Using the Pololu Pushbutton Power Switch : 3 Steps - Instructables

Pololu Pushbutton Power Switch SV 4.5-20V (Standard Voltage)

Pololu Pushbutton Power Switch - Arduino reading the button

Pololu - Mini Pushbutton Power Switch with Reverse Voltage

DIY Line Following Robot « Adafruit Industries – Makers, hackers

Home Assistant MQTT Battery Operated Wireless Water Sensor - Share

The Pololu Pushbutton Power Switches are sophisticated power control alternatives to bulky mechanical switches. The main function is pushbutton-based

Mini Pushbutton Power Switch with Reverse Voltage Protection, LV

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The DIY Arduino datalogger with low power shut down capability

EasyDriver Stepper Motor Driver - ROB-10267 - SparkFun Electronics