2 layers85 × 55 mm
Final schematics
shreenandansonu/Electronic-Stethescope
EKOBIT is an electronics stethoscope, a AFE signal board for a digital stethoscope.
59 parts3MIT
Analog front end
9 boardsKiCad boards from 5 GitHub repositories tagged “analog-front-end”, the most starred first; open any of them in PCBKit.
- 4 layers100 × 100 mm
AFE
Blaze-Pascal/Masters-Multi-Channel_DAQ
Custom 2-channel digital oscilloscope DAQ with 20MHz bandwidth. Built with a custom KiCad analog front-end (AFE) PCB, Gowin FPGA (Tang Nano 9K) for high-speed signal buffering (VHDL), and an RPi Pico MCU for SCPI-like…
216 parts2GPL-3.0 - 2 layers100 × 80 mm
G474 Integrated Analyzer
Larryhul/periodic-signal-analyzer
STM32G474 periodic signal analyzer: FFT harmonic measurement (Upp/Urms/fundamental/spectrum), OPA2365 front end, KiCad PCB, firmware & dashboard. 2026 Shanghai electronic design contest, Problem G. 周期信号测量分析装置
64 partsMIT - 2 layers78 × 99.5 mm
Precision AFE ESP32
LemonAidLee/Precision-Analog-Front-End
A highly precise, ±100 mV analog front-end (AFE) designed for the ESP32 and ADS1115. Features a 4-stage TL082 architecture including a Sallen-Key low-pass filter, delivering 9.4 µV/LSB resolution for precision data…
29 partsCERN-OHL-P-2.0 - 2 layers50 × 32 mm
Unipa bioamp pro
Mustafa-Yagci/unipa-bioamp-pro
Precision Biopotential Analog Front-End (AFE) for ECG/EMG/EEG | CMRR >100 dB | Driven Right Leg (DRL) Active Feedback | KiCad 8 & Production Gerbers
27 partsMIT - 2 layers40 × 40 mm
Final schematics
shreenandansonu/Electronic-Stethescope
EKOBIT is an electronics stethoscope, a AFE signal board for a digital stethoscope.
54 parts3MIT - 4 layers50 × 26 mm
PSU
Blaze-Pascal/Masters-Multi-Channel_DAQ
Custom 2-channel digital oscilloscope DAQ with 20MHz bandwidth. Built with a custom KiCad analog front-end (AFE) PCB, Gowin FPGA (Tang Nano 9K) for high-speed signal buffering (VHDL), and an RPi Pico MCU for SCPI-like…
29 parts2GPL-3.0 - 4 layers167 × 92 mm
作业三b NTC数字温度计 底板预览
Larryhul/periodic-signal-analyzer
STM32G474 periodic signal analyzer: FFT harmonic measurement (Upp/Urms/fundamental/spectrum), OPA2365 front end, KiCad PCB, firmware & dashboard. 2026 Shanghai electronic design contest, Problem G. 周期信号测量分析装置
25 partsMIT - 2 layers160 × 89.5 mm
KiCad工程
Larryhul/periodic-signal-analyzer
STM32G474 periodic signal analyzer: FFT harmonic measurement (Upp/Urms/fundamental/spectrum), OPA2365 front end, KiCad PCB, firmware & dashboard. 2026 Shanghai electronic design contest, Problem G. 周期信号测量分析装置
10 partsMIT