I will design rs485 modbus sensor interface pcb and embedded controller
PCB Design, Embedded Systems and Firmware Development
About this Gig
HELLO AND WELCOME!
Industrial sensor systems require reliable communication between field devices, controllers, and monitoring equipment. I design custom RS485 Modbus sensor interface PCBs and embedded controllers for industrial automation, data acquisition, instrumentation, IoT, and connected sensing applications.
What I will provide:
- Custom RS485 Modbus RTU interface architecture and schematic
- Sensor input and connector integration
- MCU-based embedded controller design
- RS485 transceiver, termination, biasing and protection circuitry
- Power supply, regulation and ESD protection design
- PCB layout with component placement and routing optimization
- BOM, Gerber, drill files and complete design documentation
Why Clients Choose Me:
- Practical PCB and embedded systems engineering
- Strong RS485 and Modbus communication knowledge
- Hardware and firmware designed together
- Clean, scalable and production-focused PCB architecture
- Professional technical communication.
I can work from your sensor datasheet, Modbus register map, MCU preference, reference schematic or system requirements.
Send your requirements and let's develop a reliable RS485 Modbus sensor controller around your application.
FAQ
Can you design a custom RS485 Modbus sensor interface PCB?
Yes. I can design custom RS485 Modbus RTU interfaces for industrial sensors, meters, controllers, and data acquisition systems.
Can you integrate an STM32 microcontroller?
Yes. I can integrate STM32 MCU hardware and develop the required embedded firmware for RS485 and Modbus communication.
What information do you need to start?
Please provide the sensor datasheet, Modbus register map, power requirements, MCU preference, PCB dimensions, connectors, and required functionality.
Can you work with existing schematics or reference designs?
Yes. You can provide an existing schematic, reference PCB, datasheet, or previous design for modification, optimization, or redesign.
Can you design multiple sensor interfaces?
Yes. I can design systems supporting multiple RS485/Modbus sensors, subject to the MCU, communication architecture, power, and PCB requirements.

