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.
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. More Details...
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... More Details...
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. More Details...
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. More Details...
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. More Details...
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. More Details...
Code: MCU-60241
Convert RS232 to TTL and back using this super tiny board. TX and RX are both converted allowing a microcontroller to talk to a computer or other RS232 devices via serial conversion. More Details...
Code: COM-40024
What do you do if you've got a laptop and need RS232 serial? This is a high quality, low cost, small, and easy to use USB to RS232 converter with a cable. Driver support for Windows, Mac, and Linux RedHat. More Details...
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. More Details...
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. More Details...
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