From Analog Front End to Fabrication Files on an STM32F411 PPG PCB
A two-layer KiCad design connecting SFH7070 sensors, OPA2333 front ends, STM32F411, and a complete Gerber package.
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STM32 Sensor Acquisition
Follows a NUCLEO-F411RE ECG/PPG prototype from its circuits through ADC, TIM1, USART2, CMSIS-DSP, and peak/HRV calculation.
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Sources, tools, and prerequisites
- Tools
- STM32F411, STM32CubeIDE, CMSIS-DSP
- Sources
- STM setup deck; KiCad schematic; CubeIDE ECG archive; saved firmware
- Prerequisites
- clock, gpio