Signal processing

21 boards

KiCad boards from 12 GitHub repositories tagged “signal-processing”, the most starred first; open any of them in PCBKit.

2 layers31.1 × 66.2 mm
Video if ql vga
holmatic/video_if_ql_vga
Video-to-VGA converter for Sinclair QL
16 parts35GPL-3.0
2 layers61.3 × 89.6 mm
QuakeGuard PCB
GiZano/QuakeGuard
Distributed Earthquake Early Warning (EEW) system built on low-cost ESP32-C3 IoT sensors with Zero-Trust security, multi-node epicenter triangulation, and on-premise AI emergency reports.
17 parts24AGPL-3.0
2 layers155 × 95 mm
Carte v1
PolyCortex/AcquisitionEEG2020
EEG Acquisition board software, PCB design files and documentation.
170 parts10
2 layers161.2 × 29.5 mm
ROV-
IslamHUFE/ECG

57 parts1MIT
2 layers48.7 × 22.5 mm
Airsticks pcb
lizboyer/Airsticks
Airsticks was a project by myself (Elizabeth Boyer), Christian Tchilikov, and Dearborn Plys. It uses accelerometers, a speaker, an STM32 MCU, and a board we created.
69 parts1
2 layers66.5 × 34 mm
RealKHNbiquad
ryanromeodev/hsb-amcd-sose2025-5
Designed and tested a universal biquad filter, comparing theoretical and practical performance across multiple platforms
14 parts1Apache-2.0
4 layers68.8 × 68.6 mm
GMWM Analysis Board
thejamesrhodes/IMU-Quantisation-research-project
Research into quantisation effects in MEMS gyroscopes using custom STM32 hardware.
163 parts1MIT
2 layers52.3 × 75 mm
Tactileskin
aidanmohammed-ali/Tactile-Skin
A high-resolution, low-power capacitive tactile sensing technology optimised for use in wearable devices, robotics and healthcare.
16 parts
2 layers113.3 × 84.4 mm
Signal Conditioner R3
DanMartins/Signal_Conditioner
PCB signal conditioner implemented using KiCAD
41 partsGPL-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 layers70 × 50 mm
RPI4B Dual SPH0645 RevA
notgate/sph0645f_asr
Dual-SPH0645 Raspberry Pi prototype with audio capture, FFT signal processing, PCB design, and offline LLM inference.
20 parts
2 layers50 × 36 mm
Preamp v2
nyquist-labs/projects
432 electrical-engineering projects by Anna Lin: predict from theory, measure by simulation or real data, compare, explain.
24 parts
4 layers78.3 × 42.7 mm
IMU Array ICM-42688-P
thejamesrhodes/IMU-Quantisation-research-project
Research into quantisation effects in MEMS gyroscopes using custom STM32 hardware.
87 parts1MIT
2 layers52.3 × 75 mm
Tactileskin
aidanmohammed-ali/Tactile-Skin
A high-resolution, low-power capacitive tactile sensing technology optimised for use in wearable devices, robotics and healthcare.
16 parts
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
2 layers22 × 18 mm
I2c temp breakout
nyquist-labs/projects
432 electrical-engineering projects by Anna Lin: predict from theory, measure by simulation or real data, compare, explain.
8 parts
2 layers44 × 32 mm
Lm317 5v psu
nyquist-labs/projects
432 electrical-engineering projects by Anna Lin: predict from theory, measure by simulation or real data, compare, explain.
14 parts
2 layers50 × 36 mm
Preamp
nyquist-labs/projects
432 electrical-engineering projects by Anna Lin: predict from theory, measure by simulation or real data, compare, explain.
22 parts
2 layers50 × 20 mm
Rf thru 50ohm
nyquist-labs/projects
432 electrical-engineering projects by Anna Lin: predict from theory, measure by simulation or real data, compare, explain.
2 parts
2 layers68.6 × 53.3 mm
Uno shield
nyquist-labs/projects
432 electrical-engineering projects by Anna Lin: predict from theory, measure by simulation or real data, compare, explain.
16 parts