ICs
ESP32
https://github.com/lpodkalicki/eagle-libraries/blob/master/ics/esp32.lbr
AMS1117/REG1117/LM1117
https://github.com/lpodkalicki/eagle-libraries/blob/master/transistors/lm1117.lbr
LM35
https://github.com/lpodkalicki/eagle-libraries/blob/master/ics/lm35.lbr
Connectors
DB9
https://github.com/lpodkalicki/eagle-libraries/blob/master/connectors/SparkFun-Connectors.lbr