A compact PCB for converting between RS232 and TTL-level UART signals in embedded robotics systems.

Overview

This board provides a small hardware interface for serial communication between devices that expose different voltage levels. It is intended for integration work where reliable, compact wiring matters as much as the software interface.

3D render of the RS232-to-TTL converter PCB
3D board render used to inspect component placement and connector orientation.

Design Goals

  • convert between RS232 and TTL UART signal levels
  • expose clearly labeled power and signal connections
  • keep the layout compact for vehicle or bench-test integration
  • make debugging easier with accessible RX/TX/GND/+5V interfaces

PCB Layout

The layout keeps the main serial paths readable and the connector labels visible, which helps during integration and troubleshooting. Separate pads and headers make it possible to probe the UART lines without disturbing the main harness.

PCB layout for an RS232-to-TTL converter with labeled TX, RX, GND, and voltage nets
PCB layout with labeled serial, power, and ground connections.

Technologies

KiCad, PCB layout, UART, RS232, TTL logic levels, embedded hardware integration.