The Best Rs232 To Bluetooth Module of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Rs232 To Bluetooth Module of 2025. Check our ranking below.

2,061 Reviews Scanned

Rank No. #1

CP26 RS232 to Bluetooth Serial Adapter Industrial Wireless Bluetooth Communication Module to RS232 Converter, Change 232 Wired Device to Wireless (CP26 for Phone)

【RS232 device to wireless】DX-CP26 can convert your RS232 & RJ45 interface device to wireless Bluetooth communication, and can support wireless communication between PCIOSAndroid. It can be used in RS232 interface device debugging, parameter setting, information query and other application scenarios. (Note: You need to purchase a computer package to communicate with a PC)
【Built-in Bluetooth 5.1 BLE module】Adopts Renesas DA14531 chip + PA Amplifiers, with a transmission power of up to 13.5dBm and a stable communication distance. External rubber stick antenna, Visual distance for communication with devices: mobile phone:90m / PC:70m / device to device:400m.
【Built-in rechargeable lithium battery】The DX-CP26 has a built-in rechargeable lithium battery and does not require external power supply. It can be charged through the TYPE-C port and the battery life can reach up to 24 hours.
【Support baud rate switching】DX-CP26 supports button adjustment of baud rate, supported baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200, default 9600bps/8/n/1 (baud rate/data bit/no parity/stop bit). Short press the button twice to switch the baud rate once, the number of blue light flashes represents the baud rate number, one flash for 2400, two times/4800, three times/9600, four times/16200, five times/38400, six times/57600, seven times/115200
【Rich information】We provide a rich information package, including: product manuals, tutorial videos, development and testing tools, etc.Additionally, click the Product Guide and Documentation links below to access user guides, complete product information, and product tutorials.

Rank No. #2

DSD TECH SH-B23A Bluetooth 2.0 to RS232 Serial Adapter with DB9 Converter

Bluetooth RS232 Adapter : With this Bluetooth RS232 adapter, you can wirelessly communicate with any RS232 devices on Android smartphones or a Bluetooth enabled computer.
Built-in Industrial Bluetooth 2.0 SPP module driven by the CSR BC417 chip. Compatible with Android phones and Bluetooth enabled computers, but not compatible with any iOS device.
RS232 DB9 Interface: Please note that only Rx and Tx signals are valid. Does not support CTS, RTS hardware flow control.
Bluetooth pairing PIN: 1234, Baud rate parameters: 9600, N, 8, 1. Transmission distance of more than 20 meters.Baud rate and Bluetooth name and PIN can be configured by software. DSD TECH provides setup software for free.
Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this Bluetooth 2.0 to RS232 Serial Adapter. All questions will be answered within 1 working day.

Rank No. #3

DSD TECH SH-B30-BLE RS232 to Bluetooth 5.0 BLE Adapter Support iOS Android

DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan
Bluetooth 5.0 BLE to RS232:With this Bluetooth 5.0 BLE to RS232 adapter, you can wirelessly connect your handheld device (iPhone/Android Phone) to devices that support RS232 communication.
Compatibility:The SH-B30-BLE has a built-in TI CC2640R2F Bluetooth 5.0 BLE module, which is compatible with iPhone/iPad, while the SH-B30 and SH-B35 have a built-in Bluetooth 2.0 SPP module, which does not support iOS devices.
Free Software: DSD TECH provides free configuration software to help you quickly configure communication parameters such as baud rate or Bluetooth name.
Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this Bluetooth 5.0 BLE to RS232 adapter. All questions will be answered within 1 working day.

Rank No. #4

PDDAXLQUE DX-CP26 RS232 to Bluetooth Wireless Serial Adaper Converter Support IOSAndroidWindows Suport DB9RJ45 Interface Built-in Rechargeable Lithium Battery (CP26 for PC)

