https://docs.platformio.org/en/stable/boards/espressif8266/esp01.html
https://github.com/espressif/arduino-esp32
https://docs.platformio.org/en/stable/boards/espressif32/esp32dev.html
https://github.com/arduino-libraries/WiFi
3.3V -> VC
GND -> GND
RX -> TX
TX -> RX
https://edistechlab.com/esp8266-01-einfach-erklaert/?v=3a52f3c22ed6
Default setup for connecting a FT232 to an ESP-01:
3.3V -> VC
GND -> GND
RX -> TX
TX -> RX
Easiest setup for flashing an ESP-01:
VCC -> 10k resistor -> CHPD
GND -> GPO (Flashmode)
GND -> RST (Reset)
monitor_speed = 115800
Initializing sensors
monitor_speed = 74880
load 0x4010f000, len 3424, room 16
tail 0
chksum 0x2e
load 0x3fff20b8, len 40, room 8
tail 0
chksum 0x2b
csum 0x2b
v000490b0
~ld
rf cal sector: 124
freq trace enable 0
rf[112] : 0
ets Jan 8 2013,rst cause:4, boot mode:(3,3)
wdt reset
load 0x4010f000, len 3424, room 16
tail 0
chksum 0x2e
load 0x3fff20b8, len 40, room 8
tail 0
chksum 0x2b
csum 0x2b
v00047930
https://www.esp8266.com/viewtopic.php?f=28&t=21249
https://arduino-esp8266.readthedocs.io/en/latest/boards.html#boot-messages-and-modes
https://arduino-esp8266.readthedocs.io/en/3.0.1/faq/a02-my-esp-crashes.html
https://www.mikrocontroller.net/topic/413744
https://www.mikrocontroller.net/topic/408026#new
https://forum.arduino.cc/t/watchdog-error/656667/29
https://randomnerdtutorials.com/esp32-mpu-6050-accelerometer-gyroscope-arduino/
https://wolles-elektronikkiste.de/i2c-schnittstellen-des-esp32-nutzen
https://wolles-elektronikkiste.de/mpu6050-beschleunigungssensor-und-gyroskop