There are many options to choose from for this part. You can obviously use any serial terminal (e.g. TeraTerm) or even the simple Arduino Serial Monitor or whichever you prefer. Arduino Serial Monitor Open the plastic case (twist the USB connector and then evenly pull apart the plastic case) and change the red wire termination from the pad marked 5V or 3V3. Supports the following Windows OS The practical LAB of this tutorial is going to be a simple PC-Controlled embedded system. Which means a computer software is involved (for the PC) as long as a firmware code (for the Microcontroller). Computer Software

FTDI Chip TTL-232RG-VIP-WE (RS 715-8513) includes voltage reference for setting UART signalling levels

Product Range Selector (FT232R)

Electromagnetic Interference: A strong electromagnetic interference environment may affect the normal operation of the chip, causing performance problems or even damage.

Open the MPLAB IDE and create a new project name it “PC_Control_USB-TTL”. If you have some issues doing so, you can always refer to the previous tutorial using the link below. Having the ability to do so, will help you debug your code, provide visual UX for your projects, and much more. Simply put, the CH340 driver is a piece of software that connects the CH340 chip with the computer to facilitate the chip’s communication with the PC. Q2. How do I test my CH340 driver? Hereafter, we’ll hook that converter to our bare PIC microcontroller and send some data using our Serial.print() function aka UART_TX() Integrated 1024 bit internal EEPROM for I/O configuration and storing USB VID, PID, serial number and product description strings.

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PL-2303 is exclusively designed for mobile and embedded solutions in mind, providing a small footprint that could easily fit into any small PCB layouts. With very small power consumption in either operating or suspend mode. Wiring up this schematic on a breadboard should be an easy task. Just upload your firmware hex file to the microcontroller chip. And Open any serial terminal on your PC (the simplest way is to use the Arduino’s serial monitor). Make sure to set the baud rate to 9600 bps. You can also use my old custom-made serial monitor. And here is a video for the final output of this LAB. Red - power. This pin provides up to 500mA current. YOU MUST NOT use other power supplies if you choose to power the target device with this Adaptor. D2XX driver: The PC side will be recognized as a USB port and needs to be operated using API functions.

After successful driver installation, the USB-TTL module should take a random COM port identifier as shown in the image down below. Since 5 V is a voltage which is also suitable for a lot of low to medium power (up to a couple of Watt) electronics it was choosen to be used for USB as well. Note that the supply of USB is 5 V, the data signals use a lower voltage.Later that 5 V supply was used in almost any computer as computers are made using logic chips which need 5 V, at least the TTL ones. Even as TTL was replaced by CMOS logic large parts of computer electronics still used 5 V even though CMOS could also run on lower voltages. On the other hand, the serial ports provide a convenient way to shift out your data from the RAM to another device that can display it (e.g. Desktop, Laptop, Serial LCDs, etc). And that’s what we’re going to do in this tutorial. The Arduinos have their on-board USB-TTL UART converters so they don’t usually run into the process of hooking this external module. There is also an Update Now button if you wish to get only the CH340 driver updated. However, it is recommended to update all old drivers to ensure top-notch computer performance.

The fact that both TTL and USB are based around a 5 V supply is more due to history, TTL is older and it needed 5 V due to available transistor technology (in the 1960s). FT232 UART UART Board is a UART module that converts the USB interface to the TTL level. This module enables data communication by connecting the USB interface of a computer or other device to TTL logic-level devices such as microcontrollers, sensors, etc.This product provides a VCP example, so we will only discuss the installation of the VCP driver below. FTDI drivers are available for Windows CE 4.2-5.2, 6.0/7.0 and 2013. Support for older versions of Windows Desktop Search automatically for updated driver software on Windows 10. On Windows 11, Search automatically for drivers.