2 layers32 × 60 mm

BioAmp v1.5
upsidedownlabs/BioAmp-v1.5
Upside Down Lab's Biopotential Amplifier v1.5 - Buy on Tindie at https://bit.ly/BioAmp-v1_5
34 parts42
KiCad boards from 5 GitHub repositories tagged “upsidedownlabs”, the most starred first; open any of them in PCBKit.

upsidedownlabs/BioAmp-v1.5
Upside Down Lab's Biopotential Amplifier v1.5 - Buy on Tindie at https://bit.ly/BioAmp-v1_5

upsidedownlabs/MSP430-Breadstick
Texas Instrument MSP430G2553 based development board.

upsidedownlabs/ADS1292R-Breakout
Upside Down Lab's ADS1292R breakout board for ECG & Respiration.

upsidedownlabs/TXB0108
Upside Down Lab's TXB0108 8-Bit Bidirectional Voltage-Level Translator with Auto-Direction Sensing and ±15-kV ESD Protection.

upsidedownlabs/MSP430G2553-Feather
MSP430G2553 based Adafruit feather compatible board 🪶

upsidedownlabs/MSP430-Breadstick
Texas Instrument MSP430G2553 based development board.