Close up of HC-05 6-Pin Bluetooth Module with exposed circuitry

HC-05 6-Pin Bluetooth Module, No Button

SKU AA095

$10.49 USD Shipping & tax calculated at checkout
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HC-05 6-pin Bluetooth UART serial transceiver adds wireless data links to Arduino, Raspberry Pi, ESP32, and STM32 for robotics, home automation, telemetry, and prototyping; no-button version.

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Overview

Product Overview

The HC-05 Bluetooth module is a 6-pin serial wireless transceiver that adds cable-free UART Bluetooth communication to microcontroller and single-board computer projects, letting Arduino, Raspberry Pi, ESP32, and STM32 systems exchange data with compatible Bluetooth hosts for robotics, home automation, telemetry, remote control, and prototyping. Based on the popular HC-05 platform, it is widely used as a transparent serial link for sending sensor readings, commands, and debug data, and this no-button version suits builds where setup is handled through the module pins and AT command access rather than an onboard key switch.

Questions & answers

Frequently asked questions

Yes, it provides a UART serial Bluetooth link and is intended for Arduino, Raspberry Pi, ESP32, and STM32 projects. The host needs accessible serial pins and software support for sending and receiving data over that serial connection.
This ShillehTek version comes with pre-soldered headers, so it can be connected with jumper wires or a breadboard without header soldering. You still need to wire power, ground, TX, and RX and configure your project software.
It communicates over UART serial using TX and RX, plus power, ground, and additional module pins on the 6-pin header. Cross-connect TX to the host RX and RX to the host TX, and verify voltage and logic compatibility.
Yes. It works as a transparent serial link for sending robot commands from a compatible Bluetooth host and receiving telemetry or sensor readings back from the controller, removing the need for a USB cable during normal operation.
No-button means this version does not include an onboard key button for entering module modes. It suits builds where setup is handled through the module pins and AT command access instead of pushbutton-assisted mode changes.

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What's included

Features & Specs

Bluetooth UART Link Adds cable-free UART Bluetooth communication for wireless serial data exchange.

HC-05 Platform Based on the popular HC-05 module for transparent serial Bluetooth links.

6-Pin Module Uses a 6-pin layout for serial connection and control through the module pins.

No Button Setup This no-button version is intended for AT command access and setup through the pins instead of an onboard key switch.

Controller Compatibility Compatible with Arduino, Raspberry Pi, ESP32, and STM32 projects that use serial communication.

Data Transfer Uses Suitable for sending sensor readings, commands, and debug data to compatible Bluetooth hosts.

Project Applications Used in robotics, home automation, telemetry, remote control, and prototyping builds.

Reference

Documents

Full Product Manual HC-05 6-Pin Bluetooth Module, No Button | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet - HC-05 Bluetooth Module

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