Bluetooth 5.1 BLE HID Module Support Digital Key Solution - MY-BT401


MY-BT401 is a low energy Bluetooth module that supports Bluetooth 5.1 and profiles such as HID, GATT, ATT, HID, and GAP. The module can be controlled using UART communication and AT commands for setting module name, baud rate, and other parameters. The default firmware supports BLE Master-Slave and HID slave modes.

With a working range of up to 80m, MY-BT401 is suitable for use in various Bluetooth low energy devices such as digital keys, OBD, smart homes, IoT BLE sensor networks, and HID remote controls.

MY-BT401 Parameter:

Bluetooth Model MY-BT401
Bluetooth Version Bluetooth 5.1 Low Energy
Profiles GATT(Central/Peripheral)
Dimension 27mm*13mm*2.2mm
Interface PIO, SPI, UART
Work temperature -40ºC to +80ºC
Transmit power Maximum 8 dBm
Antenna Built-in PCB Antenna (Default), supports external antenna (Optional)
Highlights Long Range, UART Pass-through, Low Cost


MY-BT401 Features:

  • Bluetooth 5.1/ 5.0 /4.2/4.1/4.0
  • Cheapest Price Bluetooth Module
  • Master-Slave firmware
  • Multi-Connection
  • Bluetooth Low Energy Protocols
  • Extensible Feature: HID
  • Programmable Baud-Rate (Up to 921600bps)
  • Customized Firmware
  • Over-The-Air (OTA) Firmware Updates


MY-BT401 Application:


Download Product Specification:

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