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Topic: Protocol latch (Read 753 times) previous topic - next topic

LuisSoares

Hi,

I´m looking for a cheap chip, that allows me to put in its outputs TTL levels 0 or 1, using UART protocol or other.

Basically the chip will latch a value that i send via protocol, until i send the next value.

Does anyone know something like this?

Cheers

Grumpy_Mike

It is not at all clear what you want to do.

I don't understand what you mean by "protocol". My understanding of that word is the way a sequence of bytes is arranged, but that does not fit in with what you want to do.

Are you talking about latching just 1 bit or a whole byte?

fungus


Hi,

I´m looking for a cheap chip, that allows me to put in its outputs TTL levels 0 or 1, using UART protocol or other.

Basically the chip will latch a value that i send via protocol, until i send the next value.

Does anyone know something like this?



74HC595...?

What's wrong with using an Arduino pin? That's what Arduinos are for.

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

CrossRoads

"using UART protocol or other"
I vote for other. UART has built in clock that samples the data to decide when to captures highs & lows.
Use shiftout() or SPI.transfer() to provide the clock and do the same into a shift register.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

dhenry

Quote
a cheap chip


You can program a 8pdip avr quickly for that.

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