![Amazon.com: HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module : Electronics Amazon.com: HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module : Electronics](https://m.media-amazon.com/images/I/51OuenE9ctL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOURANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA23%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: HC-05 Wireless Bluetooth Receiver RF Transceiver Module Serial Port Transmitter Module : Electronics
![Amazon.com: ESP32 CAM for Arduino Kits Monitor Snapshot Face Detection Recognition WiFi Bluetooth Camera Module with 128M SD Card USB to Serial Cable HC-SR501 Sound Sensor Compatible for Arduino IDE(Tutorial) : Electronics Amazon.com: ESP32 CAM for Arduino Kits Monitor Snapshot Face Detection Recognition WiFi Bluetooth Camera Module with 128M SD Card USB to Serial Cable HC-SR501 Sound Sensor Compatible for Arduino IDE(Tutorial) : Electronics](https://m.media-amazon.com/images/I/51S+byZ+SSL._AC_.jpg)
Amazon.com: ESP32 CAM for Arduino Kits Monitor Snapshot Face Detection Recognition WiFi Bluetooth Camera Module with 128M SD Card USB to Serial Cable HC-SR501 Sound Sensor Compatible for Arduino IDE(Tutorial) : Electronics
![Songhe HC05 HC 05 Bluetooth Module RF Wireless Bluetooth Transceiver Module 6 Pins for Arduino (2PCS) : Electronics - Amazon.com Songhe HC05 HC 05 Bluetooth Module RF Wireless Bluetooth Transceiver Module 6 Pins for Arduino (2PCS) : Electronics - Amazon.com](https://m.media-amazon.com/images/I/41DcB-a0hoL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOURANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA98%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Songhe HC05 HC 05 Bluetooth Module RF Wireless Bluetooth Transceiver Module 6 Pins for Arduino (2PCS) : Electronics - Amazon.com
![Amazon.com: DSD TECH HC-05 Classic Bluetooth 2.0 Serial Wireless Module for UNO R3 Nano (Basic Version) : Electronics Amazon.com: DSD TECH HC-05 Classic Bluetooth 2.0 Serial Wireless Module for UNO R3 Nano (Basic Version) : Electronics](https://m.media-amazon.com/images/I/51Un-GQMHwL._AC_.jpg)
Amazon.com: DSD TECH HC-05 Classic Bluetooth 2.0 Serial Wireless Module for UNO R3 Nano (Basic Version) : Electronics
![Amazon.com: AITRIP 4pcs D1 Mini NodeMCU ESP32 ESP-WROOM-32 WLAN WiFi Bluetooth Development Board 5V Compatible with Arduino : Electronics Amazon.com: AITRIP 4pcs D1 Mini NodeMCU ESP32 ESP-WROOM-32 WLAN WiFi Bluetooth Development Board 5V Compatible with Arduino : Electronics](https://m.media-amazon.com/images/I/51ruV-SmhbL._AC_.jpg)
Amazon.com: AITRIP 4pcs D1 Mini NodeMCU ESP32 ESP-WROOM-32 WLAN WiFi Bluetooth Development Board 5V Compatible with Arduino : Electronics
![Songhe HC05 HC 05 Bluetooth Module RF Wireless Bluetooth Transceiver Module 6 Pins for Arduino (2PCS) : Electronics - Amazon.com Songhe HC05 HC 05 Bluetooth Module RF Wireless Bluetooth Transceiver Module 6 Pins for Arduino (2PCS) : Electronics - Amazon.com](https://m.media-amazon.com/images/I/41DcB-a0hoL._AC_SY350_QL15_.jpg)
Songhe HC05 HC 05 Bluetooth Module RF Wireless Bluetooth Transceiver Module 6 Pins for Arduino (2PCS) : Electronics - Amazon.com
![Amazon.com: DSD TECH HC-05 Classic Bluetooth 2.0 Serial Wireless Module for UNO R3 Nano (Basic Version) : Electronics Amazon.com: DSD TECH HC-05 Classic Bluetooth 2.0 Serial Wireless Module for UNO R3 Nano (Basic Version) : Electronics](https://m.media-amazon.com/images/I/51RpDA6LQkL._AC_SY580_.jpg)
Amazon.com: DSD TECH HC-05 Classic Bluetooth 2.0 Serial Wireless Module for UNO R3 Nano (Basic Version) : Electronics
![Amazon.com: DSD TECH SH-H3 Bluetooth Dual Mode Module for Arduino Compatible with iPhone and Android Phone Replacement of HC-05 HC-06 : Electronics Amazon.com: DSD TECH SH-H3 Bluetooth Dual Mode Module for Arduino Compatible with iPhone and Android Phone Replacement of HC-05 HC-06 : Electronics](https://m.media-amazon.com/images/I/61yFN3-Ik7L.jpg)
Amazon.com: DSD TECH SH-H3 Bluetooth Dual Mode Module for Arduino Compatible with iPhone and Android Phone Replacement of HC-05 HC-06 : Electronics
![Amazon.com: GAR Monster Starter Kit for Arduino Uno Mega Nano, Complete Advanced Set w/ ESP32, 25 Sensor Modules, Bluetooth WiFi Ethernet Wireless for Electronics STEM Robotics Projects : Electronics Amazon.com: GAR Monster Starter Kit for Arduino Uno Mega Nano, Complete Advanced Set w/ ESP32, 25 Sensor Modules, Bluetooth WiFi Ethernet Wireless for Electronics STEM Robotics Projects : Electronics](https://m.media-amazon.com/images/I/51rDrAZAp9L._AC_.jpg)
Amazon.com: GAR Monster Starter Kit for Arduino Uno Mega Nano, Complete Advanced Set w/ ESP32, 25 Sensor Modules, Bluetooth WiFi Ethernet Wireless for Electronics STEM Robotics Projects : Electronics
