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IR Obstacle Sensor
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IR Obstacle Sensor

70.00৳  Add to cart

  • Infrared Obstacle Detection Sensor

  • Detection Distance: 2 ~ 30cm

  • Detection Angle: 35°

  • LM393 Comparator for Stable Output

  • Works with 3.6V to 5V Power Supply

  • Easy Mounting with 3mm Screw Holes

  • Availability: Order now from Circuit City BD!

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!

IR Receiver Shielded
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IR Receiver Shielded

15.00৳  Add to cart

  • Supply Voltage: 3.0V - 5.0V DC

  • Receiver Frequency: 38 KHz

  • Low Power Consumption & High Immunity

  • Internal Filter for PCM Frequency

  • TTL & CMOS Compatibility

  • 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!

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!

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
Digital Load Cell Weight Sensor 5kg
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Digital Load Cell Weight Sensor 5kg

380.00৳  Add to cart
  • Product Name: Digital Load Cell Weight Sensor 5kg
  • Dimensions: 75 x 13 x 13 mm
  • Weighing Range: 0-5 kg
  • Material: Aluminum alloy
  • Output: 1.0 ± 0.1mV/V
  • Compatibility: HX711 & Arduino compatible
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Flex Sensor 2.2″
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Flex Sensor 2.2″

1,850.00৳  Add to cart
  • Flex Length: 5.6 cm
  • Total Length: 7 cm (2.2")
  • Height: 0.43 mm (0.017")
  • Resistance Variation: 30K-70KΩ ±30%
  • Measuring Range: 25KΩ - 60KΩ
  • Measurement Accuracy: ±0.039%
  • Life Cycle: >1 million bends
  • Power Rating: 0.5W
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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
ESP-32 (WROOM) NodeMCU 38 Pin
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ESP-32 (WROOM) NodeMCU 38 Pin

690.00৳  Add to cart
  • 2.4GHz Dual-Mode WiFi + Bluetooth Development Board
  • Ultra-Low power consumption with IDE compatibility
  • High-performance microcontroller for IoT applications
  • Available now at Circuit City BD

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