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1 Channel 5V Relay Module
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1 Channel 5V Relay Module

99.00৳  Add to cart

  • Relay Type: 1-Channel 5V Relay

  • Operating Voltage: 3V - 5V DC

  • Switching Capacity: AC 250V/10A, DC 30V/10A

  • Trigger Method: High-Level & Low-Level Selectable

  • Microcontroller Compatibility: Arduino, AVR, PIC, ARM, DSP

  • Availability: Order now from Circuit City BD!

ESP-8266 (CH340) NodeMCU Lua V3
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ESP-8266 (CH340) NodeMCU Lua V3

390.00৳  Add to cart
  • Product Name: ESP-8266 (CH340) NodeMCU Lua V3
  • Wi-Fi Module: Built-in ESP8266
  • Power Supply: 4.5V ~ 9V (USB-powered)
  • Communication: UART/GPIO interface
  • Flash Size: 4MB
  • Availability: Available at Circuit City BD
ESP-32 NodeMCU 30Pin
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ESP-32 NodeMCU 30Pin

410.00৳  Add to cart
  • ESP-32 NodeMCU 30Pin
  • Dual-core WiFi + Bluetooth microcontroller
  • Supports UART, GPIO, ADC, DAC, PWM, I2C, and I2S interfaces
  • Built-in 32Mbit flash memory for enhanced performance
  • Available now at Circuit City BD
HW-411A LM2596 DC-DC Step Down Adjustable Power Supply Module 3A Max Buck Converter
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HW-411A LM2596 DC-DC Step Down Adjustable Power Supply Module 3A Max Buck Converter

100.00৳  Add to cart
4 Channel 5V Relay Module
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4 Channel 5V Relay Module

300.00৳  Add to cart

  • Channels: 4

  • Trigger Voltage: 5V DC

  • Switching Voltage: 250V AC / 30V DC @ 10A

  • Microcontroller Compatibility: Arduino, Raspberry Pi, PIC, AVR, ARM, etc.

  • High/Low-Level Trigger Modes

  • Availability: Order now from Circuit City BD!

Active Speaker Buzzer Module for Arduino 5V
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Active Speaker Buzzer Module for Arduino 5V

60.00৳  Add to cart
  • Operating Voltage: 1.5V - 15V DC
  • Tone Generation Range: 1.5 kHz - 2.5 kHz
  • Current Consumption: Less than 25mA
  • Application: Alarms, Timers, Notifications, Sound Alerts
  • Availability: Available at Circuit City BD
TDS Meter Probe Water Quality Monitoring V1 Sensor Module for Arduino
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TDS Meter Probe Water Quality Monitoring V1 Sensor Module for Arduino

1,650.00৳  Add to cart

  • TDS Water Quality Sensor | Arduino Compatible | V1 Module

  • Measures 0–1000 ppm with ±10% Accuracy

  • Waterproof Probe for Long-Term Monitoring

  • Analog Output 0–2.3V, Wide Voltage Input 3.3V–5.5V

  • Available Now at Circuit City BD

HC-05 Bluetooth Module for Arduino
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HC-05 Bluetooth Module for Arduino

350.00৳  Add to cart

  • Wireless Serial Bluetooth Module for Arduino & Microcontrollers

  • Bluetooth Specification: V2.0 + EDR

  • Frequency: 2.4GHz ISM Band

  • Modulation: GFSK (Gaussian Frequency Shift Keying)

  • Operating Range: Up to 10 meters

  • Supports Master & Slave Mode

  • Low Power Consumption

  • Availability: Order now from Circuit City BD!

