https://randomnerdtutorials.com/latching-power-switch-circuit-auto-power-off-circuit-esp32-esp8266-arduino/
Sep 11, 2019 - Learn how to build a Latching Power Switch Circuit (Auto Power Off Circuit), that you can use to power off the ESP32, ESP8266, Arduino, or any microcontroller.
power switchlatchingcircuitautorandom
https://www.banggood.com/Silver-16mm-LED-Metal-Push-Button-Latching-Switch-LED-HeadLights-Symbol-Push-Button-Switch--p-1294832.html?cur_warehouse=CN&ID=228&rmmds=views-right-viewalsoview
Only US$12.99, buy best silver 16mm led metal push button latching switch led headlights symbol push button switch sale online store at wholesale price.
push buttonlatching switchsilverledmetal