I’ve been incredibly busy the last month or so.
I’ve fleshed out the design of my first product, which is to be called kuroBox.
It’s an extensible platform for me to build upon. At its root, is a data logger for film-related stuff. It has a system to write to SD card, TimeCode input, a TTL/RS232 serial port and an expansion header. Through this expansion header I can extend its functionality by creating daughterboards with specific functionality for a particular task. It can be an IMU, several serial ports for lens encoders, inclinometer, etc. Or all the above in one.
For the prototype, I’ve separated out the power supply front end from the rest so I can test it to destruction to establish performance parameters. I can power it from 8-30V, which is great for most situations on set.
I haven’t been able to destroy the thing though. I’m using a dummy load which a friend is selling (re:load – it’s amazing) – which is basically something that will use burn off electricity as heat – ideal for testing power supplies. I’ve powered it up 30V with no issues. I’ve also tried shorting it out, and the fuse kicks in nicely and recovers without a problem. Reverse polarity is no problem either – though if you are using the specified cables you will never run into this. And it doesn’t get hot either! So, in all, it’s a success.
Below is the main logger board. There’s a reason it’s a prototype, I made a mistake with the footprint of the SD card connector and it’s currently upside down on the board! New boards are on their way. You can see the left side of the board is not populated – that’s the power supply front end, currently being handled by the other prototype, off-board. Most things work, but there’s a few things to iron out, like all version 1 prototypes. Most things on the board respond exactly how I would expect them to, so I’m happy with them.
I’m currently working on software, using ChibiOS as my base – and it’s a great OS, very complete, easy to use, well documented and an incredible community.
Stay tuned, I’m expecting lots of updates to this very soon.