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-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-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-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-40005
This is a basic breakout board for the FTDI FT232RL USB to serial IC. The pinout of this board matches the FTDI cable to work with 5V Arduino boards. More Details...
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Code: COM-40018
The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. More Details...
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Code: SKU-005534
A lot of the time you just need to add more analogue inputs to solve a problem. It happens. The SparkFun Qwiic 12 Bit ADC can provide four channels of I 2 C controlled ADC input to your Qwiic enabled project. These channels can be used as single-ended inputs, or in pairs for differential inputs. 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. More Details...
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Code: COM-40024
There are a lot of devices out there that still communicate over RS232 but we bet your new laptop isn't one of them. Don't worry though we've got you covered. This 6ft converter plugs into your computer's USB port and provides you with a DB-9 RSR232 connection. More Details...
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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...
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