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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)
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!
- 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
- 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
- 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: 7x20mm Coreless Motor with 55mm Propeller Pair
- Rated Voltage: 3.7V
- Current: 0.1A
- Max Speed: 50000 RPM
- Shaft Diameter: 1.0 mm
- Propeller Length: 55mm
- Availability: Available at Circuit City BD
- Product Name: RS2205 2300KV Racing BLDC Motor CW/CCW
- KV Rating: 2300KV
- Power Supply: 3-4S LiPO
- Max Thrust: 1024g
- Shaft Diameter: M5
- Propeller Compatibility: HQ 5045 BN
- Availability: Available at Circuit City BD
- Product Name: Emax XA2212-980kv Outrunner Brushless Motor
- KV Rating: 980KV
- Power Supply: 2-3S LiPO
- Max Thrust: 880g
- Shaft Diameter: 3mm
- Propeller Compatibility: 9-10 inch
- Availability: Available at Circuit City BD
- A2212 1400KV Brushless Outrunner Motor
- High-Speed & Efficient Performance
- Lightweight & Durable Metal Case
- Ideal for Drones, Quadcopters, and RC Applications
- Available at Circuit City BD