steinie44:
Connect pin 3 to 3.3V not 5v Sorry.
The use of pin 1. I would move pins 1 through 7 up one pin to 2 through 8.
Pins 0 and 1 are used by USB.
Also why are the interrupt lines connected to 4 through 7?
Hi sir,
Now that I am doing the soldering part for sparkfun MPU6050 and I find a very big problem.
Sparkfun breakout board by default is connected to ground, and if I want to use 0x69 i need to desolder the solder bridge between AD0 and GND and solder the AD0 to Vcc. Which mean I cannot connect solely AD0 to multiplexer and my MPU6050 will always be in high (which mean 0x69).
So i am wondering after I solder the AD0 to Vcc on my sparkfun breakout board, can I connect the Vcc to the independent output (Y0,Y1,Y2,Y3) instead of AD0 pin? Then the multiplexer will control the current input to MPU6050 and I only read one mpu6050 at the time?
Thank you everyone for the kindness reply.
My latest way to connect 4 sparkfun MPU6050 is to mux the current input as shown in this :
https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpf1/v/t34.0-12/10601215_10152620418379820_1607617664_n.jpg?oh=50b29d2bb18cbab3da7546da82b0ae35&oe=53F56286&__gda__=1408606551_6572cb1d9f7c1e14aa02df745cd8e15f
I know is not a good way to do it but i cant think of another way to do that. It does connect 4 IMU but something still wrong with the transmission. I will continue to work on this and finally sort everything out.
Switching Vcc ? anything is better than that.
Peter_n:
Switching Vcc ? anything is better than that.
Well for sparkfun breakout board the AD0 pin is a pain in the ass. I cant do the switching between 69 and 68 suggested by steinie44 because the AD0 pin for sparkfun does not allow me to do so. And I really have no idea of what should I do.
Any suggestion?
Use different devices which have a different i2c address.
selector multi = 74LS138.
74LS138 select output = LOW; all other output = HIGH;
More information 74LS138/74HC138 datasheet
where i should connects the interrupts pins od other sensors?