Attendance Device PCB and HMI Design

PCB Designer Needed – Attendance Device

Need an experienced PCB designer for an attendance device.

Main Components

- STM32 Blue Pill (STM32F103)
- 7" DWIN HMI
- Fingerprint sensor
- Ethernet (LAN) port
- RTC
- Micro SD card reader
- DC barrel jack power input
- Power regulation circuitry
- Voltage divider circuits
- GPIO expansion headers

Detailed BOM and component list will be provided.

Scope

- Schematic design
- PCB layout and routing
- Manufacturing-ready Gerber files
- Design review and prototype support
- DWIN screen UI/page design and configuration
- Work with us during firmware development and testing to resolve hardware/software integration issues
- Support board bring-up until major functions are operational

Responsibilities

- You will be responsible for PCB design and DWIN HMI development/configuration.
- We will handle the STM32 firmware implementation.
- Coordination will be required to define communication protocols and ensure smooth integration between the STM32 firmware and DWIN interface.

Deliverables

- Schematic files
- PCB design files
- Gerbers
- Pick & Place files
- Assembly drawings
- DWIN project/source files
- Final BOM documentation

When Applying

Please share:

- Similar STM32-based projects
- Experience with DWIN HMI design
- PCB software used (Altium, KiCad, EasyEDA, etc.)
- Cost and timeline
- Availability for post-design support

This is not a design-and-forget project. We need someone willing to collaborate through prototype testing and firmware integration.