Re: [neonixie-l] Seven digit Nixie project

[jpeakall]

If you are looking to reduce the pin count from the mcu, look at the 74HC595. Uses three mcu pins and can be cascaded for as many digits as you like, using only three pins. They are an SPI device so every mcu has some sample code kicking around.

Jonathan.

Mitch <mitc...@gmail.com> wrote:

Hi All,

I'm using 7, 2N3904 transistors with the collectors to VCC, emitters to each LED anode, and bases to seven microcontroller outputs, through a resistor. Is there a chip available with a similar function, to reduce the parts count?

Thanks in advance.

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