2022-10-20, 07:56 PM
Sorry I forgot to say this too. The imu should _not_ receive 5 volts. Please do not do this.
By contrast, the nano normally _does_ run on 5 volts. The code assumes it, but you would need level translators. It is possible to simply use 2 resistors for 5v to 3v3 on the uart, or a zener and resistor. Converting the other way should not be an issue.
You probably can run the nano at 3v3 but keep in mind the code and schematics I produce do not. I use optical isolation between the two which also handles voltage translation.
By contrast, the nano normally _does_ run on 5 volts. The code assumes it, but you would need level translators. It is possible to simply use 2 resistors for 5v to 3v3 on the uart, or a zener and resistor. Converting the other way should not be an issue.
You probably can run the nano at 3v3 but keep in mind the code and schematics I produce do not. I use optical isolation between the two which also handles voltage translation.