4 digit LEDs with SPI interface. Ask Bean
LoopyByteloose
Posts: 12,537
These are great little devices that Bean is selling for almost nothing and can be used with BasicStamps to provide all sorts of program info.
Use them as counters, hexdecimal display, program status·or menu selectors.
I just ordered 10 for $27USD.· US shipping is $5.
The Numeric LEDS will ususally cost this much alone!
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"When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)
······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
Use them as counters, hexdecimal display, program status·or menu selectors.
I just ordered 10 for $27USD.· US shipping is $5.
The Numeric LEDS will ususally cost this much alone!
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)
······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
Comments
·· I tested a couple of these modules and found they do work exactly as described.· Of course, make sure your application does not require decimal points and these will be just fine.· 5V and direct connection to the BASIC Stamp using 2 I/O pins.
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Chris Savage
Parallax Tech Support
csavage@parallax.com
The photos look like they have them, but they are not connected, not supported by the controller.
What I really need are . . . . .
- a minute or second timer for relay on/off cycle using a BS24
- a hexdecimal display for a BS24 or the SX-28 chip
. . . [noparse][[/noparse]this is a debugging and learning feature for op codes and assembly language]
- possilbe range indicator for voltage or position using a BS24
- a frequency counter using a BS24
- a menu number indicator using a BS24
- a diagnostic code output using a BS24
As you can see, the decimal point is really trivial.
They provide a low cost, small size, and reasonably low power [noparse][[/noparse]60ma] information source.
All I have to do is add a few push buttons to select and reset.
Since they only demand merely two pins of I/O, they are superior to an LCD [noparse][[/noparse]which takes 7 pins].
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"When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)
······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
Post Edited (Kramer) : 4/21/2006 3:40:18 PM GMT
I got these cheap, so I'm selling them cheap. I've got over 2000 of them.
Website is www.hc4led.com
Bean.
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"SX-Video·Module"·available from Parallax for only $28.95 http://www.parallax.com/detail.asp?product_id=30012
"SX-Video OSD module"·available·for only·$49.95·www.sxvm.com
Available now! Cheap 4-digit LED display with driver IC·www.hc4led.com
"I reject your reality, and substitute my own." Mythbusters
·
·· Yeah, counters, techometers, etc.· All great uses.·
Allan,
·· The link is at the bottom of every post from Bean, but here ya go anyway...
http://www.hc4led.com/
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Chris Savage
Parallax Tech Support
csavage@parallax.com
My order is in!
You've got fewer, now....
(wonder if I could integrate them with a PWM LED project....hmmmm<g>)
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Truly Understand the Fundamentals and the Path will be so much easier...