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Reference: RBD-1354
Length: 8 inches/20 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Reference: 0245
Choose your desire Resistor value from below:
Reference: RBD-0351
Contactless transmission of data and supply energy (no battery needed) Operating distance: Up to 100mm (depending on antenna geometry) RoboticsBD Operating frequency: 13.56MHz Data transfer: 106 kbit/s Data integrity: 16 Bit CRC, parity, bit coding bit counting Anticollision Typical ticketing transaction: <100 ms ( including backup management)...
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
Reference: RBD-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
Reference: RBD-0094
The Arduino Uno R3 High-Quality Edition Arduino UNO in Bangladesh Micro-controller : ATmega328. Operating Voltage : 5V. Input Voltage (recommended) : 7-12V. Digital I/O Pins : 14 (of which 6 provide PWM output). Analog Input Pins : 6. The Arduino Uno R3 High-Quality Edition embodies superior craftsmanship and meticulous attention to detail, resulting in...
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Free Ship Over 5000 BDT
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No Warranty
No Replacement
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 Wi-Fi switches integrate together.
The enclosure is din rail mount supported! A 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 Wi-Fi 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. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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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
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| General Specification | |
| 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 |
| Gang: | 4 |
| Dimensions: | 145*90*40 (mm) |
| Operating Temperature(recommended): | 0ºC-40ºC(32°F-104°F) |
| Operating Humidity: | 5%-90%RH, Non-condensing |
| Shipment Weight | 0.320 kg |
| Shipment Dimensions | 15 × 10 × 5 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x Sonoff 4CH R2 Smart Switch Wi-Fi.
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The latest price of Sonoff 4CH R2 Smart Switch Wifi in Bangladesh is BDT 1,599 You can buy the Sonoff 4CH R2 Smart Switch Wifi at best price from our RoboticsBD or visit RoboticsBD Office.
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Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
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Product Images are shown for illustrative purposes only and may differ from the actual product. |
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Reference: RBD-0814
The 2021 Model is Sonoff Basic R2 Support remotely turn on or off added devices. Support Max 8 timers tasks for each added device. Works with AMAZON ALEXA Works with GOOGLE ASSISTANT Also, Work with NEST Support numerous Wi-Fi smart switches one smartphone.
Reference: RBD-0960
Voltage range: 100-240V AC Color: White Remote Control Monitor Energy Usage Historical Energy Consumption Overload Protection Measure Power Usage for a Period Sync Status Timing Function Share Control Smart Scene APP Supported Check out New Product Sonoff POWR320D Elite Smart Power Meter Switch
Reference: RBD-1015
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
Reference: RBD-1016
Power Supply: 90-250V AC Max Current: 16A(2 gang),10A(1 gang) Max Power: 3500W(2 gang) / 2200W(1 gang) Product Dimensions: 114*52*32mm Color: White Frequency: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK
Reference: RBD-1017
Input: AC 100-240V 50/60 Hz 5A Output: Light: AC 100-240V 50/60 Hz 3A, Fan: AC 100-240 V 50/60 Hz 2A Max Rf Frequency: 433.92 MHz Turn on/off ceiling fan and light using your voice Support the RM433 RF to control devices (RM433 RF included) Share the device and manage it with your family together Display the real-time device status on the app Check out...
Reference: RBD-1176
Power supply: 90V~250V AC(50/60Hz) Max. Current: 10A Remote turn on/off connected device. Support checking real-time device status on APP. Support scheduled/countdown/loop timing tasks. Setting scene to turn on/off a group of devices in the same account. Setting scene to trigger on/off the other device by status changes
Reference: RBD-1345
Remotely control the ceiling fan and light on your phone Turn on/off ceiling fan and light using your voice Support the RM433 RF to control devices (RM433 RF included) Share the device and manage it with your family together Display the real-time device status on the app The fan speed is optional from the high, medium and low speed (only for RM433 RF)...
Reference: RBD-1418
Model: 4CHR3 Input Voltage: 110-240V AC 16A MAX Output Voltage: 110-240V AC 10A/Gang (16A total) WiFi: IEEE 802.11b/g/n 2.4GHz Color: White Material: PC Dimension: 145 x 90 x 34 mm
Reference: RBD-1525
Can control up to 3 device 220V Model : T3EU3C Remotely control devices through a phone Turn on/off devices with Amazon Alexa and Google Assistant Touch control buttons for convenient operation Set a particular time to turn on/off devices Customize one or groups of SONOFF devices to turn on/off with a simple tap Allow you to manage devices when there is...
