Built-in CC2541 Bluetooth 4.0 BLE module, supports iOS devices and Android 4.3 devices or later | 1 channel 12V relay. Operating voltage is DC 12V. | Free APP for Android , please search "DSD TECH Bluetooth" in google play. | Free APP for iOS devices(iPhone), please search "DSD TECH Bluetooth" in the APP Store. | DSD TECH provides a one-year warranty on this Bluetooth Relay. If you have any questions, Please feel free to contact us.

Bluetooth module HC-05 Master and slave Two in one module. Please note: iOS devices (iPhone) are not supported | Use the CSR BC417 mainstream bluetooth chip, bluetooth V2.0 SPP protocol standards | Module working voltage 3.6 V to 6V | Default rate of 9600,default pin:1234, the user can be set up.click the button into AT MODE | Can be switched via AT commands as master or slave mode , the device can be connected via AT commands specified

Support 4 kinds of TTL levels:This is a versatile USB to TTL converter. It is powerful enough to handle almost all TTL level communications. It is compatible with 5V, 3.3V, 2.5V, 1.8V TTL levels. | FTDI FT232RL Chip:Built-in original FTDI FT232RL Chip.The DSD TECH brand never uses cheap fake chips. | Not only provides access to UART Transmit (Tx), Receive (Rx), RTS#, CTS#, VCC and GND pins,but also provides access to DSR,R1,DCD,DTR,RESET pins | Protective case: Come with a protective case, this transparent protective case can effectively prevent static interference from the hand and prevent accidental short circuit. | WARRANTY:DSD TECH back this FTDI FT232RL USB to TTL UART adapter with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.

USB 2.0 to RS485 Converter and all kinds of 485 interface docking, transmission distance up to 1000 meters. | Mainchip:CP2102(SILICON LABS) ,Industrial chip, high quality, super stable. The Lead PINS include: A +, B-, GND ,GND,5V0 | Industrial Product, With 15KV ESD protection and TVS overvoltage protection | Supports Windows 2000, XP, Vista, Window 7,8,10, Mac OS 9, Mac OS X & Linux. | WARRANTY:DSD TECH back this usb to rs485 adapter with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.

Industrial grade USB to RS485 RS422 converter. It easily lets you connect any RS485 or RS422 device directly to your computer's USB port | The main chip is FTDI FT232RL. Built-in 15KV ESD protection and TVS overvoltage protection. Enough for you to deal with different occasions. | LED for RX TX and Power. | Works with Windows 10, 7(32/64bit) Vista 2008, XP, 2003,Mac Etc. | WARRANTY:We back this usb to RS422/RS485 Converter with 12 months warranty.If you meet any question, Please contact us, We will fix your issue within 24 hours.

With this USB to TTL adapter, you can establish communication with your board/MCU through your computer. Maximum transmission speed up to 3Mbps | The main chip is FT232RL from FTDI ,High stability. LED indicator for TX,RX,Power,It is very useful when you are debugging or downloading. | Pin Definition: CTS,RTS,RXD,TXD,GND,VCC;Support VCC output 3.3V and 5V, switch by jumper. | Works with Windows 10, 7(32/64bit) Vista 2008, XP, 2003,Mac Etc. | WARRANTY:We back this FDTD USB to TTL Converter with 12 months warranty.If you meet any question, Please contact us, We will fix your issue within 24 hours.

Built-in CC2541 Bluetooth 4.0 BLE module, supports iOS devices and Android 4.3 devices or later | 2 Channel relay. Supports 5V and 12V operating voltages. | Free APP for Android , please search "DSD TECH Bluetooth" in google play. | Free APP for iOS devices(iPhone), please search "DSD TECH Bluetooth" in the APPStore. | DSD TECH provides a one-year warranty on this Bluetooth Relay. If you have any questions, please feel free to contact us.

0.91 INCH OLED Display: Resolution is 128*32,Very Clear,Black background with blue text display. | IIC(I2C) interface: Only 4 PIN( VCC, GND, SCL, SDA), Simpler than SPI interface Screen, you can leave more ports for connecting other sensors. | Sample Code and Technical Support: You can drive this display through the u8glib library. DSD TECH also provides complete sample code and instruction manuals. you can drive this OLED screen in half an hour, | The main chip is SSD1306; supports DC 3.3V to 5.0V supply. Working Temperature: -30 degrees ~ 70 degrees | About Warranty: DSD TECH offers 1 year warranty and lifetime technical support.If you meet any question, Please contact us, we will fix your issue within 24 hours.

Designed to be used for USB to TTL electronic projects, easy to connect to your MCU or Raspberry Pi. Status LED for TX,RX,USB | Built-in Silicon Labs CP2102 USB to TTL Serial Transfer Chip ,Industrial chip, high quality, super stable. | Standard USB power supply, the lead pin includes: 3.3V, GND, TXD, RXD, 5V, GND. With this adapter, you can power 3.3V and 5V microcontrollers. Very flexible. | Supports Windows 2000, XP, Vista, Window 7,8,10, Mac OS 9, Mac OS X & Linux. | WARRANTY:DSD TECH back this usb to ttl serial cable adapter with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.

