This app was mentioned in 4 comments, with an average of 2.50 upvotes
https://play.google.com/store/apps/details?id=edu.unh.cs.android.dopesafe
This was the one I remember dude posting ages ago. I don't think you have to hold it down, just push it every so often or else it sends for EMS.
Hi, sorry I'm late to the thread, hope you don't mind if I answer anyway.
I don't think I would bother, since it would mean weighing out the tar each time I dosed. I'm sure there are people out there who would be more diligent though. Technology facilitates these awesome innovations in how we track, maintain, and alter seemingly everything. There was a new app developed and posted on the opiates subreddit relatively recently, it's functionality is to increase the safety of iv addicts who shoot up alone, as they are particularly at risk of fatal overdose. I think how it works is you enter a friend's number, and after a set amount of time passes, if you haven't interrupted the command, the app automatically will contact your friend so that they can (hopefully) contact emergency services. Here's the thread talking about it, and this is the link to the app. Obviously designed with a different sort of function to your idea OP, but I thought it was a complementary concept. And it is so amazing to see ideas get actualized that further the ideology of harm reduction. I thought it was especially cool of the developers to make this app because, if I recall correctly, they aren't users themselves, they just wanna help the community.
IV drug users (like me) often face a lot of stigma, and I appreciate people who, although technically outsiders to the community, have the desire to help us instead of perpetuating a status quo which contributes to potentially preventable deaths. So I think you should totally pursue your ideas, if you choose to. :)
TL;DR: Fuck yeah, thanks for trying to figure out how we can help others cope more safely with their addiction!
Still in beta: https://play.google.com/store/apps/details?id=edu.unh.cs.android.dopesafe
Check in with one of the devs ( /u/can0lard ) if you have any questions.
They have all those bracelet things that monitor heart rate ... so I don't think it would be too difficult to create even with the hardware.
I think there's a much bigger marketplace though for those out there who have very frail health ... like those "I've fallen and I can't get up" devices they had in the 90s ... "Life Alert" ... or what-ever it's called.
I guess /u/heroinking has tried to setup a simple egg-timer like app ...
https://play.google.com/store/apps/details?id=edu.unh.cs.android.dopesafe
... and has a beta up on the google app store.
There are more modern medical alert systems available, that can detect falls ... blood glucose levels ... and fancy stuff like that.
Though they don't seem tailored to heroin users that would want to turn the system on/off whenever they're about to do something incredibly stupid. They do allow you to automatically or at the push of a button call a friend, their service, 911, or even an Uber.
I wonder if we could setup an app ... that worked like Uber but with drivers that kept Narcan on them. There's so many Uber and Lyft drivers out there, that they could easily provide a much faster response time than even 911 ... and if they're trained to use Narcan could save many user's lives that would otherwise be lost due to long response times for police, ambulances, or traffic. We could even provide narcan to jurisdictions that have refused to supply their first responders with it!
I guess ideally we'd be able to integrate fall detection, heart rate, and GPS. The application would have an egg-timer and alarm ... and could automatically be set to call Lyft-Me-Back-From-The-Dead as well as 911 or friends.
I guess to minimize false-positives with 911 it would be best to let a friend or even the Uber drivers make that call ... and not automate that call.
>Driver: Freddy took 2mg of xanax and a large shot of dope before enabling Dope-Alert. He fell, and has not responded for 5 minutes, please come to 123 Dirp Street to check on him.
I guess the other benefit is that it would allow first responders to know exactly what the person ingested. The user could input their stamp bags or what-ever, and if there was an ongoing OD crisis related to them ... they'd know before they even arrived.
edit: Also, if we work with needle exchanges to train and distribute narcan to Uber/Lyft drivers ... we could also use the exchanges to distribute the application to users ... and thus reach a much larger segment of the market than had we been limited to /r/opiates users and word of mouth.