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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
- 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
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!
- 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: 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
- Product Name: TTP223B Digital Touch Sensor
- Operating Voltage: 2.0 to 5.5 VDC
- Response Time: 60ms (touch mode), 220ms (low power mode)
- Output: Digital high/low signal
- Design: Compact 24x24mm module
- Compatibility: Arduino & Raspberry Pi compatible.
- Product Name: Force Sensor Square 38.1mm
- Sensing Area: 38.1mm square sensing area
- Pressure Range: 100g to 10kg force measurement
- Design: Ultra-thin 0.45mm design
- Durability: Up to 10 million actuations
- Compatibility: Arduino & Raspberry Pi compatible
- Product Name: Force Sensitive Resistor 0.5"
- Sensing Area: 0.5" circular sensing area
- Pressure Range: 20g to 6kg force measurement
- Design: Ultra-thin 0.4mm design
- Response Time: Fast response time <10ms
- Compatibility: Arduino & Raspberry Pi compatible