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Wiring Hardware >> Tangible computing >> RS232 vs TTL levels
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Message started by yunkee on 07/24/08 at 19:35:41

Title: RS232 vs TTL levels
Post by yunkee on 07/24/08 at 19:35:41
What is the difference between RS232 and TTL levels for serial communication? Also, what type does the Wiring board have? Thanks a lot.

Title: Re: RS232 vs TTL levels
Post by barragan on 07/26/08 at 01:08:53
here is a good explanation for it: http://botrics.com/support/cereb/manual/chapter3/3-5-serial.html
Wiring has 2 hardware serial ports available in specific pins: http://wiring.org.co/hardware/index.html#050
Both serials in Wiring are TTL level signals. The First serial port is also connected to a USB Chip that converts the TTL Serial to USB signals to connect it to a computer USB port.

Title: Re: RS232 vs TTL levels
Post by yunkee on 07/28/08 at 15:42:22
thank you....
looks like I'll have to get an ttl to rs232 converter

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