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IoT (11)

Quadcopter (2)

Components (1)

Development Boards (32)

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Micro Controller (27)

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- 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
- 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
- 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
- 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
- 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
- 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
- Cable Length: 12cm (Approx.)
- Connector Type: 9V Battery Snap with DC Barrel Jack (2.1mm x 5.5mm)
- Material: High-Quality, Environment-Friendly Design
- Application: Ideal for Arduino, Microcontrollers, and DIY Projects
- Availability: Available at 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
- 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
- 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
- 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: 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
- Product Name: ESP-8266 NodeMCU OLED Module
- Display: Integrated 0.96″ OLED
- Power Supply: 5V via Micro USB
- Compatibility: Arduino & NodeMCU (Lua for ESP8266)
- Connection: Micro USB
- Availability: Available at Circuit City BD
- Product Name: ESP-8266 (CH340) NodeMCU Lua V3
- Wi-Fi Module: Built-in ESP8266
- Power Supply: 4.5V ~ 9V (USB-powered)
- Communication: UART/GPIO interface
- Flash Size: 4MB
- Availability: Available at Circuit City BD
- Product Name: ESP-8266 NodeMCU Lua V3
- Wi-Fi Module: Built-in ESP-12E
- Power Supply: 5V (via micro USB)
- Communication: GPIO, PWM, I2C, ADC, UART, SPI
- Flash Size: 4MB
- Availability: Available at Circuit City BD
- Product Name: ESP-32 Camera Module OV2640
- Wi-Fi Module: ESP32-S with 802.11 b/g/n and Bluetooth 4.2 LE
- Camera Module: OV2640 (2MP)
- Storage: Micro SD card slot (Supports up to 4GB)
- Interfaces: UART, SPI, I2C, PWM, ADC, DAC
- Availability: Available at Circuit City BD
- Product Name: ESP-32 NodeMCU 30Pin Type-C
- Wi-Fi Module: ESP-WROOM-32s with IEEE 802.11 b/g/n
- Built-in Flash: 32Mbit
- Interfaces: UART, GPIO, ADC, DAC, SDIO, PWM, I2C, I2S
- Logic Level: 3.3V
- Power Supply: 5V
- Availability: Available at Circuit City BD
- ESP-32 (CH340C Version) NodeMCU 38 Pin
- Built-in WiFi + Bluetooth connectivity
- USB CH340 chipset for easy programming
- Supports multiple peripheral interfaces
- Available now at Circuit City BD
- 2.4GHz Dual-Mode WiFi + Bluetooth Development Board
- Ultra-Low power consumption with IDE compatibility
- High-performance microcontroller for IoT applications
- Available now at Circuit City BD