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Electronics Module (7)

IoT (11)

Quadcopter (2)

Basic Components (8)

Development Boards (30)

Battery & Charger (17)

Micro Controller (26)

Motor (13)

Sensors (30)

Cables/Wires/Connectors (6)
Operating Voltage: 3V – 6V DC
RPM: 2000
Shaft Diameter: 2mm
Shaft Length: 10mm
Weight: 15g
Availability: Order now from Circuit City BD!
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!
- 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
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
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!
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!
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!
- 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
- 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
- Product Name: Heart Rate Pulse Sensor Module
- Power: 3-5V
- Diameter: 16mm
- Magnification: 330
- LED Wavelength: 609nm
- Availability: Available at Circuit City BD
- 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
- 16GA Micro Metal DC Gear Motor
- 12V, 800 RPM, High Torque
- Lightweight & Durable
- Ideal for Robotics & Automation
- Available at Circuit City BD
- N20 Micro Metal DC Gear Motor
- 12V, 300 RPM, High Torque
- Lightweight & Durable
- Ideal for Robotics & Automation
- Available at Circuit City BD
- Product Name: 37GB Gear Motor 500RPM 12V
- Voltage: 12V DC
- Speed: 500 RPM
- Torque: High torque with low current consumption
- Build Quality: Metal gears, durable construction
- Product Name: 25GA Gear Motor 300RPM 12V
- Voltage: 12V DC
- Speed: 300 RPM
- Torque: High torque with low current consumption
- Build Quality: Metal gears, durable construction
- Availability: Available at Circuit City BD