Sasha Posted March 28, 2006 Report Share Posted March 28, 2006 I made a wire loop on my bankstick and I added indication LED so it looks cooler. Quote Link to comment Share on other sites More sharing options...
stryd_one Posted March 28, 2006 Report Share Posted March 28, 2006 Carry your patches with your keys, cute :) Quote Link to comment Share on other sites More sharing options...
pay_c Posted March 28, 2006 Report Share Posted March 28, 2006 Is the indication LED between +5/GND or something more like data line? So: DOES IT FLASH?!? ;D ;D ;D Quote Link to comment Share on other sites More sharing options...
Sasha Posted March 28, 2006 Author Report Share Posted March 28, 2006 It is just between +5/GND. I didn`t wanted to mess around with data lines in case it could influence on signals or something. It also doesn`t flash. Quote Link to comment Share on other sites More sharing options...
pay_c Posted March 29, 2006 Report Share Posted March 29, 2006 Anyway some very cool idea! Some USB-Stick feeling! Like it!!! 8) Quote Link to comment Share on other sites More sharing options...
SLP Posted August 2, 2006 Report Share Posted August 2, 2006 what about a super-small circut with a SMD NE555 , 2 SMD resistors and a small capacitor?this would make the LED flash. :Das the chip has only got 8 pins there would be no need for a PCB. Quote Link to comment Share on other sites More sharing options...
Sasha Posted August 3, 2006 Author Report Share Posted August 3, 2006 what about a super-small circut with a SMD NE555 , 2 SMD resistors and a small capacitor?this would make the LED flash. :Das the chip has only got 8 pins there would be no need for a PCB.I think this is not good idea since you already have flashing LEDs. I dont belive you want to alterate flashing speed. Quote Link to comment Share on other sites More sharing options...
SLP Posted August 3, 2006 Report Share Posted August 3, 2006 It also doesn`t flash. I think this is not good idea since you already have flashing LEDs. ??? Quote Link to comment Share on other sites More sharing options...
Sasha Posted August 3, 2006 Author Report Share Posted August 3, 2006 My sticks LED doesn`t flash but you can buy flashing LED for your stick if you want to. Besides, I dont see the point of flashing stick. Flashing should be used to signalise something is going on in the moment but not something is povered on. Am I right? Quote Link to comment Share on other sites More sharing options...
SLP Posted August 3, 2006 Report Share Posted August 3, 2006 1. those flashing LEDs have usually a frequency of ~1,5 Hz that's quite slow2. Flashing should be used to signalise something is going on in the moment but not something is povered on. Am I right? ok. you're right. but fast-flashing LEDs are more impressing ;D Quote Link to comment Share on other sites More sharing options...
tos Posted August 4, 2006 Report Share Posted August 4, 2006 Let's cut the small-talk and consider the ways of making a something's-going-on indicator.I can imagine one TR(used for switching), R and LED. Anyone that can design this? Quote Link to comment Share on other sites More sharing options...
SLP Posted August 6, 2006 Report Share Posted August 6, 2006 TR=Transistor, right?shouldn't be very difficult.the signal to/from the eeprom is going from B to Ethe R-LED-stuff should go like+5V-LED-R-Collector-Emitterbut i have no idea about influencing the signal andhow many current the PIC/EEPROM can bear :-\but please hurry with the schematic. I want to start with my SID soon andthis would be a real cool feature :) Quote Link to comment Share on other sites More sharing options...
tos Posted August 6, 2006 Report Share Posted August 6, 2006 Pepole, anybodey, F1! Quote Link to comment Share on other sites More sharing options...
c0nsumer Posted August 7, 2006 Report Share Posted August 7, 2006 I'm curious, what is everyone's reason for wanting LEDs on their banksticks, in particular, blinky ones?Is it to see if they are being accessed at a particular time, or just for the blinkyness in and of itself? Quote Link to comment Share on other sites More sharing options...
SLP Posted August 7, 2006 Report Share Posted August 7, 2006 both! ;D Quote Link to comment Share on other sites More sharing options...
audiocommander Posted August 7, 2006 Report Share Posted August 7, 2006 if you're really keen on flashing lights and are able to change the source-code of your application, just connect a DOUT-line to your bankstick (when using the default sub-d-pin, there are some lines left), and switch it on by code if a function is accessed that is using the bankstick. then you could add a cap to smooth the signal, because otherwise it wouldn't be visible.I can imagine it would be too much hassle to integrate it directly to the SD/SC lines and - most important - this would probably disturb the dataflow (cool, :o have a blink but no more data)... functionality is more important than design and good design is supporting functionality by increasing efficiency and not fighting against it... ;)therefore I like the idea of a constantly illuminated LED much more, because this way you see if your bankstick is attached correctly and should work. if it's not blinking you'll never know if it's not connected properly or just not being accessed......cheers,ac Quote Link to comment Share on other sites More sharing options...
c0nsumer Posted August 7, 2006 Report Share Posted August 7, 2006 While poking around, I came across this article which describes how to make a blinking LED to indicate the status of a DMA line on an IDE controller. Looks to me to be usable on the data line for the BankStick. If I'm reading right, I2C (IIC) runs at a max of 3.4MHz, and this should be plenty safe to use on there.The only problem I can see is that all the 2N7002 parts I'm finding are in packages like SOT-23, SOT-223, or SOT-563. If I get some time, maybe I'll make up a little board layout for one (or more) banksticks, this package, and an LED. Or I guess you could point-to-point it and then just pot it all in some hot melt glue or something.-Steve Quote Link to comment Share on other sites More sharing options...
c0nsumer Posted August 7, 2006 Report Share Posted August 7, 2006 I got a bit bored and threw this together quickly. It hasn't been tested yet, but it should work. If you build it, or breadboard it and test it, please let me know how it goes. I can't get any of the needed FETs locally and I'm not placing another Mouser order for a while. (I checked... RS only has the wrong type.)It's a 1.5" x .5" (stick of gum sized, or so) BankStick with LED indicator on a single-sided PCB. The indicator is triggered by activity on the IIC Data line, so it'll blink every time anything happens via IIC. No real way around that. If you want something to blink only when reads/writes from the EEPROM happen, use a DOUT and change MIOS or whatever. I'd personally prefer this because it's done in hardware and will work regardless of changes to the Core or MIOS or whatever app.Parts are as follows:D1: 1N4148 -- 512-1N4148IC1: Microchip 24LC256 / 24LC512 in socket. -- 579-24LC256-I/P - 575-193308T1: 2N3820 (TO-92) -- 512-2N3820LED1: 3mm LED -- 638-204HDR1: 220? (Change based on the requirements of your LED.) -- 291-220-RCJP1: 1x4 .100" header of whatever style you prefer. -- 571-1032394.brd, .sch, and .pdf and .ps exposure masks are available here: http://www.nuxx.net/files/bankstick_activity_led.zip-Steve Quote Link to comment Share on other sites More sharing options...
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