Hey guys I am in the remote jungles of Costa Rica on a university research trip and I would like to help our local guide rig up a security system to help protect our turtle egg nurseries. Any help would really be doing some awesome help for some people that have dedicated their lives to conservation in some pretty unforgiving environments. I am only first year electrical student so need assistance.
I need to rig up some passive motion sensors (its all we have here, pics below). I plan to take an arduino and some other basic tools (what i have in the village).
Can I connect an Optex RX series PIR to an Arduino
Any code samples for a PIR of this type?
What kind of circuit should I use (resistors blah blah)
Would it be possible to add the attached horn?
We have a major probem with poachers and any orebuilt system is far out of the budget range.
LETS RALLY FOR SCIENCE!!!
I can gladly provide my university credentials to prove this is a legit project.
How many of these are you planning to build?
How are you going to power the project? Horns take a lot of power.
What effect will the horn have on other wildlife?
Are the poachers' livelihood effected by loss of the eggs?
Hey guys I am in the remote jungles of Costa Rica on a university research trip and I would like to help our local guide rig up a security system to help protect our turtle egg nurseries. Any help would really be doing some awesome help for some people that have dedicated their lives to conservation in some pretty unforgiving environments. I am only first year electrical student so need assistance.
I need to rig up some passive motion sensors (its all we have here, pics below). I plan to take an arduino and some other basic tools (what i have in the village).
Can I connect an Optex RX series PIR to an Arduino
Any code samples for a PIR of this type?
What kind of circuit should I use (resistors blah blah)
Would it be possible to add the attached horn?
We have a major probem with poachers and any orebuilt system is far out of the budget range.
LETS RALLY FOR SCIENCE!!!
I can gladly provide my university credentials to prove this is a legit project.
Yeah I have but this system mentions 2 or 4 pulse count and I also am not sure if brand matters etc. and in rhe jungle its a one shot and if it breaks ur screwed
to answer your questions, the horn is not important but the hatchery is 50 yards from camp on the beach. we have solar panels but notat rhe hatchery so i will scrap the horn idea.
poachers livelihoods are a genuine issue and i appreciate the concern but egg collecting is illegal here and is primarily done to trade for drugs. these leatherback, green and hawksbill tuetles are very much endangered. many have been hired as guides for the good guys but many refuse and pose safety issues.
thanks for the logical suggestions but if you are going to take the time to make a post maybe actually help,with the questions at hand...
paul to answer your questions in the other post as im trying to remove it, the horn is not important but the hatchery is 50 yards from camp on the beach. we have solar panels but not at rhe hatchery so i will scrap the horn idea since 12v battery is the plan.
poachers livelihoods are a genuine issue and i appreciate the concern but egg collecting is illegal here and is primarily done to trade for drugs. these leatherback, green and hawksbill tuetles are very much endangered. many have been hired as guides for the good guys but many refuse and pose safety issues.
delta-g no offense was intended and i pay a lot to get internet here so each page load is valuable. the gentleman went out of his way to scold me on double posting and some basic suggestions i find a little unhelpful with 6 years working here and technically completely off topic, yet I still thanked him and asked for a refocus to the actual questions at hand i felt were well laid out. no offense intended but shouldnt replies be focused to the subject of the actual post? i personally think so and think i handled my response with class, however i am open to other cinstructive opinions. after weeks of walking over 100 miles for turtles and guarding nests 24/7 i could use some real help.
You need to explain your goal in detail to get relevant help. Explain your constraints. Explain the devices you have access to.
What is the area that needs monitoring? What power sources are available? What do you want to happen when you detect a wascally poacher? Sound an alarm? Turn on lights? Send a tweet to your mom? Trigger a landmine? Take a picture?
You've told us nothing relevant. It doesn't matter how noble you feel the cause is, the technical advice will be identical if you were trying to protect a pile of unimportant cabbage.
Since you aren't asking anyone to design anything, and you don't think it relevant to answer my question about what you have access to e.g. transistors, relays, fets, and you'll probably be shown the door here to help you on your way to seek help elsewhere, consider your questions answered and adios.
INTP, thank you for your responses. That was actually useful info. Now to reciprocate and answer your questions. I do not have access to much. I have only what I mentioned really: A few of those PIR sensors stripped from an old security system, a bunch of wire and an old ADT security box and the components inside I can remove with a solder gun. I have attached a photo of the security system box and if I cannot strip something of an old component here I think I can get more resistors and fets when I go to the city for supplies in a few days. Any other sensors or actual components can be assumed impossible to get down here. Radioshack only sells cellphones and RC cars and there is no such thing as an electronics store.
So you have a solder gun. Good to know. Do you have a multimeter?
What does that PIR sensor do on its own? Light up? Was it connected to some other device? You have to figure out what kind of signal it puts out- voltage, current, duration. Then you need components to make it Arduino friendly. That will vary depending on what you figure out.
The simple fact is that any sensor and any device (like the horn) can be connected to an Arduino. It's just a matter of using the right components in between. Relays, transistors, optocouplers, MOSFETs, etc.
If you have no relays, you're going to need to know more about your components than even the datasheet says.
