Best Hand Phone Module

HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino

The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module.
HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED..
Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234.
Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode..
6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board.

The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module.
HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED..
Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234.
Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode..
6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board.

Dual-function module: envelope follower AND attenuverter / offset generator.
Envelope Follower: Use a guitar/microphone/phone etc to trigger envelopes and gates in your Eurorack system.
Attenuverter: Attenuverts your voltage sources up to two times in the positive or negative.
Offset Generator: Provides up to 5 volts in the positive or negative.
Specifications: Module width: 4HP, Module depth: 48mm. Current draw: +12V: 25mA, -12V: 18mA.

ON-BOARD ESP-01 WIFI MODULE: The relay board is equipped with on-board ESP-01 WiFi module and high performance microprocessor STM8S103..
UART DEBUG INTERFACE: The relay has reserved UART debug interface and STM8 SWIM program download interface..
SMART CONFIG TECHNOLOGY: The module uses smart config technology to complete the account and password configuration on the APP ESP-01 WiFi module on the mobile phone, and configure the username and password memory functions..
ON-BOARD 5V RELAY: This relay module adopts On-board 5V,10A250V AC 10A30V DC relay, which can continuously pull 100,000 times with diode discharge protection and short response time..
WORKING STATUS INDICATOR: The module has board mode selection and real-time working status indicator..

HC-05 Bluetooth Module is an easy to use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup..
Default baud rate:9600, Button: Press the button.
the module enter the AT mode. AT commands are executed only in AT mode..
HC-05 is able to operate in both master and slave mode. Its communication is via serial communication which makes an easy way to interface with controller or PC. It's ideal replacement to your wired serial connection..
HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your motherboard project, and then you can use your android phone to control some gadgets, such as: switch, LED..
Note: The module doesn’t suitable for IOS system..

This module uses genuine relays and normally open interfaces. High stability and low power consumption..
Strong driving ability, stable and reliable performance. High efficiency, fine workmanship, and durable..
Add one more ESP-01S module. This smart relay module is based on the ESP-01S WIFI module design. It can be used to DIY your own smart switch. It can be remotely controlled by the mobile phone APP and provides APP and LUA source programs. It's easy to use right away..
The package includes：2 pcs ESP8266 ESP-01S Relay module, relay WIFI smart socket (with ESP-01S).
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With a USB interface, you can directly use the phone data cable on the computer point of view positioning effect.
GT-U7 main module GPS module using the original UBLOX 7th generation chip, Software is compatible with NEO-6M. GT-U7 module, with high sensitivity,....
USB directly connected to the computer, That is, with the host computer-owned serial port function, no need for external serial module, send IPX....
If you have any issue when using our product,or you need product use documentation, please contact us directly for assistance.we will reply your....

【Compatibility】: AUX Adapter is designed for Pioneer Wireless IP-BUS input.
【Easy to use】: For pioneer bluetooth ip bus auxiliary cable receiver is easy to use, just connect the 12-pin connector on the back of the radio..
【About the wiring】: Just plug it into the back of the radio, then connect the red wire to 12V+ and the black wire to 12V-..
【Mobile phone use】: Audio Bluetooth Adapter responds to the mat of your mobile phone or Bluetooth module. Select Aux from your radio, and then you....
【Bluetooth adapter】: This Bluetooth Audio Stereo Module allows you to listen to music via mobile phone/tablet/mp3 (note that your device needs to....

...and wiring harness, and use it at any time..
【STANDARD US SIZE】- Full U.S. sizes optinal, size 7: inner perimeter:54mm, size 8: inner perimeter:57mm, size9: inner perimeter:60mm, size10: inner perimeter:62.8mm, size11: inner perimeter:66mm, size12: inner perimeter:70mm.(Please refer to the size picture). With ID Module/M1 Module/NFC Module for you to choose from..
【WIDELY COMPATIBILITY】- Support phone models such as Nokia, Sony, Samsung, HTC, MIUI and all other NFC-enabled Android and Windows Phone systems. PLEASE NOTE: This item only can work for the Android and Windows Phone which support NFC function, Please confirm your device if your phone support NFC before purchasing. Thank you..