Built-in CC2541 Bluetooth 4.0 BLE module, supports iOS devices and Android 4.3 devices or later | A protective case is included to prevent dust and static electricity. | Free APP for Android , please search "DSD TECH Bluetooth" in google play. | Free APP for iOS devices(iPhone), please search "DSD TECH Bluetooth" in appstore. | DSD TECH provides a one-year warranty on this Bluetooth Relay. If you have any questions, please feel free to contact us.

HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your DIY 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 Dupont Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module. | Why choose DSD TECH brand: you not only get high-quality products, you can also get technical support and ONE YEAR WARRANTY. You can ask any questions about this HC05 module, our technical team is waiting for you.

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. | About WARRANTY: DSD TECH offers a one-year warranty and lifetime technical support. If you meet any question, please contact us, we will fix your issue within 24 hours.

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. | Warranty: DSD TECH provide a 1 year warranty and lifetime technical support for this Bluetooth to RS485 RS232 Adapter. If you have any questions, please feel free to contact us. We will respond within 24 hours.

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. | WIFI to RS485/RS232: With this WIFI to RS485/RS232 adapter, you can quickly establish a connection with your RS485/RS232 devices via WIFI network. | Compatibility: Built-in Industrial WIFI module.Support TCP,HTTP Client,MQTT and other communication protocols. | Working mode:Configuration is done via AT command. Supports master mode and slave mode. Two SH-B35W adapters can form a wireless connection network. | Warranty: DSD TECH provide a 1 year warranty and lifetime technical support for this Bluetooth to RS485 RS232 Adapter. If you have any questions, please feel free to contact us. We will respond within 24 hours.

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. | USB to RJ12/RJ11: RJ12 and RJ11 are the same on the physical interface. The difference is that RJ12 uses 6 data lines, while RJ11 uses 4 data lines.This cable leads to 4 signals: GND, Tx, RX, GND. | Silicon Labs CP2102N:CP2102N is an upgraded version of CP2102 chip, with the same high performance and compatibility as FTDI FT232RL. | Replacement for APC Part# 940-0144A. Suitable for the following models: AP77XX AP78XX AP79XX AP86XX AP88XX AP89XX | Warranty:DSD TECH provide a 1 year warranty and lifetime technical support for this USB to RJ12/RJ11 Serial Cable.if you have any questions, please feel free to contact us. We will respond within 24 hours.

DSD TECH: DSD TECH focuses on the development of serial devices such as TTL/RS232/RS485. We have served more than 100,000 customers in total. | Silicon Labs CP2102N:CP2102N is an upgraded version of CP2102 chip, the maximum transmission speed can reach 3Mbps, which is equivalent to FT232RL. | 1.2M/4 Feet:The length of this USB to TTL serial cable is 1.2M/4 Feet. The pin interfaces are: VCC (5V), GND, TX, RX, CTS, RTS. It can meet most of the usage scenarios. | Compatibility: This USB to TTL cable is compatible with Windows 7, 8, 10 and various Linux OS and Mac OS | Warranty:DSD TECH provide a 1 year warranty and lifetime technical support for this USB to TTL Serial Cable.if you have any questions, please feel free to contact us. We will respond within 24 hours.

FTDI FT232RL IC:Built-in original FTDI FT232RL IC. Supports 5V, 3.3V and 1.8V Logic TTL levels,You can switch Logic levels by jumper. | Protective case: Come with a transparent protective casing, this transparent protective casing to effectively prevent static interference from the hand and prevent unintentional short circuit. | Application:Support EEPROM, Vendor ID re-write, unbrick routers ,program ESP8266 module, interface to GPS modules, flash firmware on hard drive, update transmitter, interface to set top box and other compatible UART interface devices | Compatibility: This USB to TTL adapter is compatible with Windows 7, 8, 10 and various Linux OS and Mac OS | WARRANTY:DSD TECH back this FTDI FT232RL USB to TTL UART adapter with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.

FTDI FT232RL Chip:Built-in original FTDI FT232RL Chip,High quality and high reliability.Ideal for programmers, hardware engineers and DIY User. | 1.8M/5.9 Feet: The length of the line is 1.8 meters(5.9 feet).ideal USB 2.0 debug tools for Vendor ID re-write, router, GPS, set top box, transmitter, flash firmware,Debugging,Programing , etc. | PIN:this cable provides access to UART (transmit) Tx, (receive) Rx, VCC (5V) and GND,CTS,RTS.TTL Level is 3.3V | Compatibility: This USB-to-TTL Serial cable is compatible with Windows 7, 8, 10 and various Linux OS and Mac OS | WARRANTY:DSD TECH back this FTDI FT232RL USB to TTL Serial cable with 12 months warranty.If you meet any question, please contact us, we will fix your issue within 24 hours.