Multiplexer 16 Channels CD74HC4067 MUX/DEMUX

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

With KANDA adapter it is ideal for projects with ARDUINO. Characteristic: - AVR 5V / 3.3V microcontrollers - programming voltage change through jumper JP1
- Status LED indicators
- Transmission speed: 5kB / s
- Protective fuse of possible damage to the USB port
- Supported OS: Win ME, Win XP, Vista, Win 7, Win8, Linux
- Works with Bascom, Eclipse, WINAVR, avrDUDE, ARDUINO IDE, ATMEL STUDIO The programmer is compatible with most AVR Atmel processors: - MEGA series 8,16,32,64,218 € ¦
- Tiny series: ATtiny10, ATtiny11, ATtiny12, ATtiny13, ATtiny13A, ATtiny € 15 ¦
- CAN series: AT90CAN32, AT90CAN64, AT90CAN128 € ¦
- AT90S2313 series, AT90S2323, AT90S144, AT90S1434 ¦

Ideal for connecting TTL RS232 devices to your PC through the USB port. USB to A RS232 UART TTL 5V Converter + Cables features:
- Compatible controller PL2303HX
- 5 pins: 3.3v, 5.0v, TXR, RDX, GND
- Heat shrinkable insulating cover
- LED indicators of data transmission
- 2.5A self-recovery protective fuse
- Supported OS: WinME, Win2003, Win XP, Vista, Win 7, Linux
- Weight: 40 gr. (approx.)

CP2102 USB 2.0 to RS232 RS485 TTL 3.3V 5V converter features:
- Ideal for connecting TTL RS232 RS485 devices to your PC through the USB port

This product is widely used in radio modifications, cell phone flash, xbox360 flash detection, GPS, car, Flash, HDD repair, top box upgrade.
It can be used to download MCU types. Module MAX3232 Converter RS232 to TTL Port DB9 female features:
- Input voltage: 3.3 - 5 VDC
- Multi-channel RS232 controller / receiver MAX3232
- Transmission / reception speed up to 250 kbit / s
- DB9 serial port
- Interface with four pins:
       - TX: transmission signal
       - RX: reception signal
       - VCC: Supply voltage
       - GND: connects the power cathode
- Operating temperature: -65 ° C - + 150 ° C
- UART communication
- Includes a 4-wire female / female connector for easy connection with the arduino

This is a CH340G TTL UART 5V serial adapter, designed to allow adding a USB connection to your project.
In addition, this opens up the possibility of programming microcontrollers like the Arduino Pro mini.
This module allows you to connect your project, from programming small microcontrollers to a custom computer keyboard.
The module is ready for use of a UART connection.
This may require the installation of a driver; however, it is a standard driver distributed by Microsoft Windows Update, available in Linux and that can be configured in MAC OS.
Adapter module CH340G LC Technology -TTL UART 5V series features:
- Manufacturer: LC Technology,
- Communication chipset: CH340G
- Communication: UART,
- Pin connection:

Converter Module RS485 a Transceiver TTL 485 Max485 5V PLC features:
- Working voltage and TTL levels: 5V
- Size: 44 x 14 mm

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.

TTL level conversion module 5V 3.3V IO Single Interchange Compatible I2C SPI.
Use of high-speed dual-level IT supply level translator chip design. TTL Level Converter 5V - 3.3V IO LJ245A features:
- Main chip: Octal bus transceiver and change from 3.3-V to 5-V with outputs of 3 states LJ245A of Texas Instrument
- VCCA power supply voltage: 4.5 - 5.5 VDC
- VCCB power supply voltage: 2.7 - 3.6 VDC
- Low level input voltage V (IL): 0.8 V
- High-level input voltage V (IH): 2 V
- Low level output current I (OL): 12 - 24 mA
- High level output current I (OH): -24 - -12 mA
- 8 channels allow the conversion of the IO communication level
- Channel levels A and B are controlled by VCCA and VCCB

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