Recent content by Liad

Hi! I'm currently using SN75179BP to convert RS-422 communication to UART, allowing communication from my Arduino to an RS-422 device. I need to isolate that device from my arduino+driver/receiver circuit. Does anyone know a good optocoupler solution for RS-422 lines? any...

Hi, I need to get data from some sensors over a ethernet connection. I found that application idea on microchip site: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2505&param=en535727#P26_1312 How do I build that circuit?

Hi, I'm looking for a 6 pos, 2Amps, mechanical rotary switch that with every turn will short another contact to all of the other contacts that came before... For example, if it's on position 3, legs 1, 2 and 3 will be shorthand all together. Thanks.

Thanks for all your help! I'll start working on it. Liad.

Can I control the Arduino with c#?

Hey, I need to find a way to control via usb something like 20 ins and outs. Don't have any idea what to do next. :\ Any help is more than welcomed. Liad.

Which microcontroller has enough pins for all of my demands? Can you give me a specific model?

Hey! I want to build a circuit to control a light bulb in such a way that Ill be able to choose the time that it'll be on [choosing from 5/10/15/20 min] and off [again, choosing from 5/10/15/20 min]. I would also like to have a counter showing how much time I have till it'll change from on...

Hey! I need to build 10 7segment clocks that will be synchronized among themselves. [Just a regular clock that will display the current hour, only 10 of those, and in different places in the room]. I thought about building a microProcessor-based clocks that will be synchronized among...

Hey! How can I calculate what should be the cable diameter by the amper / watt? Best Regards, Liad.

How can I build a computer-based 220v dimmer? I'm not asking about the programming part, but the electronic.

you can say that...:S ahm...itll only be one pulse and then...nothing, till the next pulse.:)

yes...:) any circuit that his input will be 1 pulse and his output will be a dc voltage in the same amplitude and will stay that way until the circuit will get another pulse in his input.

Hey, I need to find a way to convert a pulse that can be in any amplitude from 0 to 5v and output DC voltage at the same amplitude. any ideas? :) Liad.

As for damaging the phones - they wouldn be connected for a long time and I don't really care about them. :smile: A for noise - as long the line will work and I'll be able to understand what the person in the other end says - I'm ok with it. The phones are just plain phones, and 24v is...