The input waveform in front of C44 is a sine wave of about tens to hundreds of mV. After being amplified by the first op amp, it enters the second op amp U7B, where it is still amplified and then conv
PCB modular layout ideasIn the face of today's electronic products with increasingly higher hardware platform integration and increasingly complex systems, PCB layout should have a modular mindset, re
Has anyone used Maxim's max30003 to detect ECG signals?
I use nRF52832 to drive max30003 SPI communication is normal, and the verification is correct by reading the values of other registers that have
Because of a small problem, it took a long time to record it.
stm32 multiple adc cores use timer trigger, data is only updated once in dma mode
HAL_ADC_ConvCpltCallback also only enters once
ADC is se