SparkFun FTDI Basic Breakout - 5V

This bidirectional logic level converter can be used with normal series, I2C, SPI and other digital signals. It does not work with an analog signal.
It is very easy to use. The card must be powered from the two voltages (high and low voltage) used by the system.
A high voltage (5 V for example) to the pin "HV", low voltage (3.3 V for example) in "LV", and the system ground to pin "GND". TTL Converter Module 5V - 3.3V Bidirectional 2 Channel I2C Logic Level features:
- 2 high voltage channels and low voltage logic logic for bidirectional translation
- 2 low voltage channels High voltage high voltage logic in unidirectional conversion
- The board module is compatible, it can be inserted directly in the use test panel
- HV to 5 V power

This little board is great for any type of prototyping - enables troubleshooting and debugging of any board with voltage from 0 to 5.5V. The  board interprets the commands and sends them further via a proper protocol (ranging from UART through I2C up to HDD44780 LCD). The Pirate lets analyze as well the data sent back from the device to the computer terminal effectively allowing to decipher potential errors. The bootloader installed on the board enables the quick and easy update of firmware and changing the functionality of the board.

This board features PIC24FJ64 and FT232RL USB-to-serial chip enabling swift communication over the mini-B USB port. On the other end of the board 2x5 pin header is placed with detailed descriptions of each pin.

Connecting a 3.3V device to a 5V system is a challenge.
The bidirectional logic level converter is a small device that safely drops the signals from 5V to 3.3V and increases 3.3V to 5V at the same time.
This level converter also works with 2.8V and 1.8V devices. What really separates this logic level converter from our previous versions is that it can successfully set its high and low voltages and go up and down between them safely on the same channel.
Each level converter has the ability to convert 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side. The level converter is very easy to use. The board needs to be powered from the two sources of voltage (high voltage and low voltage) that your system is using.

A multiplexer of this type actually only acts as a switch 16 to a 1.
The 4 digital pins are used to set high or low, (binary Y0-Y15) to determine which input pin is connected to pin "Z".
The control input S0-S3 is set to low "logic level 0", the signal C0 is connected to the output Z. Multiplexer 16 Channels CD74HC4067 MUX/DEMUX features:
- Based on chip CD74HC4067
- Analog signal input: Y0-Y15, 16 channels
- Analog signal output: Z pin
- Digital input, channel control: S0-S3
- Module size: approx. 4 x 1.8cm
- Package includes:
* 1 x CD74HC4067 MUX connection module
* 2 x row of soldering pins

Mini RS232 to TTL Adapter Max3232 Converter features:
- Converter for RS232 to TTL levels
- MAX3232CSE chip
- Voltage: 3V a 5V
- Speed: no more than 120kbps
- Dimensions: 16x9mm

3.3V/5V I2C logic level converter module with soldering pins.
Ideal to connect a device that works at 3.3V to one that works with 5V.
It works with digital signals (high and low levels).
Logic Level Converter 3.3 / 5V I2C IIC features:
- Voltage: 3.3V/5V
- Measures: 1.5x 1 cm

Descripción:
El adaptador de HDMI a VGA le permite conectar un monitor, proyector o LCD analógico estándar que usa un conector o cable VGA a un cuaderno, DVD, TVbox, reproductor BIU-rog, computadora, proyector.
Característica:
- Tipo: adaptador/convertidor AV,
- Conector A: HDMI macho,
- Conector B: VGA hembra,
- Conexión Split / Duplicación: ninguna (1: 1),
- El adaptador dispone de una entrada audio Jack hembra,
- Ancho del cable del adaptador: 15cm,
- Incluye un cable audio Jack macho de ambos lados,
- Ancho del cable audio: 52cm,
- Color: blanco.

An RS232 serial port to your PC through the USB port USB 2.0 A Serial Port Cable Adapter DB9 RS232 Series features:
- CH341 driver
- Supported OS: WinME, Win2003, Win XP, Vista, Win 7, Linux, MAC OS9.0/OSX
- High quality, shielded cable
- Power and data in the same cable, does not require more adapters
- Compatible USB interface 1.1 and 2.0
- Support up to 1 mega data transfer
- Length 73cm The adapter allows you to connect a computer with: - Electric meters
- Decoders, programmers
- Cash registers
- Satellite TV
- Control panels
- Mobile phones
- Diagnostic interfaces for cars
- The administration of Cisco routers

Ideal for connecting TTL RS232 devices to your PC through the USB port. CP2102 USB 2.0 A RS232 Converter UART TTL Serial features:
- Controller CP2102
- 5 pins: 3.3v, 5.0v, TxR, RxD, GND
- Standard USB type to male and 5 pin TTL connector
- 3 Status LEDs: Power, RX and TX
- USB 2.0 specification with 12Mbps maximum speed

Standard ISP download port, for on-line programming. Built-in crystal oscillator circuit (8MHz), crystal are replaceable. Has reset push button, power reset push button.