RS-232 to RS-485 - sometimes you need the flexibility that a RS-485 gives you over the simple RS232!
The USB to RS-232 Converter is a self powered usb to DB9 serial port adapter.
Basic breakout board for FTDI's popular USB to UART IC. Now with internal oscillator and EEPROM, the FT232RL is an impressive IC!
This little gadget does a great job of letting you sharing files with your computer utilizing simple serial commands.
The Prop Plug is a compact USB to Serial connector for microcontroller programming and communication. We're about the best place in the universe to get them!
Add a USB drive or thumbdrive to your microcontroller!
The I2C-TMP board is a 6-pin CMOS 12-bit digital temperature sensor device using I2C bus. There are no external components required.
The I2C-ADC board is an I2C 12-bit, 8-CH Analog-to-Digital Converter module. The module can be configured as a Single-Ended Inputs Mode or Differential Inputs Mode.
The I2C-DAC board is a 6-pin CMOS 8-bit digital-to-analog converter device using I2C bus. There are no external components required.