Hi everyone,
I am looking to build a simple circuit that detects when a car approaches my gate that will then sound a buzzer or something similar back at my house.
I'm thinking that an IR sensor is the best approach. Either have a break beam sensor or a reflective IR sensor.
Now, I have a few questions that I need clarifying.
The distance from the gate to my house is about 150-200 meters.
If I go for an IR sensor that is rated at 5V supply would the run be too long?
I have been browsing suppliers such as RS components and noticed that they do IR sensors that need a supply of 10-30V. Is this voltage level used because of long distances and voltage drop?
What I'd like is some kind or IR sensor that detects a car then triggers some simple logic circuit which will pulse a buzzer high and low using something like a 555 timer.
Is this a good approach? Does anyone have any comments that could aid me in my design choice.
I thank you all for your time reading this and appreciate any feedback possible.
Rob
I am looking to build a simple circuit that detects when a car approaches my gate that will then sound a buzzer or something similar back at my house.
I'm thinking that an IR sensor is the best approach. Either have a break beam sensor or a reflective IR sensor.
Now, I have a few questions that I need clarifying.
The distance from the gate to my house is about 150-200 meters.
If I go for an IR sensor that is rated at 5V supply would the run be too long?
I have been browsing suppliers such as RS components and noticed that they do IR sensors that need a supply of 10-30V. Is this voltage level used because of long distances and voltage drop?
What I'd like is some kind or IR sensor that detects a car then triggers some simple logic circuit which will pulse a buzzer high and low using something like a 555 timer.
Is this a good approach? Does anyone have any comments that could aid me in my design choice.
I thank you all for your time reading this and appreciate any feedback possible.
Rob