| Electronics > Beginners |
| 10937p-50 chip? |
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| hydrolisk1792:
How the heck do you use this chip? I have close to thirty of them I pulled off of busted vfds from old snack vending machines. I would like to use them to drive 14 segment led displays. I figured it was possible because the data sheet says it can be used for both led and vfd. I can't get it to work at all, I've tried three chips so far. I know the chips are good because I have a test rig setup with a socket on an original working display board... I'm under the impression that they are powered from 5 volts and I already have data being sent to sck and data via an arduino. I get nothing on the led displays and all the pinsare at 0.0 volts... I can attach a data sheet of needed but a quick Google search will also bring it up. Any help would be really appreciated. I've been on this now for three days straight... |
| daryl_uk:
Would be helpful if you could post your schematic of your circuit design for de-buging. |
| hydrolisk1792:
Unfortunately I don't have a schematic for what I have on the breadboard. All I have is 5 volts hooked to vss pin, and the vdd pin at ground. Of course I also have the reset, sck and data lines hooked up to the arduino. Furthermore I have the reset line tied to the arduino via a pnp transistor like it shows in the dataset with some resistors. I have all the grid and anode control pins tied to ground via 100k resistors. My main question is on how to use this chip with 14 or 16 segment alphanumeric displays like it says can be done in the datasheet? :-// |
| Whales:
We can't help you at all if we can't see what you're doing, there are an infinite number of things that can go wrong with any circuit. Draw a full schematic of what you have made on a piece of paper and post a picture. |
| hsn93:
im not sure but i think the arduino clock is faster than what the chip can handle? |
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