channel 2 : AT+C2
Channel 3 : AT+C3
Channel 4 : AT+C4
Channel 5: AT+C5
Channel 6: AT+C6
Channel 7: AT+C7
Channel 8: AT+C8
Toggle (Self-locking)
Channel 1: AT+T1
Channel 2: AT+T2
Channel 3: AT+T3
Channel 4: AT+T4
Channel 5: AT+T5
Channel 6: AT+T6
Channel 7: AT+T7
Channel 8: AT+T8
Latch (Inter-locking)
Channel 1: AT+L1
Channel 2: AT+L2
Channel 3: AT+L3
Channel 4: AT+L4
Channel 5: AT+L5
Channel 6: AT+L6
Channel 7: AT+L7
Channel 8: AT+L8
Momentary (Non-locking)
Channel 1: AT+M1
Channel 2: AT+M2
Channel 3: AT+M3
Channel 4: AT+M4
Channel 5: AT+M5
Channel 6: AT+M6
Channel 7: AT+M7
Channel 8: AT+M8
Delay
Channel 1: AT+D1=XXXX
Channel 2: AT+D2=XXXX
Channel 3: AT+D3=XXXX
Channel 4: AT+D4=XXXX
Channel 5: AT+D5=XXXX
Channel 6: AT+D6=XXXX
Channel 7: AT+D7=XXXX
Channel 8: AT+D8=XXXX
XXXX refers to the 0000 to 9999 figures, Unit is seconds
All Relays Open
AT+AO
All Relays Close
AT+AC
Return command : OpenX, CloseX (X = 1/2/3/4/5/6/7/8/A)
Example 1:
Send command ''AT+D1=0010'', Channel 1 is ''Open'', after delay of 10 seconds, channel 1 is ''Close''
Send command ''AT+D2=0100'', Channel 2 is ''Open'', after delay of 100 seconds, channel 2 is ''Close''
Example 2:
Send command ''AT+L1'', Channel 1 is ''Open'', other Channels is ''Close''
Send command ''AT+L2'', Channel 2 is ''Open'', other Channels is ''Close''
Read input channel status:
Input channel 1: AT+I1
Input channel 2: AT+I2
Input channel 3: AT+I3
Input channel 4: AT+I4
Input channel 5: AT+I5
Input channel 6: AT+I6
Input channel 7: AT+I7
Input channel 8: AT+I8
Return: ONx, OFFx ((x=123…8)
Example 1 Read input channel 1, channel 1 has input Send command: AT+I1, return ON1
Example 2 Read input channel 2, channel 2 has no input Send command: AT+I2, return OFF2
Set input and output relationship (8 channels set together):
AT+G0 Unrelated ; return: OK0
AT+G1 Self-locking relationship (default); return: OK1
AT+G2 Interlocking relationship; return: OK2
AT+G3 Momentary relationship; return: OK3
Other values are invalid, no return