Main components

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Part NumberDescription
LD1117S33TR_SOT223800mA Fixed Low Drop Positive Voltage Regulator, Fixed Output 3.3V, SOT-223
LM311
4N25DC Optocoupler Base Connected, Vce 30V, CTR 20%, Viso 2500V, DIP6
LOGO
LMH6643
MAX4392
4053
LM1881
ESP32-S3-WROOM
74HC2448-bit Buffer/Line Driver 3-state

vm129 cpu schematic

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vm129 cpu board layout