v4.1.1

• Update VBUS divider to increase voltage so USB voltage will always wake ESP32 from sleep (Can no longer measure voltage with ADC, use digital input instead to tell if USB is connected or not)
• Remove stray via in pad after supplier DFM (final Gerber attached)

v4

• Add 10k pull-up to IO0 pin to fix issue where board would enter bootloader instead of app when first connecting battery

v3.1

BOM only fixes

• Change flash memory part to improve write speed
• Change VBUS divider to prevent saturation

v3

• Change microcontroller to ESP32-S2 (larger code size, better USB firmware upload)
• Change to USB-C connector
• Change accelerometer to KXTJ3-1057 (shortage of old IC)

v2

Small update to PCB

• change USB micro connector
• add JCLPCB part numbers for assembly