vfd_driver
Differences
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| Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
| vfd_driver [2016/01/28 09:24] – [micro-controller] kingkevin | vfd_driver [2016/02/01 14:55] – [pinout] kingkevin | ||
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| They each can driver 32 channels (up to 90V). | They each can driver 32 channels (up to 90V). | ||
| - | The VFD segments start already to be visible at 5V, but to get them bright you need higher voltages (I use 60V). | + | The VFD segments start already to be visible at 5V, but to get them bright you need higher voltages (I use 50V). |
| This is particularly important because you have to drive the digits and matrix one after each other. | This is particularly important because you have to drive the digits and matrix one after each other. | ||
| If you do it fast enough, thanks to the persistence of vision they will not appear as flickering. | If you do it fast enough, thanks to the persistence of vision they will not appear as flickering. | ||
| Line 73: | Line 73: | ||
| - DIN: to shift the data in | - DIN: to shift the data in | ||
| - CLK: clock to shift the data, on the clock rise | - CLK: clock to shift the data, on the clock rise | ||
| - | - NLE: enable latch on low | + | - #LE: enable latch on low (aka. negative LE, or NLE) |
| - STR: strobe the shifted data | - STR: strobe the shifted data | ||
| - | - GND: ground | + | - NC: not connected |
| {{ : | {{ : | ||
vfd_driver.txt · Last modified: 2024/01/07 17:49 by 127.0.0.1