【RS232 device to wireless】DX-CP26 can convert your RS232 & RJ45 interface device to wireless Bluetooth communication, and can support wireless communication between PCIOSAndroid. It can be used in RS232 interface device debugging, parameter setting, information query and other application scenarios. (Note: You need to purchase a computer package to communicate with a PC)
【Built-in Bluetooth 5.1 BLE module】Adopts Renesas DA14531 chip + PA Amplifiers, with a transmission power of up to 13.5dBm and a stable communication distance. External rubber stick antenna, Visual distance for communication with devices: mobile phone:90m / PC:70m / device to device:400m.
【Built-in rechargeable lithium battery】The DX-CP26 has a built-in rechargeable lithium battery and does not require external power supply. It can be charged through the TYPE-C port and the battery life can reach up to 24 hours.
【Support baud rate switching】DX-CP26 supports button adjustment of baud rate, supported baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200, default 9600bps/8/n/1 (baud rate/data bit/no parity/stop bit). Short press the button twice to switch the baud rate once, the number of blue light flashes represents the baud rate number, one flash for 2400, two times/4800, three times/9600, four times/16200, five times/38400, six times/57600, seven times/115200
【Rich Information】We provide a rich information package, including: product manuals, tutorial videos, development and testing tools, etc. You can access the user guide for complete product information by clicking on the product guide and document link below.

Rank No. #5

PDDAXLQUE DX-CP26 RS232 to Bluetooth Wireless Serial Adaper Converter Support IOSAndroidWindows Suport DB9RJ45 Interface Built-in Rechargeable Lithium Battery (CP26 for Phone)

【RS232 device to wireless】DX-CP26 can convert your RS232 & RJ45 interface device to wireless Bluetooth communication, and can support wireless communication between PCIOSAndroid. It can be used in RS232 interface device debugging, parameter setting, information query and other application scenarios. (Note: You need to purchase a computer package to communicate with a PC)
【Built-in Bluetooth 5.1 BLE module】Adopts Renesas DA14531 chip + PA Amplifiers, with a transmission power of up to 13.5dBm and a stable communication distance. External rubber stick antenna, Visual distance for communication with devices: mobile phone:90m / PC:70m / device to device:400m.
【Built-in rechargeable lithium battery】The DX-CP26 has a built-in rechargeable lithium battery and does not require external power supply. It can be charged through the TYPE-C port and the battery life can reach up to 24 hours.
【Support baud rate switching】DX-CP26 supports button adjustment of baud rate, supported baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200, default 9600bps/8/n/1 (baud rate/data bit/no parity/stop bit). Short press the button twice to switch the baud rate once, the number of blue light flashes represents the baud rate number, one flash for 2400, two times/4800, three times/9600, four times/16200, five times/38400, six times/57600, seven times/115200
【Rich Information】We provide a rich information package, including: product manuals, tutorial videos, development and testing tools, etc. You can access the user guide for complete product information by clicking on the product guide and document link below.

Rank No. #6

CP26 RS232 to Bluetooth Serial Adapter Industrial Wireless Bluetooth Communication Module to RS232 Converter, Change 232 Wired Device to Wireless (CP26 for Device)

Wired RS232 Devices to Wireless: Bluetooth to RS232 Converter is very easy to use. With this Bluetooth RS232 adapter, you can wirelessly communicate with any RS232 devices on Android/iOS smartphones. Easy to use, flexible and stable.
Built-in Bluetooth 5.1 BLE module: Long range communication. Compatible with Android phones and iOS devices.This product cannot be directly connected to a computer. If you need to connect to a computer, please use our store's CP11-Master module.
USB/Battery Supply: This product is powered by USB by default,and the switch is set to the USB end by default. If battery power is required, turn the switch to the BAT end. This product has a built-in battery.
RS232 Communication Port: default 9600bps/8/n/1 (baud rate/data bit/no parity/stop bit), module supports software flow control. Supported baud rate: 2400,4800,9600,19200,38400,57600,115200. The VCC power supply voltage range is 4.5V-6V.
Technical Support: Out of the box, plug and play. You can find out testing softwares,user's manuals,devlopment documents,and all resources related to this bluetooth module on our offical website. If you encounter any issues, please contact us by Amazon email, and we will resolve your issues within 24 hours

Rank No. #7

hiBCTR hc-06 rs232 4 pin Wireless Bluetooth Serial rf transceiver Module for arduino - Compatible with hc-05 Bluetooth Module and chip

