I want to start off by saying I know absolutely nothing about this field. I want to build myself a product but don’t know where to even start

I want to take an acceleration sensor to sense a vibration. When sensed, I want it to send (via LoRa I assume) to a receiver that will then activate a 12V strobe and at the same time that strobe/receiver send a signal to another receiver to a tablet (for future app development).

transmitter/sensor could be upwards of 400 yards apart and I need the ability to link several transmitters with accelerometers to a single receiver

any guidance would be greatly appreciated

 

"Sense a vibration" needs a whole lot more definition. What frequency range? What amplitude range? Sensed what?

Once you have identified WHAT you're trying to measure (as above), then you can determine what type of accelerometer or other sensor you need.

All of these parameters define what signal conditioning and electronics you need.

Do your homework. Search the web for similar applications to see important onsiderations. Then start filling in the details.

 

"Sense a vibration" needs a whole lot more definition. What frequency range? What amplitude range? Sensed what?

Once you have identified WHAT you're trying to measure (as above), then you can determine what type of accelerometer or other sensor you need.

All of these parameters define what signal conditioning and electronics you need.

Do your homework. Search the web for similar applications to see important onsiderations. Then start filling in the details.

The vibration would be when a sheet of steel is impacted by something hard. So as far as frequency range, I don’t know. The web is so full of information, I quickly get overwhelmed and lost in a sea of chips, which is why I’m trying to reach out on a forum. Thank you

 

It is very common for people to focus on the solution without revealing the problem. This is a huge mistake. Please give us the big picture and then we will be in a better position to assist you.

 

It is very common for people to focus on the solution without revealing the problem. This is a huge mistake. Please give us the big picture and then we will be in a better position to assist you.

I’m trying to make a light indicator so when I shoot a steel target, the hit of the target causes a flashing strobe. I need the ability to link multiple sensors to 1 light (1 light indicating hits on several targets)

 

That is much better. Thanks.
I think that you don’t need an accelerometer. A simple piezoelectric transducer will do.

With multiple targets, do you need to identify which target was hit?

Is the strobe light in the vicinity of the target or closer to the shooter?

 

That is much better. Thanks.
I think that you don’t need an accelerometer. A simple piezoelectric transducer will do.

With multiple targets, do you need to identify which target was hit?

Is the strobe light in the vicinity of the target or closer to the shooter?

The target that is hit does not need to be specifically identified at this point. Maybe in future iterations. The strobe could be as far as 200-300 yards away, depending on terrain

 

Here's a circuit for detecting the "hit" using a simple mechanical vibration sensor that I have experience with. When detected the circuit will send power to the transmitter for appx 2 seconds. Zero standby current until a hit is detected. Some component values dependent on battery voltage and type of transmitter used.