![I wanted to make my own USB to ttl converter for a nextion display for simhub but I don't understand the difference between the 2 schematics, they use the same chips but I wanted to make my own USB to ttl converter for a nextion display for simhub but I don't understand the difference between the 2 schematics, they use the same chips but](https://preview.redd.it/5vrirmwgumi71.png?width=640&crop=smart&auto=webp&s=be6dca795070391387b1b1f79ee140511bc7114f)
I wanted to make my own USB to ttl converter for a nextion display for simhub but I don't understand the difference between the 2 schematics, they use the same chips but
![Industrial USB TO TTL Converter, Original FT232RL Onboard, Multi Protection Circuits, Multi Systems Support Industrial USB TO TTL Converter, Original FT232RL Onboard, Multi Protection Circuits, Multi Systems Support](https://www.waveshare.com/img/devkit/accBoard/USB-TO-TTL/USB-TO-TTL-3_960.jpg)
Industrial USB TO TTL Converter, Original FT232RL Onboard, Multi Protection Circuits, Multi Systems Support
![Cp2102 Usb 2.0 To Uart Ttl 5pin Connector Module Serial Converter Stc Replace Ft232 Ch340 Pl2303 Cp2102 Micro Usb For Aduino - Integrated Circuits - AliExpress Cp2102 Usb 2.0 To Uart Ttl 5pin Connector Module Serial Converter Stc Replace Ft232 Ch340 Pl2303 Cp2102 Micro Usb For Aduino - Integrated Circuits - AliExpress](https://ae01.alicdn.com/kf/H7a9dee045fea4d68832d9e3e7935e034z/CP2102-USB-2-0-to-UART-TTL-5PIN-Connector-Module-Serial-Converter-STC-Replace-FT232-CH340.jpg_Q90.jpg_.webp)
Cp2102 Usb 2.0 To Uart Ttl 5pin Connector Module Serial Converter Stc Replace Ft232 Ch340 Pl2303 Cp2102 Micro Usb For Aduino - Integrated Circuits - AliExpress
![Industrial USB TO TTL Converter, Original FT232RL Onboard, Multi Protection Circuits, Multi Systems Support Industrial USB TO TTL Converter, Original FT232RL Onboard, Multi Protection Circuits, Multi Systems Support](https://www.waveshare.com/media/catalog/product/cache/1/image/800x800/9df78eab33525d08d6e5fb8d27136e95/u/s/usb-to-ttl-1.jpg)
Industrial USB TO TTL Converter, Original FT232RL Onboard, Multi Protection Circuits, Multi Systems Support
![microcontroller - Is it possible to program a AT89S51 chip with a USB to TTL (UART) converter cable or Arduino? - Electrical Engineering Stack Exchange microcontroller - Is it possible to program a AT89S51 chip with a USB to TTL (UART) converter cable or Arduino? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/nWpeg.gif)