1. Compatible with various USB Bluetooth adapters, operates in slave mode: Pair with Bluetooth dongle for seamless connectivity.
2. LED indicator for Bluetooth connection status: Flashing for connectivity, steady light for active connection, and open port on backplane.
3. Core module equipped with HC-06, featuring VCC, GND, TXD, RXD, and LED status output pins. Microcontroller connectivity can be determined by foot state and slave KEY pin.
4. Compact design, low power consumption, and high sensitivity for both sending and receiving data. Technical specifications include Bluetooth version V2.0+EDR, operating voltage 3.3V, UART host interface, storage temperature range -40℃ to +150℃, signal coverage up to 30ft, item size 4.3 * 1.6 * 0.7cm, and item weight 3g.
5. Ideal for short-range wireless data transmission applications, such as Bluetooth wireless data transmission, industrial remote control, telemetry, traffic, underground positioning, alarm systems, and smart home projects. Drop-in replacement for wired serial connections, offering transparent usage for establishing connections between MCUs, GPS, PCs, and various embedded projects.

Rank No. #8

HiLetgo HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino

Works with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth connectivity, lit the Bluetooth connection and open a port Backplane
Core module uses HC-06, leads from the module interface includes VCC, GND, TXD, RXD, reserve LED status output pin, the microcontroller can be judged by the foot state Bluetooth has connected KEY pin slave invalid.
Small size, low power consumption,high sensitivity for send and receive. Bluetooth version: V2.0+EDR &Operating voltage: 3.3V &Host Interface:UART &Storage Temperature:-40℃~+150℃&Signal coverage: 30ft &Item size: 4.3 * 1.6 * 0.7cm &Item weight: 3g.
The module is mainly used for short-range data wireless transmission,such as Bluetooth wireless data transmission,Industrial remote control, telemetry,Traffic, underground positioning, alarm,Smart home ect.
Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc. Computer and peripheral devices.

Rank No. #9

HiLetgo 2pcs HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino

Works with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth connectivity, lit the Bluetooth connection and open a port Backplane
Core module uses HC-06, leads from the module interface includes VCC, GND, TXD, RXD, reserve LED status output pin, the microcontroller can be judged by the foot state Bluetooth has connected KEY pin slave invalid.
Small size, low power consumption,high sensitivity for send and receive. Bluetooth version: V2.0+EDR &Operating voltage: 3.3V &Host Interface:UART &Storage Temperature:-40℃~+150℃&Signal coverage: 30ft &Item size: 4.3 * 1.6 * 0.7cm &Item weight: 3g.
The module is mainly used for short-range data wireless transmission,such as Bluetooth wireless data transmission,Industrial remote control, telemetry,Traffic, underground positioning, alarm,Smart home ect.
Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc. Computer and peripheral devices.

Rank No. #10

DSD TECH SH-B35 RS485 RS232 to Bluetooth 2.0 Adapter Support Android and Windows

DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan.
Bluetooth 2.0 to RS485/RS232: With this Bluetooth RS485 adapter, you can wirelessly communicate with RS485/RS232 devices on Android devices or a Bluetooth enabled Computer.
Compatibility:Built-in Industrial Bluetooth 2.0 SPP module driven by the CSR BC417 chip. Compatible with Android phones and Bluetooth enabled computers, but not compatible with any iOS device.
Working mode: Supports master mode and slave mode. Two SH-B35 adapters can form a Bluetooth connection network.
Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this RS485 RS232 to Bluetooth 2.0 Adapter. All questions will be answered within 1 working day.

Last update on 2025-12-06 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best Rs232 To Bluetooth Module?

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Potential sources can include buying guides for Rs232 To Bluetooth Module, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Rs232 To Bluetooth Module. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Rs232 To Bluetooth Module buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Rs232 To Bluetooth Module currently available on the market.

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Brand Value: Every brand of Rs232 To Bluetooth Module has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Rs232 To Bluetooth Module?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Rs232 To Bluetooth Module.
Customer Ratings: Number ratings grade Rs232 To Bluetooth Module objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Rs232 To Bluetooth Module.
Product Quality: You don’t always get what you pay for with an Rs232 To Bluetooth Module, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Rs232 To Bluetooth Module is should be an indication of how long it will work out for you.

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The Best Rs232 To Bluetooth Module of 2025 – Reviewed and Top Rated

How Do You Buy The Best Rs232 To Bluetooth Module?

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