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Arduino Uno R3

Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.

Price BDT 399
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Sonoff 4CH R2 Smart Switch Wifi
  • Sonoff 4CH R2 Smart Switch Wifi
  • Sonoff 4CH R2 Smart Switch Wifi

Sonoff 4CH R2 Smart Switch Wifi

Sonoff 4CH R2 Smart Switch Wifi

  • Power Supply: 90V~250V AC(50/60Hz)
  • Max. Current: 10A/gang
  • Max. Power:2200W/gang, 2200W/Total
  • Wireless Standard: 802.11 b/g/n
  • Security Mechanism: WPA-PSK/WPA2-PSK
  • Enclosure Material: Fire-retardant ABS V0
BDT 1,999
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Description
  • Remote ON/OFF–Turn electrical devices on/off from anywhere
  • App Support –Free iOS and Android mobile App eWeLink
  • Independent control–Control each gang separately
  • DIN Rail Mounted– Great for industrial control
  • Sync Status–Real-time device status provided to App
  • Share Control–Control your smart home together with your family
  • Timing–Set scheduled/countdown timers to turn on/off at specified time
  • Scene–Turn on/off a gang of devices with one tap
  • Smart Scene–Triggered on/off by temp, hum or other environmental conditions from sensor
  • Compatibility –Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nest
 
 
 

Overview

Sonoff 4CH & 4CH R2 are 4-gang switches with din rail mounting. Sonoff 4CH (R2) 4 gang light switch supports to connect and control 4 electrical appliances, which can be turned on/off separately by the buttons or iOS/Android App EweLink. Besides, with the multi gang switch, you can check real-time devices status for each device on App. Owning a Sonoff 4CH (R2) multi gang switch means you have 4 Sonoff basic WiFi switches integrate together. 

The enclosure is din rail mount supported! DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish.

Sonoff 4CH (R2) 4 gang WiFi light switch belongs to Sonoff family, definitely, it bears all the functions basic Sonoff has. In EweLink, you can remote turn on/off from anywhere at any time, set single/repeat/countdown timing schedules to turn on/off at a specified time, share to others so that they can control together.

Sonoff 4CH (R2) is hacker-friendly that you can flash your firmware without difficulty. Read ESP8285 datasheet.

Works With Amazon Alexa

You can ask Alexa to turn on/off Sonoff 4CH (R2).

Standard voice control commands phrases (if you just say the device name, Alexa will turn on/off all the 4 gangs immediately):

Alexa, turn on {deviceName}
Alexa, turn off {deviceName}

Alexa, turn on {deviceName} {gangName}
Alexa, turn off {deviceName} {gangName}

The default names for the 4 gangs are: outlet 1, outlet 2, outlet 3, outlet 4. You can change the name if you like.

Explanation: if the device name of your Sonoff 4CH (R2) is "My Switch", the gang name is "Outlet 1", then you can control with "Alexa, turn on My Switch Outlet 1".

For detailed tutorial, please click here.

Features

  • Turn on/off 4 home appliances remotely
  • Device status's synchronously display
  • Scheduled/Countdown timers
  • Share control
  • Supports setting power on status
  • Works with Amazon Echo, Echo Dot, Amazon Tap
  • Works with Google Home, Google Nest
  • Works with IFTTT

Specification

  • Power Supply: 90V~250V AC(50/60Hz)
  • Max. Current: 10A/gang
  • Max. Power2200W/gang, 2200W/Total
  • Wireless Standard: 802.11 b/g/n
  • Security Mechanism: WPA-PSK/WPA2-PSK
  • Enclosure Material: Fire-retardant ABS V0
  • Gang:  4
  • Dimensions: 145*90*40 (mm)
  • Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F)
  • Operating Humidity: 5%-90%RH, Non-condensing
  • 4CH Certification: CE/FCC/RoHS (Download)
  • 4CH R2 Certification: CE/RoHS (Download), FCC(Download)
Product Details
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