STM32 IoT PCB & Firmware
Budget: ₹400 – ₹750 INR
I’m building an IoT device around an STM32 microcontroller and need the complete hardware-plus-software package brought to life. The board must expose SPI, UART and I2C so I can hook in sensors and a radio module later, and all routing should follow good signal-integrity and low-power practices typical for connected products.
You’ll start with the schematic, translate that into a compact multilayer PCB layout, then generate Gerbers ready for production. On the firmware side, clean, well-documented C code that compiles in STM32CubeIDE (or a comparable GCC toolchain) is essential; feel free to leverage HAL, LL drivers or FreeRTOS if it simplifies maintenance. Make sure every peripheral pinout matches the final PCB and provide a simple test routine that proves SPI, UART and I2C traffic on power-up.
Deliverables
• Schematic (source + PDF)
• PCB layout files and Gerbers
• Complete BOM with manufacturer part numbers
• Production-ready firmware source and binaries
• Brief bring-up guide and inline code documentation
Acceptance criteria will be the firmware compiling without errors and successfully echoing data over all three interfaces on a manufactured board. Let me know your preferred CAD stack (Altium, KiCad, Eagle, etc.) and any questions before we begin so we can lock the pinout early.
You’ll start with the schematic, translate that into a compact multilayer PCB layout, then generate Gerbers ready for production. On the firmware side, clean, well-documented C code that compiles in STM32CubeIDE (or a comparable GCC toolchain) is essential; feel free to leverage HAL, LL drivers or FreeRTOS if it simplifies maintenance. Make sure every peripheral pinout matches the final PCB and provide a simple test routine that proves SPI, UART and I2C traffic on power-up.
Deliverables
• Schematic (source + PDF)
• PCB layout files and Gerbers
• Complete BOM with manufacturer part numbers
• Production-ready firmware source and binaries
• Brief bring-up guide and inline code documentation
Acceptance criteria will be the firmware compiling without errors and successfully echoing data over all three interfaces on a manufactured board. Let me know your preferred CAD stack (Altium, KiCad, Eagle, etc.) and any questions before we begin so we can lock the pinout early.