The SIM800C GSM GPRS Development Module is perfect for integrating GSM and GPRS capabilities into your projects. Supporting a wide voltage range and various control levels, this module is versatile and easy to use.

• Easy Interface: Simple integration with the WeMos D1 mini for SD card operations.
• SPI Communication: Uses the SPI interface for communication between the WeMos D1 mini and the SD card.
• Compact Design: Designed specifically for the WeMos D1 mini, making it small and efficient for space-constrained projects.
• Wide Compatibility: Compatible with various microSD cards for data storage and retrieval.

• Wide Input Voltage Range: Supports DC voltage from 0V to 25V.
• High Voltage Detection Precision: Detects voltages between 0.02445V and 25V.
• Analog Voltage Resolution: Provides an analog voltage resolution of 0.00489V.
• Easy to Connect: Connects easily with Arduino AD pins via a 3P connector.

• Onboard TTP229 Capacitive 16-Key Touch Sensing IC

• Supports 16 capacitive touch buttons for seamless touch control

• Onboard power indicator for status monitoring

• Adjustable output modes, key response, and power settings

• Dual Voltage Compatibility: Works with both 3.3V and 5.0V power supply, offering flexibility in different setups.
• Signal Compatibility: Supports both 3.3V and 5.0V signal levels, making it adaptable to a variety of systems.
• Industrial Design: Uses imported chips with industrial-grade design, offering superior anti-interference ability.
• Wide Operating Temperature: Can operate in harsh environments with a temperature range from -40°C to +85°C.

• Wide voltage input range from 6V to 35V
• Quick Charge 3.0 support for fast and efficient charging
• Built-in MOS tube for anti-reverse connection protection (better than traditional diodes, preventing overheating and damage)
• Blue LED output indicator and Red LED quick charge status indicator

• Contactless Data Transmission: No battery required, energy is supplied by the reader.
• Anti-collision Technology: Multiple cards can be read at the same time without interference.
• Printable Surface: Can be customized for branding or identification purposes.

• Compatible with ESP-12E development kit (NodeMCU).
• Extend output ports for ESP-12 including SPI, UART, GPIO, AI, and 3.3V power interface.
• Directly drive 2-way motors with ease.
• Power switch for convenient operation.

• High-resolution 8x2 character display
• Wide operating temperature range: -20°C to +70°C
• Backlight for easy viewing in low light conditions
• Standard 5V operating voltage

• Magnetic encoder induction angle sensor
• Wide operating temperature range: -40°C to 125°C
• Low power consumption with 3.3V DC power supply
• Compact size, ideal for various applications

• Operating Voltage: 12V DC
• LED Indicators: Two separate LEDs for On/Off status indication of the relay
• Triggering Input Voltage: 3.3V – 5V
• Back EMF Protection: Protects against back electromotive force

Introducing the GSM / GPRS / GPS Tracker. Ideal for personal, vehicle, and asset tracking, this versatile device offers:

• Quad-band GSM/GPRS 850/900/1800/1900MHz
• High GPS accuracy of at least 3.3m
• Applications: Emergency (SOS), geo-fence boundary crossings, low battery alerts, scheduled route planning

• ULN2003A Motor Driver Chip: Reliable and efficient stepper motor control.
• DC 5-12V Power Supply: Wide voltage range for flexible applications.
• 4-Way Signal Indicator: Indicates the signal direction for easy monitoring.
• Step Angle: 5.625 x 1 / 64, providing precise motion control.

• Operating voltage: 3.5-5V DC
• Current rating: 20mA
• Speaker power: 8ohm/3W
• Supported sampling rate (kHz): 8/11.025/12/16/22.05/24/32/44.1/48

Discover the MQ-3 Gas Sensor Module, a reliable component for detecting alcohol levels in various applications in Bangladesh. Operating at 5VDC, it features both digital and analog outputs, making it ideal for integrating with microcontrollers and DIY projects.

• Non-contact gesture detection with proximity sensing capabilities

• Measures distance range from 10 to 20 cm (4-8 inches)

• I2C interface for easy communication with microcontrollers

• Low power consumption, ideal for battery-operated devices