Hello,
I'm designing a weather station with a microcontroller. The first sensor is a rain gauge (with tipping bucket mechanism). Both microcotroller and the sensor go to 5V.
In a circuit I have seen that diodes of protection are used at the entrance of the rain gauge sensor. These diodes are 250mA/100V. I want to know if those values are critical, or they can vary within a few margins. Are they effective to protect 5V overvoltages?
I'm designing a weather station with a microcontroller. The first sensor is a rain gauge (with tipping bucket mechanism). Both microcotroller and the sensor go to 5V.
In a circuit I have seen that diodes of protection are used at the entrance of the rain gauge sensor. These diodes are 250mA/100V. I want to know if those values are critical, or they can vary within a few margins. Are they effective to protect 5V overvoltages?