Main components

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Part NumberDescription
NCP718-LDO_Regulator
TLV62569DBVHigh Efficiency Synchronous Buck Converter, Adjustable Output 0.6V-5.5V, 2A, SOT-23-5
MIC5504-3.3YM5
LM2903
STM32F103CBTxARM Cortex-M3 MCU, 64/128KB flash, 20KB RAM, 72MHz, 2-3.6V, 37 GPIO, LQFP-48
USBLC6-2SC6Very low capacitance ESD protection diode, 2 data-line, SOT-23-6
SRF3216A-Common_Mode_Choke
74HC4017E
74HC04Hex Inverter
74HC4511E
74HCT244
ULN2003
74HC14Hex inverter schmitt trigger

menelaos rev3 schematic

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menelaos rev3 board layout