Optical Isolated Converter FT232RL USB 2.0 to RS485

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

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.

Ideal for connecting TTL RS232 devices to your PC through the USB port. PL2303HX PL2303 USB to UART TTL Cable Module RS232 Converter 4 Pin features:
- Compatible controller PL2303HXA
- 4 pins: 5.0V (red), TxR (green), RxD (white), GND (black)
- 2.5A self-recovery protective fuse
- Supported OS: Win8, Win10, WinME, Win2003, Win XP, Vista, Win 7 The 64-bit Prolific drivers provided by Microsoft through Windows Update will not work with most adapters and will therefore generate the generic "Code 10" error.

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

The ADS1115 is an external 16-bit ADC + a built-in programmable gain amplifier (or PGA), which can be very useful for certain Arduino and ESP8266 projects. This is ideal when more resolution or more analogue pins are required. You get better accuracy, as well as relieving the processor of this burden.

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. 

This converter has internal DC/DC power supply and full isolation between USB and RS485 output and enables to establish reliable and secure communication. It adopts the original FT232RNL and SP485EEN chip solution, provides stable communication with built-in galvanic isolation, lightning protection and anti-electrostatic protection, etc., it is an ideal choice for industrial control equipment and/or applications with high communication requirements.

A standard IEEE1284 DB25 parallel port to your PC via the USB port. Transmission speed reaches 12 Mbps. This cable is "USB Printing Support" port and not Parallel "LPT Printer Port" 

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

6-pin/10-pin Kanda DIL adapter features:
- Connector for Usbasp Programmer AVR Atmega8 Atmega128