Reference: RBD-1526
Can control up to 2 device 220V Model : T3EU2C Remotely control devices through a phone Turn on/off devices with Amazon Alexa and Google Assistant Touch control buttons for convenient operation Set a particular time to turn on/off devices Customize one or groups of SONOFF devices to turn on/off with a simple tap Allow you to manage devices when there is...
Reference: RBD-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
Reference: RBD-0215
AC 100~240v or 12V DC input The cables come with a fitted fuse. Microprocessor controlled Li-ion, LiPo, and LiFe capable Input voltage monitoring. (Protects car batteries at the field) Battery break-in and cycling feature Data storage (Store up to 5 packs in memory) Internal resistance checker to see pack health Delta-peak sensitivity Individual cell...
Reference: RBD-1025
Overload protection on the input and output No latch-up when the common mode range is exceeded Applications: Audio, Communications & Networking, Signal Processing Current Stock: 741CN
Reference: RBD-0763
Cell Quantity: 2 Battery type: AA Storage temperature: 25ºC Max Operate temperature: 80ºC
Reference: RBD-2383
Model number: TEC1-12710 Operating Voltage: 12V Maximum Voltage- Umax (V) : 15V Maximum Current- Imax (A) : 10A Maximum Power : 120 W Power Cord: 25 cm.
Reference: RBD-1381
Forward voltage 1.55V Reverse current 100mA Capacitance 25 pF
Reference: RBD-0438
ENC28J60 Ethernet Module HanRun HR911105A Ethernet port 5V supply voltage 100% Genuine ENC28J60 Chipset, compatible with Arduino etc. 25MHz Crystal. Standard HanRun HR911105A Ethernet Interface. RoboticsBD
Reference: RBD-1685
5050 12V RGB Led Strip light 4pin LED Headers For PC, Computer Case RGB Strip Mainboard Control Panel RGB-Header (+12V,G,R,B) 5x0.5m Waterproof
Reference: RBD-0737
Power supply:5VDC/160mA Switching Voltage (VAC):240@2A Isolation: Phototriac
Reference: RBD-1363
Dimension: 14.5×6 cm Copper Thickness 1-4 OZ Board Thickness 1.1 mm Board color: Brown
Reference: RBD-0995
Diameter: 5mm No. of Pins: 2 Type of Mounting: PCB Through Hole Maximum Operating Temperature: +800°C (Approx.) Dark resistance:1-20 Mohm
Reference: RBD-2031
Frequency: 22.1184 MHz Tolerance: 30% Operating Temperature Range: -10°C to +60°C Storage Temperature Range: -20°C to +70°C
Reference: RBD-1512
LDR 10 mm Light Depending Resistor Low-cost sensor device Wide spectral response Use in fire alarms, smoke alarms, control street light Low cost. Ambient Temperature Range. Wide spectral response.
Reference: RBD-0732
Excellent material It is an environmental 9V battery buckle The Cable Length: 12cm Approx. Convenient for connecting a battery to your application. Save power and protect the environment Good electrical conductivity and comfortable sense of touch
Reference: RBD-2236
Plate Diameter: 20mm Element Diameter: 14mm Plate Thickness: .42mm Lead Length: ~50mm Plate Material: Brass Resonant Frequency (kHz): 6.3 +/- .6kHz
Reference: RBD-0566
Fully compliant USB 2.0 standard, backward compatible with USB1.1 Support System: Windows XP, Vista, Windows 7, Linux, MacOS, and WinCE5.0 drive Baud Rate Range: 75bps – 115200bps, up to 6Mbps Supports Plug, Play and hot-swap ( USB side) Better than using CH341D chip or similar chip to support the laptop USB port. Communication distance up to 1.2KM
Reference: RBD-2307
This speaker is a great addition to any audio project where you need 8 ohm impedance and 3W or less of power. We particularly like this speaker as it is small and enclosed for good audio volume and quality. It has a handy JST 2PH input cable to add audio to your displays and other projects (this connector is part of the JST-PH series which is ~2.0mm...
