Wireless Tally on Dieter Vansteenwegen / Boxfish

Wireless Tally for JVC GY-HM790 cameras: Part 1

Mon, 31 Mar 2014 00:00:00 +0000

Introduction

I’ve been working on my wireless tally system for a while now. Apart from the connection to the camera (for which I want to use a different connector to alter the appearance of the camera as little as possible) it is finally finished. Looking back, this has taken me much more time than I expected. But as this was the first project that I wanted to do in a more professional way instead of just throwing something together that shouldn’t necessarily be a bad sign. I’ve tried to keep revisions of the schematics, board design and code, as well as a clear BOM that can be used as a guideline in the future, should the need arise.

Wireless Tally for JVC GY-HM790 cameras: Part 2

Tue, 18 Feb 2014 00:00:00 +0000

After lots of troubleshooting my wireless tally project/product is nearly finished.

The prototypes have been tested in the field and proven to work as expected.

Next up are the finishing touches: etching the boards with the final adjustments, populating them, programming the microcontrollers and fitting everything in the enclosures.

An early prototype boards:

An early version of the transmitter board.
As a size reference: the top left pads are for a micro usb connector.

Wireless Tally for JVC GY-HM790 cameras: Part 3

Mon, 09 Sep 2013 00:00:00 +0000

Part number confusion

As I am currently working on a project that involves XBee modules for wireless data transmission I had to look for the best type of module. There are a dazzling amount of different versions and plenty of websites that explain the the different lines of modules (Series 1, Series2, Pro vs normal versions,…). It was much harder to match the version and antenna type that I needed with the corresponding part number, and that is what I needed to order the correct one from suppliers such as Element14 and Mouser.