WiFi Module 5BK

The WiFi Module 5BK is a compact wireless communication module designed for IoT applications, embedded systems, and smart device connectivity requiring IEEE 802.11b/g/n standard compliance. Electronics engineers, IoT developers, and embedded systems integrators rely on this module to add reliable WiFi connectivity to microcontroller-based projects without complex RF design expertise. This module solves the critical challenge of establishing secure, low-power wireless communication in resource-constrained environments while maintaining industrial-grade reliability and ease of integration.

Product Overview

The WiFi Module 5BK operates on the 2.4 GHz ISM band with integrated TCP/IP stack support, enabling direct communication with routers and cloud platforms. The module features an on-board antenna with optimized impedance matching, reducing external component requirements and design complexity. It supports both station and soft access point modes, allowing flexible network configuration for diverse deployment scenarios. The integrated power management circuitry ensures efficient operation with typical current consumption of 80mA during active transmission and sub-10mA standby modes, making it suitable for battery-powered applications.

This model stands out through its AT command interface compatibility, enabling seamless integration with Arduino, Raspberry Pi, and other popular development platforms using standard UART communication. The module includes built-in security features such as WPA/WPA2 encryption support and SSL/TLS certificate handling for secure data transmission. Operating temperature range from 0 to 40 degrees Celsius ensures reliable performance in controlled indoor environments typical of commercial and industrial installations. The compact form factor with standard 2mm pitch pin headers facilitates rapid prototyping and integration into custom PCB designs.

Key Specifications

Specification	Details
Product Type	WiFi Module with Integrated Antenna
Brand	Original Manufacturer
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp
Wireless Standard	IEEE 802.11 b/g/n
Frequency Band	2.4 GHz ISM
Data Rate	Up to 150 Mbps
Interface	UART with AT Command Set
Operating Voltage	3.0V to 3.6V DC
Current Consumption	Active: 80mA, Standby: Less than 10mA

Key Features

• Integrated TCP/IP Stack: Full protocol support eliminates the need for external network processing, reducing firmware complexity and development time
• Dual-Mode Operation: Supports both station mode for client connections and soft access point mode for creating independent networks
• WPA/WPA2 Security: Enterprise-grade encryption ensures data confidentiality and protection against unauthorized access in sensitive applications
• Low Power Consumption: Intelligent power management with sub-10mA standby current extends battery life in portable IoT devices
• AT Command Interface: Standard command set ensures compatibility with existing embedded projects and simplifies firmware development
• Compact Form Factor: Miniaturized design with standard 2mm pitch pins enables integration into space-constrained PCB layouts

Applications and Use Cases

• Smart Home Automation: Integration into WiFi-enabled switches, thermostats, and lighting controllers for centralized home management systems
• Industrial IoT Monitoring: Real-time sensor data transmission from manufacturing equipment, environmental monitors, and asset tracking systems
• Wearable Device Connectivity: Wireless communication in fitness trackers, health monitors, and personal devices requiring low-power operation
• Educational Prototyping: Rapid development platform for students and hobbyists learning embedded systems and IoT concepts with Arduino and similar platforms
• Remote Data Logging: Wireless connectivity for weather stations, agricultural sensors, and environmental monitoring stations in field deployments

How to Use

The WiFi Module 5BK connects to your microcontroller via UART interface using standard RX/TX pins at 115200 baud rate by default. Begin by supplying 3.3V regulated power to the module's VCC pin while ensuring adequate decoupling capacitance near the power input to maintain stable voltage during transmission bursts. Connect the module's TX pin to your microcontroller's RX pin and RX pin to the microcontroller's TX pin, ensuring proper voltage level matching if your controller operates at 5V using a voltage divider or level shifter circuit.

After hardware connection, initialize serial communication and send AT commands to configure network parameters. Use commands such as AT+CWMODE to set operation mode, AT+CWJAP to connect to WiFi networks with SSID and password, and AT+CIFSR to retrieve the assigned IP address. Once connected, establish socket connections using AT+CIPSTART for TCP/UDP communication with remote servers. For SSL/TLS secured connections, configure certificates using AT+CIPSSLSIZE before initiating encrypted sessions. Test connectivity by pinging remote hosts using AT+PING and monitor signal strength with AT+CWLAP for network scanning operations.

Frequently Asked Questions

What is the maximum WiFi transmission range of the 5BK module?

The WiFi Module 5BK achieves typical indoor range of 50-100 meters in open space with line-of-sight conditions and standard 802.11b/g/n access points. Actual range depends on environmental factors including wall materials, interference from other 2.4 GHz devices, and antenna orientation. In industrial environments with concrete walls and metal structures, effective range may reduce to 20-30 meters. For extended coverage, implement mesh networking or use external antenna connectors if available on your specific variant.

Can the 5BK module handle simultaneous TCP and UDP connections?

Yes, the WiFi Module 5BK supports multiple simultaneous socket connections through its integrated TCP/IP stack. You can establish up to 5 concurrent connections using different socket IDs managed through AT commands. This enables scenarios such as simultaneous data upload to cloud servers while receiving configuration commands from mobile applications. Each connection maintains independent state and buffer management, though total bandwidth is limited by the 150 Mbps theoretical maximum and actual RF conditions.

What power supply specifications are required for stable operation?

The module requires a clean 3.3V regulated power supply capable of delivering minimum 500mA peak current during transmission bursts. Use a dedicated voltage regulator with low dropout characteristics rather than deriving 3.3V from microcontroller pins. Install a 10-100 microfarad electrolytic capacitor in parallel with the power pins and add 0.1 microfarad ceramic capacitors as close as possible to the module's power pins. Poor power supply design causes intermittent disconnections, failed AT command responses, and unstable WiFi connections.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy WiFi Module 5BK Online in India

Purchase the WiFi Module 5BK online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on WiFi Module 5BK with fast shipping and expert support.

Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.