Live data from Hacker News

Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

bcarrigan.com

1–10 of 60 posts

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#2
I love these little stories, they always make me want to go out and buy a proper oscilliscope so I can start my own adventures.

I'm surprised by how simple and easy to understand the data serialisation is on some bits of hardware as in this case.

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#4
post #2

I love these little stories, they always make me want to go out and buy a proper oscilliscope so I can start my own adventures. I'm surprised by how simple and easy to understand the data serialisation is on some bits of hardware as in this case.

I'm an electronics enthusiast (play with it on weekends) and the Rigol DS1054Z oscilloscope (it's the same used by OP) has a really good cost/benefit, and it's also hackable.

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#5
post #4
post #2

I love these little stories, they always make me want to go out and buy a proper oscilliscope so I can start my own adventures. I'm surprised by how simple and easy to understand the data serialisation is on some bits of hardware as in this case.

I'm an electronics enthusiast (play with it on weekends) and the Rigol DS1054Z oscilloscope (it's the same used by OP) has a really good cost/benefit, and it's also hackable.

Yes I was just looking at it, £300 seems pretty reasonable. A while ago I was looking at old used stuff but even they are in the thousands. Thanks for recommending it, it's nice to know some HN readers are using it because I don't really know what to look for in an oscilliscope :)

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#6
post #2

I love these little stories, they always make me want to go out and buy a proper oscilliscope so I can start my own adventures. I'm surprised by how simple and easy to understand the data serialisation is on some bits of hardware as in this case.

Thank you for the kind words! I will echo slig and say that I have been really happy with the Rigol DS1054Z so far. I love that you can build a really capable electronics lab at home in 2018 for less than $500.

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#7
post #3

This is such a cool little project! I'm planning out a dedicated setup for my kitchen, particularly for recipes, but inventory management is another opportunity I've been wanting to explore. Great writeup with detail!

Thank you very much! I'd love to hear about what you come up with for recipe management.

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#8
We've found Wunderlist to be truly amazing as a shopping list app, and my family has been throwing this type of idea around for a while, though instead of using a dedicated scanner we were thinking of just throwing together a simple app that used the camera and available barcode reading software that connected directly to our shopping list.

It's nice to see that someone else came up with this idea, executed it so well.

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#9
post #7
post #3

This is such a cool little project! I'm planning out a dedicated setup for my kitchen, particularly for recipes, but inventory management is another opportunity I've been wanting to explore. Great writeup with detail!

Thank you very much! I'd love to hear about what you come up with for recipe management.

Right now I'm going very low tech for recipe management...I send a DM to my SO on slack. That's most of what we use the DM for, an archive of things we've made. We mostly need a bigger screen in the kitchen that stays on while making a recipe. A Microsoft Surface we have laying around will be used for that.

I'd like to do a database of products purchase, purchase date, price paid, scan a barcode and mark it as consumed, and calculate typical consumption rate of the products.

I will keep things pretty simple, either a sqlite database that stays local or a LAMP setup so I've got access to an inventory list at the store along with "price check" functionality.

Re: Show HN: Giving a Broken Barcode Scanner a New Life with Elixir and Nerves

#10
Love this!

I was thinking of something similar, but mostly as an inventory + expiration tracking system, because we often forget what we have in the fridge and cabinets. I love the integration with Wunderlist for adding to the shopping list as well!

Post reply on HN