Please help me figure out the connection in this diagram. The picture shows a fitness tracker. The question is: 1. What is the designation near the u11 chip (marked in gray)? 2. How can these three parts of the electrical circuit be connected so that there are no "flying in the air" elements? The circuit itself has an oxygen saturation sensor (u4), an accelerometer(u11), a body temperature sensor (u1), a microcontroller, and a convector. How do I connect the sensor unit to the charging unit correctly?

 

Please help me figure out the connection in this diagram. The picture shows a fitness tracker. The question is: 1. What is the designation near the u11 chip (marked in gray)? 2. How can these three parts of the electrical circuit be connected so that there are no "flying in the air" elements?

These pins are used for I2C communication only if required clk, data and address. If not required may be you can make it NC(not connected)

mpu

 

Hi shilinie,
clk is the Clock signal XCL, when using the I2C option

E

 

What is clk?

Clk is used for synchronous communication which is generated by the microcontroller.

 

Hi shilinie.
You MUST use English text.

Moderation.

 

Hi shilinie.
You MUST use English text.

Moderation.

and how will it be correct to connect an accelerometer, a temperature sensor, a blood oxygen saturation sensor, to a microcontroller, in the case if it will not be a module but just a sensor on one PCB (together with other elements on one PCB)? Do I understand correctly that the MPU6050 module is a sensor with its wiring elements?

 

you can check if your understanding is correct by reading datasheets

 

I am guessing that the Thread Starter is wanting to produce an assembly similar to what is presented in the circuit schematic. I advise that even if the TS did possess a perfect assembly of that circuit, that there is required a great deal of software code to provide any useful function.