Reference: RBD-0751
1pcs 12V DC 5pin Relay MODEL: 12VDC WEIGHT: 50.00g DIMENSIONS: 1.80cm x 1.50cm x 1.60cm
Reference: RBD-1299
Size: 5mm Color: White Head Shape: Round Lens Appearance: Transparent
Reference: RBD-1041
PCB Size: 60 x 20 x 13.5 (LxWxH)mm. Color: red, yellow, green LED Size: 10mm x 7. Brightness: Normal brightness. Voltage: 5V. Interface: common cathode red yellow green control.
Reference: RBD-0226
Brand: SparkFun Electronics
Camera Module - pcDuino V3 (2MP)
Reference: RBD-1583
Light Source Type: LED Indoor/Outdoor Usage: Outdoor Color: Rgb (Red, Green, Blue) Material: Copper Number of Light Sources: 300 Voltage: 12 Volts Wattage: 48.00 Water Resistance Level: Waterproof
Reference: RBD-1944
Cell Quantity: 5 Battery type: AA Storage temperature: 25ºC Max Operate temperature: 80ºC
Reference: RBD-1538
Can offer 360 degrees of illumination Energy-saving, long lifetime Wire diameter: 2mm EL light length: 3M Lifetime: >12,000 hours Color: Green
Reference: RBD-1738
Operating Voltage : 1.5 ~ 15V DC Working Current: Less than 25mA Tone Generation Range : 1.5 ~ 2.5kHz Dimensions (LxWxH): 26 x 15 x 11 mm
Reference: RBD-0395
Input voltage range: 4V-38V DC Output voltage range: 1.25V-36V DC adjustable. Output current: 0-5A. Output power: 75W. High efficiency up to 96% The built-in thermal shutdown function Built-in current limit function In-Built output short protection function. RoboticsBD
Reference: RBD-1170
Made of high-quality material Suitable for cutting Aluminum and Copper Cuts wire up to a diameter of 3mm Fully Polished Well finished cutting edges
Reference: RBD-1176
Power supply: 90V~250V AC(50/60Hz) Max. Current: 10A Remote turn on/off connected device. Support checking real-time device status on APP. Support scheduled/countdown/loop timing tasks. Setting scene to turn on/off a group of devices in the same account. Setting scene to trigger on/off the other device by status changes
Reference: RBD-1145
Version 1.4 HDMI to micro HDMI cable Supports 480i ,480p, 720p, 1080i, 1080p, 1440p resolution Cable Length: 1.5m Color: Black Application: Mulitimedia
Reference: RBD-0960
Voltage range: 100-240V AC Color: White Remote Control Monitor Energy Usage Historical Energy Consumption Overload Protection Measure Power Usage for a Period Sync Status Timing Function Share Control Smart Scene APP Supported Check out New Product Sonoff POWR320D Elite Smart Power Meter Switch
Reference: RBD-0409
No. of Channel: 4 Trigger Voltage: 5VDC Triode drive, increasing relay coil High impedance controller pin Pull-down circuit for the avoidance of malfunction Power supply indicator and Control indicator lamp Power supply and relay instructions, lit, the disconnect is off; The input signal, signal, common Terminal and start conducting; RoboticsBD Note:...
Reference: RBD-1017
Input: AC 100-240V 50/60 Hz 5A Output: Light: AC 100-240V 50/60 Hz 3A, Fan: AC 100-240 V 50/60 Hz 2A Max Rf Frequency: 433.92 MHz Turn on/off ceiling fan and light using your voice Support the RM433 RF to control devices (RM433 RF included) Share the device and manage it with your family together Display the real-time device status on the app Check out...
Reference: RBD-0814
The 2021 Model is Sonoff Basic R2 Support remotely turn on or off added devices. Support Max 8 timers tasks for each added device. Works with AMAZON ALEXA Works with GOOGLE ASSISTANT Also, Work with NEST Support numerous Wi-Fi smart switches one smartphone.
Reference: RBD-0740
Fully HAT compatible 40pin GPIO (Unpopulated) Stream and watch Hi-definition video output at 1080P 512MB RAM and Micro SD Slot for OS Tiny Current Draw ~ 140mA at 5V! Mini-HDMI for Video Micro-USB OTG Host for Data and Power Micro-CSI Camera Port On-Board Bluetooth and WiFi. RoboticsBD
