---
product_id: 335021507
title: "HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module"
brand: "newzoll"
price: "€ 23.04"
currency: EUR
in_stock: true
reviews_count: 5
category: "Newzoll"
url: https://www.desertcart.fi/products/335021507-hc-05-wireless-bluetooth-receiver-rf-transceiver-module-serial-port
store_origin: FI
region: Finland
---

# Compact 37.5x16.5x4mm size 10m open area wireless range 3.6V-6V input voltage with onboard 3.3V regulator HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module

**Brand:** newzoll
**Price:** € 23.04
**Availability:** ✅ In Stock

## Summary

> 📶 Elevate your IoT game with wireless freedom and microcontroller mastery!

## Quick Answers

- **What is this?** HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module by newzoll
- **How much does it cost?** € 23.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/335021507-hc-05-wireless-bluetooth-receiver-rf-transceiver-module-serial-port)

## Best For

- newzoll enthusiasts

## Why This Product

- Trusted newzoll brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Mode Flexibility:** Switch effortlessly between transmitter and receiver modes via simple AT commands.
- • **Power-Efficient Design:** Low current consumption—only 10mA when paired, maximizing device battery life.
- • **Plug & Play Compatibility:** Works smoothly with Arduino, AVR, PIC, ARM, MSP430, and 5V microcontrollers out of the box.
- • **Real-Time Connection Feedback:** LED indicators keep you instantly informed of Bluetooth status and pairing mode.
- • **Seamless Serial Communication:** Direct microcontroller connection without extra chips for hassle-free integration.

## Overview

The HC-05 Wireless Bluetooth Module is a compact, power-efficient RF transceiver designed for seamless serial communication. Operating at 3.6V-6V with an onboard 3.3V regulator, it supports a 10-meter wireless range and direct connection to various microcontrollers without additional interface chips. Its dual transmitter/receiver modes and real-time LED status indicators make it an essential component for modern wireless projects.

## Description

Description: Wiring methods: EN: Enable, then you need to enter the AT mode 3.3V Module Parameters: Size: 37.5mm * 16.5mm * 4mm(L * W * H) Input voltage: 3.6V - 6V. Leads to 6 feet: EN / VCC / GND / RXD / TXD / STATE (Bluetooth status leads to the foot, is not connected to the output low, after connecting output high) With the connection status indicator, LED flash means no Bluetooth connection; LED slow flash indicates enter AT command mode Onboard 3.3V regulator chip, the input voltage DC 3.6V-6V; when unpaired, current of about 30mA (because LED lights flashing, the current state of change); pairing is successful, the current is about 10mA Interface level 3.3V, you can directly connect a variety of microcontroller (Arduino / 51 / AVR / PIC / ARM / MSP430 etc.), 5V microcontroller can also be directly connected. Directly connected to the microcontroller serial port, not through the MAX232 chip! Open area effective transmission distance of 10 meters. After the pairing is successful, can be used as a full-duplex serial interfaces. Without knowing any of the Bluetooth protocol, but only supports 8 data bits, 1 stop bit, no parity communication format. You can switch between Receiver and Transmitter mode via AT commands Modules default baud rate is 9600, the default passkey is 1234, the default name for the HC-05 Package Content: 1 pcs HC-05 Wireless Bluetooth Module

Review: ممتازة
Review: Works Grate

## Features

- VCC: positive power supply?
- GND: power supply is negative?
- RXD: the receiver, Bluetooth module receives from another device sent data; normally connected to other devices transmitting end TXD?
- TXD: sending end, the Bluetooth module to send data to other devices; receiving terminal is normally connected to other devices RXD
- Size: 37.5mm * 16.5mm * 4mm(L * W * H)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MQKX7VP |
| Best Sellers Rank | #104,587 in Computers ( See Top 100 in Computers ) #1,009 in Motherboards |
| Item model number | 4350280737 |
| Manufacturer | Newzoll |
| Product Dimensions | 3.75 x 1.65 x 0.4 cm; 18 g |

## Product Details

- **Brand:** Newzoll
- **Compatible devices:** Desktop
- **Data link protocol:** Bluetooth
- **Hardware interface:** Bluetooth
- **Product dimensions:** 38L x 17W x 4H millimeters

## Images

![HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module - Image 1](https://m.media-amazon.com/images/I/61zrPo6x03L.jpg)
![HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module - Image 2](https://m.media-amazon.com/images/I/51ghGYYmOzL.jpg)
![HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module - Image 3](https://m.media-amazon.com/images/I/31RGfxrCXhL.jpg)
![HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module - Image 4](https://m.media-amazon.com/images/I/71BAf2aDXML.jpg)

## Questions & Answers

**Q: Does it tarnsmit and receive or just one?**
A: HC-05 is fully bi-directional - it will emulate an RS232 serial link. However, note that it will not communicate with IOS devices.

**Q: Could two of these communicate with each other, or does a phone have to be one of the communicators?**
A: Good day, I hope this answer is useful for you.
After the pairing is successful, it can be used as a full-duplex serial port. No need to understand any Bluetooth protocol, but only supports 8 data bits, 1 stop bit, and no parity communication format. This is also the most commonly used communication format, other formats are not supported.
The interface is 3.3V, which can be directly connected to various microcontrollers (for Arduino/ 51/ AVR/ PIC/ ARM/ MSP430, etc.), and 5V microcontrollers can also be directly connected. Connect directly to the serial port of the single-chip microcomputer, and cannot pass through the MAX232 chip!

**Q: How large is it?**
A: Size is 37.5mm * 16.5mm * 4mm(L * W * H)

**Q: Its pins, are they outputing rs 232 or ttl signal?**
A: It's neither but for interfacing treat them as TTL, 0-5 volts.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***4 on 27 November 2023*

ممتازة

### ⭐⭐⭐⭐⭐ Review
*by A***R on 27 August 2024*

Works Grate

### ⭐⭐⭐⭐⭐ Review
*by E***T on 5 December 2019*

If you've got servos and other hardware on the same rail, use bigger caps to cushion the voltage blows as well as divide your 5v incoming power to 3.3v otherwise it will continually reset. It still resets from time to time be less frequently after the larger caps and 3.3v.

## Frequently Bought Together

- HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module
- EDGELEC 120pcs 20cm Dupont Wire Female to Female Breadboard Jumper Wires 7.9 inch 1pin-1pin 2.54mm Connector Multicolored Ribbon Cables DIY Wires Length 10 15 20 30 40 50 100cm Optional

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-27*