Hello,
I have a quick question. I can't find the answer on internet.
I want to controll 4 SG90 Servo-motors (Here is the datasheet). My problem is that I will have PWM signals coming from a STM32 microcontrollers (so these PWM will be 3.3V) but the motors will have arround 5V or a bit more as power supply (anyway, more than 3.3V).
Is it possible to make them work with PWM voltages lower than their power supply ? Or do I have to find a way to "increase" the voltages of the PWM (and if so, how can I do this ? maybe with a pull-up resistor but I don't know the "risks" for the integrity of the signals) ?
Thanks in advance for your answers !
I have a quick question. I can't find the answer on internet.
I want to controll 4 SG90 Servo-motors (Here is the datasheet). My problem is that I will have PWM signals coming from a STM32 microcontrollers (so these PWM will be 3.3V) but the motors will have arround 5V or a bit more as power supply (anyway, more than 3.3V).
Is it possible to make them work with PWM voltages lower than their power supply ? Or do I have to find a way to "increase" the voltages of the PWM (and if so, how can I do this ? maybe with a pull-up resistor but I don't know the "risks" for the integrity of the signals) ?
Thanks in advance for your answers !