2 Channel 5V Relay Module
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2 Channel 5V Relay Module

150.00৳  Add to cart

  • Dual-Channel 5V Relay Module

  • Low-Level Trigger Relay

  • Trigger Voltage: 3.3V – 5V

  • Switching Capacity: 250V AC @ 10A, 30V DC @ 10A

  • Opto-Isolated for High Reliability

  • Built-in Back EMF Protection

  • Two LED Indicators for Relay Status

  • Availability: Order now from Circuit City BD

HX1838 NEC Coding IR Remote Control Sensor Module
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HX1838 NEC Coding IR Remote Control Sensor Module

380.00৳  Add to cart

  • IR Remote Control & Sensor Module

  • Operating Voltage: 2.7V - 5.5V

  • Transmission Distance: Up to 8m

  • NEC Encoding Format

  • Internal PCM Filter & EMI Shielding

  • Battery (CR2025) Not Included

  • Availability: Order now from Circuit City BD!

I2C LCD Adapter Module
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I2C LCD Adapter Module

90.00৳  Add to cart

  • Interface: I2C (PCF8574 Chip)

  • Compatible LCDs: 16×2 & 20×4 Character Displays

  • Power Supply: 5V DC

  • Adjustable Contrast & Backlight Control

  • Up to 8 Modules on a Single I2C Bus

  • Availability: Order now from Circuit City BD!

DHT22/AM2302 Digital Temperature and Humidity Sensor Module
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DHT22/AM2302 Digital Temperature and Humidity Sensor Module

450.00৳  Add to cart
  • Measurement Range: Temperature -40°C to 80°C, Humidity 0% to 99.9% RH
  • Accuracy: Temperature ±0.5°C, Humidity ±2% RH
  • Features: High precision, capacitive type, calibrated digital signal, long-term stability
  • Application: Suitable for weather monitoring, HVAC systems, industrial applications
  • Availability: Available at Circuit City BD
ESP-32 NodeMCU 30Pin Type-C
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ESP-32 NodeMCU 30Pin Type-C

450.00৳  Add to cart
  • Product Name: ESP-32 NodeMCU 30Pin Type-C
  • Wi-Fi Module: ESP-WROOM-32s with IEEE 802.11 b/g/n
  • Built-in Flash: 32Mbit
  • Interfaces: UART, GPIO, ADC, DAC, SDIO, PWM, I2C, I2S
  • Logic Level: 3.3V
  • Power Supply: 5V
  • Availability: Available at Circuit City BD
BMP280 Air Pressure Sensor Module
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BMP280 Air Pressure Sensor Module

300.00৳  Add to cart

  • Compact & High-Precision Barometric Sensor

  • Measures Atmospheric Pressure & Temperature

  • Supports I2C & SPI Communication

  • Operating Voltage: 1.71V to 3.6V (Typical: 3.3V)

  • Pressure Range: 300 hPa to 1100 hPa

  • Perfect for Altitude Measurement & Weather Forecasting

  • Availability: Order now from Circuit City BD!

Sonoff Basic R2 – WiFi Wireless Smart Switch
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Sonoff Basic R2 – WiFi Wireless Smart Switch

720.00৳  Add to cart
  • Product Name: Sonoff Basic R2 - WiFi Wireless Smart Switch
  • Smart Home Integration: Works with Amazon Alexa, Google Assistant, and Nest
  • Remote Control: Turn appliances on/off via the eWeLink app
  • Timer Functions: Supports countdown, scheduled, and loop timers
  • Connectivity: 802.11 b/g/n Wi-Fi, WPA-PSK/WPA2-PSK security
  • Power Rating: 90-250V AC, 10A max current, 2200W max load
  • Applications: Home automation, smart lighting, appliance control
  • Availability: Available at Circuit City BD
ESP8266 (ESP-01) Serial WiFi Wireless Transceiver Module
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ESP8266 (ESP-01) Serial WiFi Wireless Transceiver Module

170.00৳  Add to cart
  • Product Name: ESP8266 (ESP-01) Serial WiFi Wireless Transceiver Module
  • Wi-Fi Standard: 802.11 b/g/n
  • Flash Memory: 1MB
  • Processor: 32-bit CPU with TCP/IP stack
  • Power Efficiency: Standby power <1.0mW (DTIM3)
  • Interfaces: UART, SPI, SDIO 1.1/2.0
  • Applications: IoT, home automation, wireless sensor networks
  • Availability: Available at Circuit City BD
SIM800L GPRS GSM Breakout Module
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SIM800L GPRS GSM Breakout Module

