Sonoff 4CH Pro User manual

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Sonoff 4CH PRO data JAN 2018
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Overview
Sonoff 4CH Pro is an ESP8285 WiFi module based 4 channel (4-way) WiFi wireless switch. It integrates
with MCU ST32F030C6 and 433MHz receiver. Sonoff 4CH Pro supports to connect and control 4 home
appliances, which can be separately turned on/off by app eWeLink and 433MHz remote. Users can
switch among 3 modes: self-locking mode, inching mode and interlock mode. In self-locking mode, users
can turn on/off the 4 connected devices independently. In inching mode, users can turn on connected
devices for 0.25-4s. In interlock mode, users can turn on 1 device every time, and turn off other devices
at the same time.
The enclosure supports din-rail mount! A DIN rail is a metal rail of a standard type widely used for
mounting circuit breakers and industrial control equipment inside equipment racks.
Sonoff 4CH Pro is hacker-friendly! You can flash external firmware!
Go shopping Sonoff 4CH Pro
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Sonoff 4CH PRO data JAN 2018
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Features
● Support independently turn on/off 4 home appliances
● Support to turn on/off home appliances by local toggle buttons
● Support tracking device status and remote control through APP
● Support control by 433MHz remote indoor
● Support switching among self-locking mode, inching mode and interlock mode
● Support countdown timer and scheduled timer
● Support share control
Electrical Characteristics
● Voltage range: 90-250v AC(50/60Hz) /5-24v DC
● Max current: 10A/chnl
● Max Power: 2200W/chnl
● Wireless Frequency: 2.4Ghz
● Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F)
● Operating Humidity: 5%-90%RH, Non-condensing
● Max soldering temperature: 260℃
Wiring Instruction
L-In: Input LIVE
To enter into WiFi pairing state, you should press and hold one of CH1, CH2, CH3, CH4 buttons until the
WiFi LED blinks 3 times repeatedly.
L1,L2,L3,L4 port respectively connects to LIVE of CH1, CH2, CH3, CH4.
You can randomly connects to any of the five N port and 5 GND port for your devices.
WIFI Characteristics
• 802.11 b/g/n
• Built-in 10-bit high accuracy ADC
• Built-in TCP/IP protocol stack
• Built-in TR switch, balun, LNA, power amplifier and matching network
• Built-in PLL, voltage regulator and power supply management components, 802.11b mode +20 dBm
output power
• A-MPDU&A-MSDU aggregation and 0.4μs guard interval
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• Support antenna diversity
• Built-in ultra-low power 32-bit MCU, also work as application processor
• SDIO 2.0、SPI、UART
• STBC、1x1 MIMO、2x1 MIMO
• WiFi @ 2.4 GHz, supports WPA / WPA2 safe mode
• 2ms, connect and transfer data packets
• Other parameters are as follows
Category
Parameters
Description
Wireless Parameter
Wireless standard
802.11 b/g/n
Frequency range
2.4G-25G(2400M-2483.5M)
Tx Power
802.11b: 20dBm
802.11g: 17dBm
802.11n: 14dBm
Rx Sensitivity
802.11b: (11Mbps)-91dbm
802.11g: (54Mbps)-75dbm
802.11n: (MCS7)-72dbm
Software
Parameter
Wireless network
types
Station/softAP/softAP+station
Security
WPA/WPA2
Encryption
WEP/TKIP/AES
Firmware Upgrade
UART Download / OTA (via
network)
Network Protocols
IPv4、TCP/UDP/HTTP/FTP
User configuration
AT+ instruction set
Specification
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Sonoff 4CH PRO data JAN 2018
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PCBA Size:122.2*87.2*1.2mm
Product Size: (L)14.5*(W)9.5*(H)4cm
Hardware
Working Mode
Sonoff 4CH Pro supports to work 3 modes: self-locking mode, inching mode and interlock mode.
1. In self-locking mode, users can turn on/off the 4 connected devices independently. For example, if
users turn on CH1, connected device keeps on. If users turn off CH2, connected device keeps off.
2. In inching mode, users can turn on the connected devices for 0.25-4s. For example, users can turn
on CH1 connected device for 1s, then auto-off.
3. In interlock mode, users can turn on 1 device every time, and turn off other devices at the same time.
For example, if users have turned on CH2, then when they turn on CH3, CH2 will be auto-turned off at
the same time.
We will introduce how to switch among the 3 modes below:
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Sonoff 4CH PRO data JAN 2018
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CAUTION: Please cut off power supply before switching S5, S6, K5, K6. Whether you use DC or
AC input, make sure you have unplugged the power plug every time!!!
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S6 is interlock /inching&self-locking switch: Toggle to the right(0), it enters into interlock mode; Toggle to
the left(1), it enters into inching &self-locking mode.
K5 is inching/self-locking switches: From left to right, there are 1, 2, 3, 4, correspondingly for channel 1
(CH1), channel 2 (CH2), channel 3 (CH3), channel 4 (CH4). Toggle the switch down (0), the
corresponding channel enters into inching mode; Toggle the switch up (1), the corresponding channel
enters into self-lockin mode.
● Please note that if S6 is toggled to the right(0), your 4CH Pro is in interlock mode, it's invalid
to set K5.
K6 is used to set the delay time for inching mode. From left to right there are 1, 2, 3, 4, correspondingly
for CH1, CH2, CH3, CH4. Toggle all switches down (0000), the inching time will delay for 4s; Toggle all
switches up (1111), the inching time will delay for 0.25s.
Please refer to the delay time setting list below:
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S5 is 433MHz code clearing button: To clear the 433MHz coding, please press and hold it until the 4
LEDs lit up green and off.
Pair with 433MHz RF Remote: Quickly press twice one of the switches below, then press one of the
ABCD buttons on your RF Remote. If paired successfully, the button will lit up in red, and the
corresponding status LED will blink in green for 4 times. You can press the button to turn on or turn off
the related channel.
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