the U11 is a switch symbol, meant to allow switching of the supply voltage for the HALLs, PullUp resistors and temp sensor. Nowadays all HALLs I know of work with 5V (min Vcc=3.6-4V), but maybe with Die-Shrinking the Voltage will go down to 3.3V in the future. The used uC is 3,3V and accept only voltages up to 3,3V, so running every input with max. 3,3V is very tempting.
Cheers
Sam
Pedelec usage in combination with a GoldenMotor MagicPie3 BLDC
Why is the MPU9150 SCL and SDA lines tied to the bluetooth RX and TX lines? The mpu9150 requires pull up resistors to 3.3v so this doesnt seem like a good idea?
Hall sensor.
P4 is for the Hall Sensor. But U11? The 1, 2, 3 seems to be a switch right (used on the hallsensor)?
Hi mendez
the U11 is a switch symbol, meant to allow switching of the supply voltage for the HALLs, PullUp resistors and temp sensor. Nowadays all HALLs I know of work with 5V (min Vcc=3.6-4V), but maybe with Die-Shrinking the Voltage will go down to 3.3V in the future. The used uC is 3,3V and accept only voltages up to 3,3V, so running every input with max. 3,3V is very tempting.
Cheers
Sam
Pedelec usage in combination with a GoldenMotor MagicPie3 BLDC
I think it's hall sensor.
gun mayhem 2
The switch allows the use of encoder working with 3.3V.
Why is the MPU9150 SCL and SDA lines tied to the bluetooth RX and TX lines? The mpu9150 requires pull up resistors to 3.3v so this doesnt seem like a good idea?
Drey Platt
Anyone know if this is a design error. It appears you either can have an accelerometer with pull up lines or a bluetooth module, not both.
Drey Platt
Which HW are you talking about? The VESC 6 plus?