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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)
- Nominal Voltage: 9V
- Built Quality: Leakproof Metal Jacket
- Environment-Friendly: 0% Mercury and Cadmium
- Connector Type: Corrosion-Free Press Stud Terminal
- Application: DIY Projects, Electronics, Household Devices
- Availability: Available at Circuit City BD
- 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
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!
- Material: Hard Leather, High-Quality Build
- Wire Length: 5cm, Open-Wire End for Easy Connection
- Polarity Protection: Prevents Reverse Connection & Short Circuit
- Application: Ideal for Arduino, DIY Projects, and Battery-Powered Circuits
- Availability: Available at 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
- Operating Voltage: 3.3V - 5V DC
- Output: Analog (A0) & Digital (D0) Outputs
- Adjustable Sensitivity: Potentiometer for light intensity control
- Application: Light detection, brightness control, smart lighting
- Availability: Available at Circuit City BD
- Product Name: FC-04 Microphone Sound Sensor 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
- Product Name: HC-SR04 Ultrasonic Distance Sonar Sensor
- Operating Voltage: 5V
- Measuring Range: 2cm to 400cm
- Accuracy: ±3mm
- Applications: Distance measurement, obstacle detection, automation projects
- Availability: Available at Circuit City BD
- Product Name: HC-SR501 PIR Infrared Motion Sensor
- Operating Voltage: 4.5V-20V DC
- Detection Distance: 3 to 7m (Adjustable)
- Detection Angle: <140°
- Current Consumption: <60uA
- 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!
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!
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!
- Brand: iMAX
- Power: 80W max output
- Battery Compatibility: Li-ion, LiPo, LiFe, NiCd, NiMH, Pb
- Input Voltage: 11–18V DC (Power Adapter Required, Not Included)
- Features: Microprocessor Controlled, Individual Cell Balancing.
- Ideal for: RC Hobbyists, Drone Pilots, Robotics, DIY Electronics
- Available at: Circuit City BD
- Brand: iMAX B6-AC
- Power: 80W Discharge, 10W Charge
- Battery Compatibility: Li-ion, LiPo, LiFe, NiMH, NiCd, Pb
- Input Voltage: 100~240V AC / 11~18V DC
- Available at: Circuit City BD
- Brand: Wild Scorpion
- Capacity: 2200mAh
- Voltage: 11.1V (3S)
- Discharge Rate: 30C for High-Performance Output
- Max Charging Rate: 5C for Fast Charging
- Connector Type: XT for Charging, JST for Discharge
- Size: 105 x 35 x 24mm
- Weight: ~183g
- Ideal for: RC Drones, FPV Systems, UAVs, RC Cars, and High-Power Applications
- Available at: Circuit City BD
- Brand: Wild Scorpion
- Capacity: 1500mAh
- Voltage: 11.1V (3S)
- Discharge Rate: 25C for High-Performance Output
- Max Charging Rate: 5C Fast Charging Support
- Connector Type: XT for Charging, JST for Discharge
- Size: 68 x 35 x 23.5mm
- Weight: ~112g
- Ideal for: RC Drones, FPV Systems, UAVs, and High-Performance Models
- Available at: Circuit City BD
- Brand: Wild Scorpion
- Capacity: 1100mAh
- Voltage: 11.1V (3S)
- Discharge Rate: 25C for High-Performance Output
- Max Charging Rate: 5C Fast Charging Support
- Connector Type: XT for Charging, JST for Discharge
- Size: 58.5 x 29.3 x 20mm
- Weight: ~94g
- Ideal for: RC Drones, FPV Systems, UAVs, and High-Performance Models
- Available at: Circuit City BD
- Brand: LiPower
- Capacity: 3200mAh
- Voltage: 11.1V (3S)
- Discharge Rate: High-Performance Output
- Max Charging Rate: Fast Charging Support
- Connector Type: XT-60 for Charging, JST for Discharge
- Size: 138 x 42 x 21mm
- Weight: ~255g
- Ideal for: RC Cars, Drones, UAVs, FPV Systems, and Power Tools
- Available at: Circuit City BD
- Brand: LiPower
- Capacity: 2200mAh
- Voltage: 11.1V (3S)
- Discharge Rate: 35C
- Max Charging Rate: 5C
- Connector Type: XT-60 for Charging, JST for Discharge
- Size: 118 x 34 x 28mm
- Weight: ~185g
- Ideal for: RC Cars, Drones, UAVs, FPV Systems, and Power Tools
- Available at: Circuit City BD
- Brand: LiPower
- Capacity: 1550mAh
- Voltage: 11.1V (3S)
- Discharge Rate: 35C
- Max Charging Rate: 5C
- Connector Type: XT for Charging, JST for Discharge
- Size: 75 x 35 x 24mm
- Weight: ~120g
- Perfect for: RC Cars, Drones, UAVs, FPV Systems, and Power Tools
- Available at: Circuit City BD
- 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
- 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