So the previous two questions could be found here: ESP8266 computtion error and ESP8266 not working with MPU 6050 over wire library and I2C
However, it was not resolved, and with updates and debugs, I'm going to delete them later and summarize in this single post.
An ESP8266 CP2102 ESP-12E was trying to access MPU 6050. However, it's not working.
You can see the diagram picture. I tried pairs of pull up resistor from 0 to 100 k(the one used in the picture was standard 4.7 k).
Many MPU 6050s have been attempted and tested. They were working, and you can see in the picture, the green light lighted up.
Different ESP 8266 -12E from two different brands have been attempted, both have the same issue.
Various of version of board manager has also been attempted.
Different wires have been attempted. The I2C bus in the graph are twisted wires.
The adjustment of the program has also been attempted. Eventually, an online version of code was attempted, and not working.
The power supply was ruled out through the usage of power board, capacitors, and external power sources. The issue persisted.
Wire library pins, frequencies, have been checked as correct. As well as constant restart of IDE and hardware.
Different bread boards and have also been attempted, the issue persisted.
The above attempts all resulted failure. Could you help me to figure out why ESP 8266 does not work with MPU 6050 over I2C?