Christmas Holiday Shipping Notice. Last orders shipped 1pm EST, 11 Dec. 
We are closed for holidays from 12th Dec to 3rd Jan.  See Backorders shipped on 3-Jan-2018 for more info.
Adaptors and Converters

Adaptors and Converters

There are many different protocols and voltages for electronic communications. To get one device to talk to another you can use an adaptor/converter to change the voltage level or to translate between the different protocols like I2C, USB, RS285 and TTL Serial.

Computers tend to have only USB connections these days but small electronics typically use other light weight protocols so most of our adaptors connect from USB to one of I2C, TTL serial, RS485.

16 Channel Digital & Analog Multiplexer-Demultiplexer

Code: COM-40015

Need more IO? This analog and digital multiplexer-demultiplexer breakout board provides 16 IO channels using just 5 pins on a microcontroller. Digital signals like I2C, Serial are supported as well as analog IO. Operates over 2-6V.


In Stock: Ships Today

Ship 87 units in 7 days

Devantech Enhanced USB to ISS adaptor / communications module

Code: COM-40001

The USB-ISS module is a new enhanced version of Devantech's low cost USB-I2c module. The USB-ISS is able to connect to I2C, SPI and Serial buses as well as Digital I/O and Analog inputs. Powered from the USB cable the adaptor supplies 5v @ 70mA and operates as an I2C master. Works with Windows CE...


In Stock: Ships Today

Ship in 7 days

FTDI Cable 5V

Code: SKU-000489

This cable is a USB to 5V TTL level serial converter and cable in one. The reliable FTDI chip is the FT232RQ. One end is a standard type A plug found on computers and the other is a 6 pin 0.1" female header with connections for RTS, RX, TX, 5V, CTS, GND.


In Stock: Ships Today

Ship 1312 units in 7 days

SparkFun FTDI Basic Breakout - 3.3V

Code: SKU-000517

This is the newest revision of our FTDI Basic . We now use a SMD 6-pin header on the bottom, which makes it smaller and more compact. Functionality has remained the same. This is a basic breakout board for the FTDI FT232RL USB to serial IC.


In Stock: Ships Today

Ship 566 units in 7 days

SparkFun FTDI Basic Breakout Board - 5V USB to Serial Adaptor

Code: COM-40005

The FTDI basic breakout board by SparkFun Electronics is ideal for programming the Arduino Pro 328 and Arduino Pro Mini 328 via a USB cable. It is also usefull for general serial applications. The board includes TX and RX LEDs to monitor traffic plus it can be configured to work at 3.3V via a jum...


In Stock: Ships Today

Ship 662 units in 7 days

SparkFun Logic Level Converter - Bi-Directional (3.3V - 5V)

Code: COM-40018

Easily connect 3.3V devices to a 5V system or vice versa with this little logic level converter from SparkFun. Supports I2C, SPI, TTL Serial and other digital signals. Not compatible with analog signals.


Out of Local Stock

Ship 1437 units in 7 days

 Notify Me

USB-to-Serial Adapter CP2104 Carrier

Code: COM-40028

This USB-to-serial adapter lets you easily connect a TTL serial device to a PC by acting as a virtual serial port. The board is a Micro-USB carrier for the Silicon Labs CP2104 USB-to-UART bridge that provides access to all of its control signal pins and GPIO pins.


In Stock: Ships Today

Ship 114 units in 7 days

Digilent BNC Adapter Board

Code: SKU-004013

The Digilent BNC Adaptor Board is a simple add-on board intended to be used with the Digilent Analogue Discovery 2, which allows you to use standard BNC-terminated test leads and probes with your pocket-sized oscilloscope.


Order As Required

Ship 21 units in 7 days

FTDI Cable 5V VCC-3.3V I/O

Code: SKU-000488

The FTDI cable is a USB to Serial (TTL level) converter which allows for a simple way to connect TTL interface devices to USB. The VCC pins of this FTDI cable are configured to operate at 5V with 3.3V I/O. The FTDI cable is designed around an FT232RQ, which is housed in a USB A connector.


Order As Required

Ship 2074 units in 7 days

I²C Long-Distance Differential Extender

Code: SKU-003067

This I²C extender board from SJTbits enables the operational range of an I²C bus to be extended significantly. By transparently converting the data and clock lines to differential signals and back, they allow I²C devices to communicate at distances of over a hundred feet.


Order As Required

Ship 149 units in 7 days