All very cool, but if its real it will be better if main core and bottom will have 4 M3 screws instead of 2, becouse main and bottom cores not fully close together.

Hello. At examples i see function "M5.setWakeupButton(BUTTON_A_PIN);" How i can use it? After "turnOff();" i see at port: "Enabling EXT1 wakeup on pins GPIO39
On deep sleep mode." I try wake up M5 but cant. For what this function M5.setWakeupButton(BUTTON_A_PIN) ?

Im get it. Thanks! Now im succesfull connect it via Wi-Fi to my sensor (sensor=mpu6050+esp12). There are was some problems with UDP connetions but now solve it.

Now its 88 $ ((

Now at Ali i find 2 items at stock, but now its very expensive (80 $) for me (( Some days ago it were cost 33$

At AliExpress i find were some Cores but now it not at stock ((

At this video no link for buy ((