Im going to use AS5048B (I2C version) sensor
to control position of servomotor (total 5 of sensors for 5 motors). Im starting with PCB project and im want to confirm something.
1. Does this chip can store data written to it (for example Slave address, programmable 0 position) even if power is cut off? Because i want to power it from external 5v, but if I'll have to write data every time i power it up i will consider using 3.3v button battery
2. A1 and A2 inputs. From what i understand they are simply hardware pins to set last two bits of Slave address? By default its 10000XX so if i set A2 and A1 as low the slave address of sensor will be 10000(0)(0) and if i pull them up it will be 10000(1)(1)? If yes, can i just connect them to GND (or VCC) to make them permanently in low or high state? (ill use bits 5,4,3 to write different slave addresses for 5 sensors)
3. PWM output, i think i didnt found anything in datasheet about it, but im not gonna use it, do you think i can leave it floating?
The sensors will be placed on motors, and will be connected to MCU that will be like 10-15 cm away from them so i want to minimise amount of wires going from sensors to MCU.
My schematic so far
(SCL and SDA will be connected to resistors on board where MCU will be)
Thank you kindly in advance for any help.