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...
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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...
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Code: COM-040033
The USB-RS485-B module from Robot-Electronics (Devantech) allows for RS485 communication from a PC/Mac/Linux using a USB connection. It can be used to communicate with other hardware over RS485 protocol and can be used to generate DMX streams. More Details...
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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...
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Code: SKU-003305
This tiny logic level shifter features four bi-directional channels, allowing for safe and easy communication between devices operating at different logic levels. More Details...
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Code: SKU-005225
For the times when all you need is a basic SD card this is the card for you. 1GB capacity is plenty to store MP3s or log environmental data, and still dwarfs older memory systems like magnetic core memory . More Details...
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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...
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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...
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Code: SKU-003923
The SparkFun Serial Basic Breakout is an easy-to-use USB-to-Serial adaptor based on the CH340G IC from WCH. It works with 5V and 3.3V systems and should auto install on most operating systems without the need for additional drivers. More Details...
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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...
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