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STM32F103C8T6 ARM Minimum System Development Board
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STM32F103C8T6 ARM Minimum System Development Board

370.00৳  Add to cart
  • Model: STM32F103C8T6
  • Core: ARM Cortex-M3 32-bit CPU
  • Clock Speed: 72MHz
  • Memory: 64KB Flash, 20KB SRAM
  • Power Supply: 2.0V - 3.6V
  • Onboard Mini USB for Power & Communication
  • Ideal for STM32 Development & Prototyping
  • Available at: Circuit City BD
Female to Female 20cm Jumper Wires (20 Pcs)
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Female to Female 20cm Jumper Wires (20 Pcs)

55.00৳  Add to cart
  • Connector Type: Female to Female
  • Quantity: 20 Wires (Rainbow Colors)
  • Length: 20cm (8 inches) per wire
  • Pin Header Compatibility: 2.54mm (0.1") Standard
  • Flexible & Pre-Crimped for Quick Connections
  • Perfect for Breadboards, PCBs & DIY Electronics
  • Available at: Circuit City BD
TP4056 Type-C USB 5V 1A Lithium Battery Charger Module with Protection
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TP4056 Type-C USB 5V 1A Lithium Battery Charger Module with Protection

40.00৳  Add to cart
  • Input Interface: Type-C
  • Charging Mode: Linear charging
  • Current Protection: Yes
  • Charge Current: 1A (Adjustable)
  • Charge Precision: 1.5%
  • Input Voltage: 4.5V-5.5V
  • Full Charge Voltage: 4.2V
  • Available at: Circuit City BD
Male to Female 20cm Jumper Wires(20 Pcs)
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Male to Female 20cm Jumper Wires(20 Pcs)

55.00৳  Add to cart
  • Connector Type: Male-to-Female
  • Length: 20cm (each wire)
  • Quantity: 20 wires (Rainbow colors)
  • Ideal for: Breadboards, PCBs, DIY electronics
  • Flexible & easy-to-use wiring solution
  • Available at: Circuit City BD
Male to Male 20cm Jumper Wires(20 Pcs)
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Male to Male 20cm Jumper Wires(20 Pcs)

55.00৳  Add to cart
  • Connector Type: Male-to-Male
  • Length: 20cm (each wire)
  • Quantity: 20 wires (Rainbow colors)
  • Ideal for: Breadboards, PCBs, DIY electronics
  • Easy to use & organize
  • Available at: Circuit City BD
18650 Battery Holder – 3 Cell
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18650 Battery Holder – 3 Cell

75.00৳  Add to cart
  • Compatible Battery: 3 x 18650 Li-ion Batteries
  • Output Voltage: 11.1V (Series Connection)
  • Material: High-Quality Plastic
  • Wire Length: 15cm
  • Easy to Install & Use
  • Available at: Circuit City BD
18650 Battery Holder – 2 Cell
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18650 Battery Holder – 2 Cell

50.00৳  Add to cart
  • Compatible Battery: 2 x 18650 Li-ion Batteries
  • Output Voltage: 7.2V (Series Connection)
  • Material: High-Quality Plastic
  • Wire Length: 15cm
  • Easy to Install & Use
  • Available at: Circuit City BD
18650 Battery Holder – 1 Cell
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18650 Battery Holder – 1 Cell

40.00৳  Add to cart
  • Compatible Battery: Standard 18650 Li-ion Battery
  • Output Voltage: 3.7V
  • Material: High-Quality Plastic
  • Wire Length: 15cm
  • Easy to Install & Use
  • Available at: Circuit City BD
18650 2600mAh Original (Grade A) Rechargeable Li-ion Battery
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18650 2600mAh Original (Grade A) Rechargeable Li-ion Battery

320.00৳  Add to cart
  • Battery Type: Hybrid 18650 Li-ion
  • Capacity: 2600mAh (9.62Wh)
  • Voltage: 3.7V (Unprotected)
  • Max Discharge Rate: 10A
  • Rechargeable: Yes (Standard Charging Time: 4 Hours)
  • Ideal for: Power Banks, Laptops, Flashlights, and DIY Projects
  • Available at: Circuit City BD
18650 2000mAh Original (Grade A) Rechargeable Li-ion Battery
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18650 2000mAh Original (Grade A) Rechargeable Li-ion Battery

280.00৳  Add to cart
  • 3.7V 18650 rechargeable lithium-ion battery
  • 2000mAh capacity for reliable power supply
  • Ideal for laptops, flashlights, and other electronic devices
  • No PCB protection; suitable for DIY projects
  • Available at Circuit City BD
Water Level Depth Detection Sensor Module
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Water Level Depth Detection Sensor Module

