Hello,
it would be very nice, if you could help me.
I have some devices, which I used in the same circuit. Seven shift register "CD 4021" in daisy chain with hall effect sensors , and a BMP 180 pressure sensor.
They need different power supplies. The shift register needs at least 3.8V and the BMP 180 3.3V.
Is it possible to connect them to different pins of teensy(shift register to Vin pin, BMP 180 to 3.3v pin) for power supplying?
Or do I need a level shifter to connect both to the same pin. I prefer to not use a level shifter.
PS: The BMP 180 has a I2C interface and is a china product.
it would be very nice, if you could help me.
I have some devices, which I used in the same circuit. Seven shift register "CD 4021" in daisy chain with hall effect sensors , and a BMP 180 pressure sensor.
They need different power supplies. The shift register needs at least 3.8V and the BMP 180 3.3V.
Is it possible to connect them to different pins of teensy(shift register to Vin pin, BMP 180 to 3.3v pin) for power supplying?
Or do I need a level shifter to connect both to the same pin. I prefer to not use a level shifter.
PS: The BMP 180 has a I2C interface and is a china product.