1.Product Overview
The RHA-BT101M is a cutting-edge Bluetooth 5.1 module designed for low-power and long-range wireless communication. Supporting HID and GATT profiles, this compact module integrates seamlessly with smart home devices, wireless car keys, remote controls, and more. It offers automatic pairing, reconnection, and flexible configuration via AT commands. With a working range of up to 100 meters and ultra-low power consumption, the RHA-BT101M provides a reliable, efficient solution for IoT and wireless control applications.

2.Key Selling Points
- BLE 5.1 with Master-Slave Mode: Supports seamless master-slave switching, multi-connection capability (up to 9 devices), ensuring stable and flexible wireless communication.
- Long Work Distance: Enhanced Bluetooth transmission with Class 2 power level and 100m+ range, perfect for automotive and smart home applications.
- Low Power Consumption: Deep sleep mode with ultra-low power draw (1.1uA) ensures long battery life for IoT and handheld devices.
- Simple AT Command Operation: User-friendly configuration via AT commands for quick setup, including baud rate adjustments and pairing options.
- Versatile Application Scenarios: Ideal for Bluetooth car keys, smart home locks, HID remote controls, and IoT BLE sensors in various environments.

3.Main Functions
- Bluetooth 5.1 Support: Long-range transmission, master-slave mode, HID profile and compatible with Android/iOS system.
- Ultra-Low Power: Energy-efficient deep sleep mode ideal for battery-powered devices.
- Simple AT Command Setup: Easy customization and control using simple AT commands.


4.Usage Scenarios
Designed for Seamless Integration in Smart Devices



5.Technical Specifications
Parameter |
Details |
Module Model |
RHA-BT101M |
Bluetooth Version |
BLE 5.1 |
Bluetooth Protocol |
GATT |
Size |
27mm x 13mm x 2mm |
Interface |
UART |
Antenna Type |
Built-in PCB onboard antenna |
Operating Voltage |
3.0V~3.6V |
Transmit Power |
+8 dBm (max) |
Receive Sensitivity |
-97dBm @0.1%BER |
Baud Rate |
Default 115200bps, supports 1200bps to 921.6Kbps |
Communication Mode |
AT command mode, transparent transmission mode |

6.Why Choose Us
