Power-on circuit from vibration switch

[darkcastle]

Sorry if this has been asked before. I am trying to figure out a good way of turning on a microcontroller with vibration for a low power / battery operated application. I came across some cheap switches like SW-18020P, which has different sensitivities. Could be used as an input to some kind of latching power circuit? It would need to allow the MCU enough time to keep the latch on or some or enable pin, then it would be able to turn itself. Perhaps the circuit could also allow for the MCU to check if it is still being vibrated. I did some searching, but I did not really find a good example, but there are probably some out there...

[Zbig]

With today's MCUs with super-low power sleep states, there's rarely a need to completely power them off, really. Just let it sleep and wake it up with external interrupt.

[Ammar]

Agree with Zbig. Something like a PIC10F322 or something from the MSP430 range would likely be suitable.

[darkcastle]

I am using an esp8266 wifi / MCU I am not sure if the sleep state would be considered super low. I don't really want to add another MCU for turning it on if I don't need to. I was inspired by the EEblog youtube video on soft power up, but I am not sure if it would really work well for this application.