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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!

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!

Arduino Uno R3 SMD
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Arduino Uno R3 SMD

570.00৳  Add to cart
  • Microcontroller: ATmega328 (SMD) with CH340G interface.
  • Operating Voltage: Works at 5V.
  • Input Voltage (Recommended): Accepts 7–12V as input.
  • Input Voltage (Limit): Operates within 6–20V safely.
  • Digital I/O Pins: Includes 14 pins, 6 of which support PWM output.
  • Analog Input Pins: Features 6 analog input pins.
  • Flash Memory: 32 KB (0.5 KB used by bootloader).
  • Clock Speed: Runs at 16 MHz.
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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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Arduino Leonardo R3
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Arduino Leonardo R3

790.00৳  Add to cart
  • Microcontroller: ATmega32U4
  • Operating Voltage: 5V
  • Input Voltage (Recommended): 7-12V
  • Digital I/O Pins: 20
  • PWM Channels: 7
  • Analog Input Channels: 12
  • SRAM: 2.5 KB
  • EEPROM: 1 KB
  • Clock Speed: 16 MHz
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Arduino Due
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Arduino Due

3,240.00৳  Add to cart
  • Microcontroller: AT91SAM3X8E.
  • Operating Voltage: 3.3V.
  • Input Voltage (Recommended): 7-12V.
  • Input Voltage (Limits): 6-16V.
  • Digital I/O Pins: 54 (12 pins support PWM output).
  • Analog Input Pins: 12.
  • Analog Output Pins: 2 (DAC).
  • Clock Speed: 84 MHz.
  • SRAM: 96 KB (64 KB + 32 KB).
  • Flash Memory: 512 KB.
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ARDUINO PRO MICRO
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ARDUINO PRO MICRO

870.00৳  Add to cart
  • Microcontroller: ATmega32U4, 5V/16MHz.
  • Interface: Micro USB programming.
  • I/O Pins: 12 digital, 5 PWM.
  • Analog: 4 ADC inputs, 10-bit.
  • Memory: 32 KB Flash, 2.5 KB SRAM, 1 KB EEPROM.
  • Clock: 16 MHz speed.
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Arduino Pro Mini 328 5V/16Mhz
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Arduino Pro Mini 328 5V/16Mhz

680.00৳  Add to cart
  • Microcontroller: ATmega328
  • CPU Speed: 16 MHz.
  • Voltage: 5V operating.
  • Pins: 14 digital (6 PWM), 6 analog.
  • Interfaces: UART, I2C, SPI.
  • Memory: 32 KB Flash, 2 KB SRAM, 1 KB EEPROM.
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MEGA 2560 PRO Mini (EMBED) CH340G ATmega2560-16AU
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MEGA 2560 PRO Mini (EMBED) CH340G ATmega2560-16AU

1,990.00৳  Add to cart

 MEGA 2560 PRO Mini (EMBED) CH340G ATmega2560-16AU

  • Compatibility: Supports Mega 2560 and ATmega2560-based projects.
  • Power Supply: Powered via Micro USB connector.
  • Voltage Output: 5V (800mA) and 3.3V (800mA).
  • Ideal Use: Excellent for ATmega2560 development projects.
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Arduino Mega 2560 CH340
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Arduino Mega 2560 CH340

1,345.00৳  Add to cart

  • USB Driver: CH340
  • Operating Voltage: 5V
  • Recommended Input Voltage: 7-12V
  • Input Voltage Range: 6-20V
  • Digital I/O Pins: 54 (15 with PWM output)
  • Analog Input Pins: 16
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Arduino Mega 2560 R3
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Arduino Mega 2560 R3

1,890.00৳  Add to cart
  • Microcontroller: ATmega2560.
  • Operating Voltage: 6–12V.
  • Digital I/O Pins: 54 (15 PWM).
  • Analog Input Pins: 16.
  • Flash Memory: 256 KB.
  • Clock Speed: 16 MHz.
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Arduino Nano R3
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Arduino Nano R3

580.00৳  Add to cart
  • Microcontroller: ATmega328P
  • Flash Memory: 32KB
  • RAM: 2KB
  • Digital I/O Pins: 14 (6 PWM)
  • Analog Input Pins: 8 (A0–A7)
  • Operating Voltage: 5V
  • USB Driver: FT232
  • Power Supply: USB Mini, 7-12V DC
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Arduino Nano
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Arduino Nano

410.00৳  Add to cart
  • USB Driver: CH340 for seamless USB communication.
  • Microcontroller: ATmega328P (8-bit AVR family).
  • Operating Voltage: 5V (logic level).
  • Analog Input Pins: 8 (A0 ~ A7).
  • Digital I/O Pins: 14 (including 6 PWM outputs).
  • Flash Memory: 32KB (includes bootloader).
  • Reset: Manual reset switch available.
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Arduino Uno R3
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Arduino Uno R3

1,050.00৳  Add to cart

  • Microcontroller: ATmega328
  • Operating Voltage: 5V
  • Input Voltage (recommended): 7-12V
  • Digital I/O Pins: 14 (6 with PWM output)
  • Analog Input Pins: 6
  • DC Current per I/O Pin: 20 mA
  • DC Current for 3.3V Pin: 50 mA
  • SRAM: 2 KB
  • EEPROM: 1 KB
  • Clock Speed: 16 MHz
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