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XY-MB021F Bluetooth Relay Module Single Channel Automatic Activation DC 5-12V Wireless Control Stable Performance Configurable Settings AT Command Support — image 1
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XY-MB021F Bluetooth Relay Module Single Channel Automatic Activation DC 5-12V Wireless Control Stable Performance Configurable Settings AT Command Support

AI Summary
Relay Module for everyday users

The XY-MB021F Bluetooth Relay Module Single Channel Automatic Activation DC 5-12V Wireless Control Stable Performance Configurable Settings AT Command Support by Pricio is a mid-range relay module designed for everyday users.

✓ wireless convenience
₹2,000
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1CH
Total: ₹2,000
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 4 Aug – 18 Aug
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Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: bg-2043314Category: Relay Module

About This Product

The XY-MB021F Bluetooth Relay Module Single Channel Automatic Activation DC 5-12V Wireless Control Stable Performance Configurable Settings AT Command Support by Pricio is a mid-range relay module designed for everyday users. It delivers reliable performance at an accessible price.

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

Specifications:
Model: XY-MB021F
Input Voltage: DC 5-12V
Output Interface: Single-channel relay
Communication Method: Wireless Bluetooth (mobile phone proximity based)
Configurable Methods: APP/mini program/serial port
Supported Commands: AT command modification for relay signal values, modes, and timing
Interfaces: Preset UART port for command sending/receiving
Material: Embedded with multiple voltage stabilizers

Features:
1. Automatic Activation without Additional Apps
Supports automatic activation when the mobile phone comes into proximity, eliminating the need for additional app-based system pairing.
2. Multiple Configuration Methods
Adjustable settings through APP, mini-programs, or serial port options, providing flexibility and convenience across different usage scenarios.
3. AT Command Customization
Allows users to customize relay signal values, operational modes, and duration using AT commands for tailored functionality.
4. Wide Voltage Compatibility
Designed to accept DC input voltage between 5V and 12V, making it suitable for varied power supply setups.
5. Stable Performance with Enhanced Components
Equipped with advanced voltage stabilizers and quality components to ensure consistent output and reliable operation.

Package Included:
1 x Single-channel Bluetooth Proximity Switch Relay Module
1 x 2.4p Single Pin Jumper


Product Safety Information
Product Safety Information
Manufacturer
Shenzhen Yuner Yipu Trading Co., Ltd
Address
East 1087, Building 4, SEG Science and Technology Park, No. 3012 Huaqiang North Road, Huaqiang North Street, Futian District, Shenzhen, Guangdong, CN
European agent
VISHTEC ltd
Email
compliance@vish-tec.com
Address
3 rd floor office 5, Plovdiv 2 Liuben Karavelov bul, 4002 Bulgaria
UK agent
CET Product Service Ltd.
Email
info@cetproduct.com
Address
Beacon House Stokenchurch Business Park, Ibstone Rd, Stokenchurch, High Wycombe, Buckinghamshire, UK

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.
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