![]() I am wondering about going to Wireless communications (Ciseco radios I think as they should happily do 300m with line of sight and they look quite nice in the way they work. This means a number of daisy-chained 30m cables which the archers regularly trip over thus disabling the timing displays!! It is cabled with some form of serial connection which also carries power (24v I believe) for all the display boards and speakers. The main commercial system runs off 24v (2 car batteries strapped together) which can power for 2 days. Could be part of the main display but for flexibility a seperate box would be good. a set of loudspeakers for audible start/stop. which groups should be shooting (alternates) (could be on the first display as instead)Ĭ. count-down in seconds and a set of traffic lights (this may be optional but would be nice),ī. Similar commercial systems are supplied with a 2 or 3 different displays which need to be visible from about 60-80m. (I will come on to communication in a moment). While at some venues mains power may be available that can not be guaranteed, so the system must have a battery option and ideally be able to run for at least 12 hours and preferably 2 days of 12-hours a day. I will also use the display to show the count down on this box for the director of shooting. Typically there will also need to be a number of buttons (up to about 10) for various start/stop/abort functions and possibly some menu functionality to pick timing sequences (hence some form of display like a 20x4 LCD). The actual programming of this will be somewhat complicated, but I think I can handle this (programming is my day job). Timing sequences can vary depending on the tournament. Used by the judges to start and stop timing. Penny pinching is not needed, though I don’t want to be spending mega-bucks.The basic system will likely be as follows. I have a number of design major decisions to make, and this is where I would like some feedback. However for small clubs we can not afford this and I would like to give this a go for my own interest too. I do not begrudge people making money on these as they are fairly niche and the companies have development costs to cover. There are others out there but they are very expensive. I am looking to put together a flexible archery timing system. Each axis display made from 2 4-digit 7-segment display driven with SPI). Fairly simple messaging through UDP for updating any axis display and some commands for configuring the box, stored in EEPROM. My first was a display box for a 5-axis motor-controlled stage on a big scientific instrument. This is my second Arduino project, so I am not a total novice. This is just a sanity check and request for input to clarify my thinking (and perhaps point out things I have forgotten). No hardware specified yet and no code written.
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