![Amazon.com: ACEIRMC ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi Bluetooth Dual Cores Microcontroller Processor Integrated with ESP32s Antenna RF AMP Filter AP STA for Arduino IDE (3pcs) : Electronics Amazon.com: ACEIRMC ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi Bluetooth Dual Cores Microcontroller Processor Integrated with ESP32s Antenna RF AMP Filter AP STA for Arduino IDE (3pcs) : Electronics](https://m.media-amazon.com/images/I/51ErG5nCifL._AC_.jpg)
Amazon.com: ACEIRMC ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi Bluetooth Dual Cores Microcontroller Processor Integrated with ESP32s Antenna RF AMP Filter AP STA for Arduino IDE (3pcs) : Electronics
![Amazon.com: ACEIRMC HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino (3pcs) : Electronics Amazon.com: ACEIRMC HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino (3pcs) : Electronics](https://m.media-amazon.com/images/I/51NhM3di0UL._AC_.jpg)
Amazon.com: ACEIRMC HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino (3pcs) : Electronics
![Amazon.com: AITRIP AITRIP 1 PCS ESP32 ESP32-WROVER Board with Camera WiFi & Bluetooth Development Board Compatible with Arduino IDE (programing Languages Including C and MicroPython.) : Electronics Amazon.com: AITRIP AITRIP 1 PCS ESP32 ESP32-WROVER Board with Camera WiFi & Bluetooth Development Board Compatible with Arduino IDE (programing Languages Including C and MicroPython.) : Electronics](https://m.media-amazon.com/images/I/41MilwsdiPL._AC_SY580_.jpg)
Amazon.com: AITRIP AITRIP 1 PCS ESP32 ESP32-WROVER Board with Camera WiFi & Bluetooth Development Board Compatible with Arduino IDE (programing Languages Including C and MicroPython.) : Electronics
![Amazon.com: HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE : Electronics Amazon.com: HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE : Electronics](https://m.media-amazon.com/images/I/415uKDWgmEL._AC_.jpg)
Amazon.com: HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE : Electronics
![Amazon.com: DSD TECH HC-06 Wireless Bluetooth Serial Transceiver Support Module Slave and Master Mode for Arduino + 4PIN Dupont Cable : Electronics Amazon.com: DSD TECH HC-06 Wireless Bluetooth Serial Transceiver Support Module Slave and Master Mode for Arduino + 4PIN Dupont Cable : Electronics](https://m.media-amazon.com/images/I/41geZ+krLoL._AC_SY580_.jpg)
Amazon.com: DSD TECH HC-06 Wireless Bluetooth Serial Transceiver Support Module Slave and Master Mode for Arduino + 4PIN Dupont Cable : Electronics
![Amazon.com: HiLetgo 2pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics Amazon.com: HiLetgo 2pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics](https://m.media-amazon.com/images/I/41gZJNUw71L._AC_SY350_.jpg)
Amazon.com: HiLetgo 2pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics
![Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics](https://m.media-amazon.com/images/I/61FGTph+waL.jpg)
Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics
![Amazon.com: HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics Amazon.com: HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics](https://m.media-amazon.com/images/I/51d-kkMz1EL._AC_.jpg)
Amazon.com: HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics
![Amazon.com: HiLetgo 2pcs ESP32-CAM Camera Module ESP32-S OV2640 2MP Camera Development Board + Micro USB to Serial Port CH340C 4.75V-5.25V Wireless WiFi Bluetooth with TF Card Slot for Arduino Raspberry Pi : Amazon.com: HiLetgo 2pcs ESP32-CAM Camera Module ESP32-S OV2640 2MP Camera Development Board + Micro USB to Serial Port CH340C 4.75V-5.25V Wireless WiFi Bluetooth with TF Card Slot for Arduino Raspberry Pi :](https://m.media-amazon.com/images/I/51Lbo2mjAtL._AC_.jpg)
Amazon.com: HiLetgo 2pcs ESP32-CAM Camera Module ESP32-S OV2640 2MP Camera Development Board + Micro USB to Serial Port CH340C 4.75V-5.25V Wireless WiFi Bluetooth with TF Card Slot for Arduino Raspberry Pi :
![Amazon.com: HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics Amazon.com: HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics](https://m.media-amazon.com/images/I/71xYTVQNw1L.jpg)
Amazon.com: HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino : Electronics
![Amazon.com: DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino UNO R3 Mega 2560 Nano : Electronics Amazon.com: DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino UNO R3 Mega 2560 Nano : Electronics](https://m.media-amazon.com/images/I/41lFg1qyS7L._AC_.jpg)
Amazon.com: DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino UNO R3 Mega 2560 Nano : Electronics
![Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics](https://m.media-amazon.com/images/I/61TQG6ds5mL.jpg)
Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics
![Amazon.com: HiLetgo HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics Amazon.com: HiLetgo HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics](https://m.media-amazon.com/images/I/41MBduzojML._AC_.jpg)