370.00৳  Add to cart
  • Product Name: SIM800L GPRS GSM Breakout Module
  • Operating Voltage: 3.7V - 4.2V
  • Peak Current: 2A
  • Network Support: Quad-band GSM/GPRS (850/900/1800/1900 MHz)
  • Connectivity: SMS, Call, GPRS, TCP/IP
  • Antenna: Includes PCB antenna and wire antenna
  • Applications: IoT, GSM-based automation, remote control, security systems
  • Availability: Available at Circuit City BD
TTP223B Digital Touch Sensor
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TTP223B Digital Touch Sensor

80.00৳  Add to cart
  • Product Name: TTP223B Digital Touch Sensor
  • Operating Voltage: 2.0 to 5.5 VDC
  • Response Time: 60ms (touch mode), 220ms (low power mode)
  • Output: Digital high/low signal
  • Design: Compact 24x24mm module
  • Compatibility: Arduino & Raspberry Pi compatible.
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Force Sensor Square 38.1mm
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Force Sensor Square 38.1mm

1,620.00৳  Add to cart
  • Product Name: Force Sensor Square 38.1mm
  • Sensing Area: 38.1mm square sensing area
  • Pressure Range: 100g to 10kg force measurement
  • Design: Ultra-thin 0.45mm design
  • Durability: Up to 10 million actuations
  • Compatibility: Arduino & Raspberry Pi compatible
Force Sensitive Resistor 0.5″
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Force Sensitive Resistor 0.5″

890.00৳  Add to cart
  • Product Name: Force Sensitive Resistor 0.5"
  • Sensing Area: 0.5" circular sensing area
  • Pressure Range: 20g to 6kg force measurement
  • Design: Ultra-thin 0.4mm design
  • Response Time: Fast response time <10ms
  • Compatibility: Arduino & Raspberry Pi compatible
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ESP-8266 NodeMCU OLED Module
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ESP-8266 NodeMCU OLED Module

1,250.00৳  Add to cart
  • Product Name: ESP-8266 NodeMCU OLED Module
  • Display: Integrated 0.96″ OLED
  • Power Supply: 5V via Micro USB
  • Compatibility: Arduino & NodeMCU (Lua for ESP8266)
  • Connection: Micro USB
  • Availability: Available at Circuit City BD
ESP-8266 NodeMCU Lua V3
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ESP-8266 NodeMCU Lua V3

650.00৳  Add to cart
  • Product Name: ESP-8266 NodeMCU Lua V3
  • Wi-Fi Module: Built-in ESP-12E
  • Power Supply: 5V (via micro USB)
  • Communication: GPIO, PWM, I2C, ADC, UART, SPI
  • Flash Size: 4MB
  • Availability: Available at Circuit City BD
ESP-32 Camera Module OV2640
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ESP-32 Camera Module OV2640

850.00৳  Add to cart
  • Product Name: ESP-32 Camera Module OV2640
  • Wi-Fi Module: ESP32-S with 802.11 b/g/n and Bluetooth 4.2 LE
  • Camera Module: OV2640 (2MP)
  • Storage: Micro SD card slot (Supports up to 4GB)
  • Interfaces: UART, SPI, I2C, PWM, ADC, DAC
  • Availability: Available at Circuit City BD
ESP-32 (CH340C Version) NodeMCU 38 Pin
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ESP-32 (CH340C Version) NodeMCU 38 Pin

580.00৳  Add to cart
  • ESP-32 (CH340C Version) NodeMCU 38 Pin
  • Built-in WiFi + Bluetooth connectivity
  • USB CH340 chipset for easy programming
  • Supports multiple peripheral interfaces
  • Available now at Circuit City BD

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