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Show HN: I made a tiny camera with super long battery life

toaster.llc

181–190 of 309 posts

Re: Show HN: I made a tiny camera with super long battery life

#181
post #52

Earlier quoted context omitted.

I was wondering about the weight which I couldn't find specified (although at that size it can't be much) and about ways that you could attach a strap to it.

For some reason I never thought to weigh it! Need to update the website. I just put one on my kitchen scale: 70g.

Oh wow, that's almost as light as a Scatt (totally different domain, but also a very customized/specialized camera).

Re: Show HN: I made a tiny camera with super long battery life

#182
post #3

Are there sample images from the camera on the product website? This is a neat idea but it would be nice to gauge to what extent it is fit for purpose, and a helpful way to do this is with a bunch of sample images.

I should definitely add some sample images... For now, the Mac app has real imagery in the demo mode: https://apps.apple.com/us/app/photon-transfer/id6476578040 (The demo photos are from the Lick Observatory on Mount Hamilton.)

This is an amazing project, but you are pitching it as an engineer. As an amateur photographer, the first thing I want to see are sample photos. Super cool little device!

Re: Show HN: I made a tiny camera with super long battery life

#185
post #44

Earlier quoted context omitted.

Totally fair question! My reasons were: 1. To maximize Photon's battery life I tried to make the hardware do the absolute minimum to record imagery. To that end, Photon stores images on an unformatted SD card (ie one huge linear array of bytes) which is easy and fast to index into. 2. A 16-bit MSP430 handles writing the image data, and the MSP430's codespace is 99% exhausted without dealing with the complexities of a…

It's pretty cool that your MSP handles the SD Card directly! Personally I think you should keep the focus on a polished mac app. For other platforms you can do just the bare minimum with a web app that uses WebUSB. People will bitch that it's Chromium only but, I mean, chromium has 95% market share outside Apple world (and I say this as a FF user). A hardware solution could be to add a cheap microcontroller that woul…

> It's pretty cool that your MSP handles the SD Card directly!

No it isn't. Accessing an SD card from a microcontroller requires you to do that. To use FAT involves more effort, though lightweight libraries are available.

Re: Show HN: I made a tiny camera with super long battery life

#186
Since there is so much anxiety about mac-only -- could you provide a small python file to read out the raw photos on any platform ?

It looks like you could just 'dd if=/dev/disk123 of=/tmp/bigrawfiles' and then postprocess with said python script.

Yes, not as good as a polished apple app, but for many people that really like the hardware and don't mind a bit of DIY, it's maybe enough...

Re: Show HN: I made a tiny camera with super long battery life

#188
Mr Dave, much appreciated for the post.

Looking for help how to learn from your github where the raw data for building is located.

As an aspiring creator of similar things, I'd very much appreciate a road map from your view on how to best approach the github source... from a learners perspective.

So for example, if a break down was based on complexity, barrier of entry, activation energy of baseline starting... etc.

the key areas I see are:

- hardware design

- hardware ordering

- software design and interface with hardware

- materials selection - chips - case/3dprint/scaffolding

- time constraints to keep in mind for the above so as not to 'overload the novice'

So ... Thanks for the post and the clear historical reference frame. If you end up answering this post, it will only add to the appreciation!

:D

Re: Show HN: I made a tiny camera with super long battery life

#189
> simply unhackable. Photon doesn't do Bluetooth, Wi-Fi, or cellular, so your photos can't leave the device without physical access to it

saying that something is "unhackable" makes me very uncomfortable, like saying something is "bulletproof". Having no external wireless connectivity also doesn't make something unhackable. If it communicates to a host app on the computer, and that app is vulnerable, it could be hacked through that. if it has a firmware update option, you can hack it through that. I'm reminded of smea's smart sex toy hacking video, where he exploited a sex toy by going through a chat client, then exploiting its bluetooth connection via a vulnerable usb dongle. Replace bluetooth with a usb c cable and it could be vulnerable

Re: Show HN: I made a tiny camera with super long battery life

#190
post #44

Earlier quoted context omitted.

Totally fair question! My reasons were: 1. To maximize Photon's battery life I tried to make the hardware do the absolute minimum to record imagery. To that end, Photon stores images on an unformatted SD card (ie one huge linear array of bytes) which is easy and fast to index into. 2. A 16-bit MSP430 handles writing the image data, and the MSP430's codespace is 99% exhausted without dealing with the complexities of a…

It's pretty cool that your MSP handles the SD Card directly! Personally I think you should keep the focus on a polished mac app. For other platforms you can do just the bare minimum with a web app that uses WebUSB. People will bitch that it's Chromium only but, I mean, chromium has 95% market share outside Apple world (and I say this as a FF user). A hardware solution could be to add a cheap microcontroller that woul…

Maybe an electron app? I mean, we all love electron, right?
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