50.00৳  Add to cart
  • Operating Voltage: 3V - 5V DC
  • Sensor Type: Analog Output
  • Detection Area: 40mm x 16mm
  • Features: Low power consumption, easy water level measurement, high sensitivity
  • Application: Water tank monitoring, rain detection, liquid level measurement
  • Availability: Available at Circuit City BD
KY-026 The Flame Sensor Module Digital & Analog Output
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KY-026 The Flame Sensor Module Digital & Analog Output

85.00৳  Add to cart
  • Operating Voltage: 3.3V - 5V DC
  • Detection Range: 760nm - 1100nm flame spectrum, up to 100cm
  • Features: Digital & analog output, adjustable sensitivity, LM393 comparator for stable readings
  • Application: Fire detection, firefighting robots, security systems
  • Availability: Available at Circuit City BD
Flame Sensor Fire Detection Module
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Flame Sensor Fire Detection Module

70.00৳  Add to cart
  • Operating Voltage: 3.3V - 5V DC
  • Detection Range: 760nm - 1100nm flame spectrum
  • Features: High sensitivity, 60° detection angle, onboard signal output, adjustable sensitivity
  • Application: Fire detection, security systems, flame monitoring
  • Availability: Available at 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
MQ-135 Gas Sensor
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MQ-135 Gas Sensor

170.00৳  Add to cart
  • Gas Detection: Detects Ammonia, Sulfide, Benzene, Alcohol, Smoke, and Harmful Gases
  • Sensitivity: Adjustable sensitivity with fast response and recovery
  • Output: Analog voltage output (0-5V) with a signal output indicator
  • Application: Suitable for air quality monitoring, gas leak detection, and industrial safety
  • Availability: Available at 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
KY-037 Microphone Sound Sensor Detection Module
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KY-037 Microphone Sound Sensor Detection Module

90.00৳  Add to cart
  • Product Name: KY-037 Microphone Sound Sensor Detection Module
  • Main Chip: LM393, Electret Condenser Microphone
  • Operating Voltage: 3.3V - 5V
  • Induction Distance: 0.5 Meter
  • Output Signal: Single Channel, Low-Level Output
  • Size: 43mm x 17mm x 8mm
  • Weight: 3g
  • Applications: Sound detection, voice-activated systems, security alarms
  • Availability: Available at Circuit City BD
US-015 Ultrasonic Module Distance Measuring Transducer Sensor
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US-015 Ultrasonic Module Distance Measuring Transducer Sensor

250.00৳  Add to cart
  • Product Name: US-015 Ultrasonic Module Distance Measuring Transducer Sensor
  • Operating Voltage: 5V
  • Measuring Range: 2cm to 400cm
  • Accuracy: ±0.3cm
  • Applications: Distance measurement, automation, robotics, liquid level detection
  • Availability: Available at Circuit City BD
MQ-2 Flammable Gas & Smoke Sensor
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MQ-2 Flammable Gas & Smoke Sensor

150.00৳  Add to cart
  • Product Name: MQ-2 Flammable Gas & Smoke Sensor
  • Operating Voltage: 5V
  • Preheat Duration: 20 seconds
  • Output Voltage: 0-5V (Analog & Digital)
  • Applications: Gas leakage detection, industrial safety, home security
  • Availability: Available at Circuit City BD
MAX30102 Heart Rate and Pulse Sensor Module
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MAX30102 Heart Rate and Pulse Sensor Module

380.00৳  Add to cart
  • Product Name: MAX30102 Heart Rate and Pulse Sensor Module
  • LED Wavelength: Red: 660nm, Infrared: 880nm
  • Power Supply Voltage: 3.3V~5V
  • Communication Interface: I2C
  • Applications: Wearables, medical monitoring, fitness devices
  • Availability: Available at Circuit City BD
Heart Rate Pulse Sensor Module
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Heart Rate Pulse Sensor Module

300.00৳  Add to cart
  • Product Name: Heart Rate Pulse Sensor Module
  • Power: 3-5V
  • Diameter: 16mm
  • Magnification: 330
  • LED Wavelength: 609nm
  • Availability: Available at Circuit City BD
AS608 Optical Fingerprint Sensor
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AS608 Optical Fingerprint Sensor

1,950.00৳  Add to cart
  • Product Name: AS608 Optical Fingerprint Sensor
  • Resolution: 500dpi
  • Supply Voltage: 3.3V
  • Fingerprint Image Entry Time: <1.0 seconds
  • Communication Interface: USB/UART
  • Availability: Available at Circuit City BD

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