Prototype was soldered! 

• ✓ ESP32 flashing and Serial works
• ✓ Pressure Sensor works
• ✓ BMX160 works
• ✓ Buzzer Works
• ✓ Debug LED works
• ✓ Battery sense Pin ADC works
• ✓ Battery charging works incl. charging indicator LEDs!
  • except that the LEDs are glimming if the LDO is disabled
• ❌ forgot to add GPIO0 to a button which was needed for flashing. 
  • was able to patch it with a cable and disconnecting the btn1 button
• ❌ SD-Card is connected wrongly! 
  • I use µSD-Card reader but connected the Pins like with default SD-Card. I thought the Pinout is the same but the default SD Card has one extra GND. Can not patch it :( 

All in all I am happy that at least most of the things are working. I have to make new Boards to fix the SD-Card but before I am running more tests.

I am running a battery life-time test. The device is running for 7h+ with one charge being connected to WiFi sending continous data to the cloud. That will be more then sufficient for the use-case. Somehow my code dies at around 35% Battery life which seems a bit weird. Once restarted it runs just fine but now and then stops for no reason. But that might be a different issue because the device stays connected to WiFi and is reachable - just not sure what might causing that.