Spy software wiring diagram for 7al

 

Do you need - Networked Serial
Electronics? Metering, Controllers,
Callpoints, Fire panels, access
control, lighting, robotics
--We design and build--
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When the lines are handshake looped, the RTS output from the PC immediately activates the CTS input - so the PC effectively controls its own handshaking... which leads in to what each of the pins on the RS232 connector (or EIA574 in the case of the DE9) actually does - we have a proper description of all the pins further down this page.

Connecting together two serial devices involves connecting the Rx of one device to the Tx of the other, and vice versa. The diagram below indicates how you would go about connecting two PC's together, without handshaking.

Spy software wiring diagram for 7al

WiringPi2 for Python is an excellent GPIO handling system written by Gordon ‘Drogon’ Henderson and packaged for Python by Phil ‘Gadgetoid’ Howard . It uses Arduino-like scripting language. For simple GPIO work, I still tend to use RPi.GPIO because that’s what I first got started with, but WiringPi is a very good alternative. It currently has more features.

One of the reasons (I think) the take-up for WiringPi-Python has been a bit slow, despite its richer feature set, is the lack of documentation. I’m hoping that this series of articles will provide documentation to open the door to more people using WiringPi 2 for Python. The basics in this first article should all work for both WiringPi and WiringPi 2 for Python.

If you’ve used my Gertboard Python software , you may well have used both the original WiringPi AND RPi.GPIO. WiringPi2 is an upgrade with more features added.

Do you need - Networked Serial
Electronics? Metering, Controllers,
Callpoints, Fire panels, access
control, lighting, robotics
--We design and build--
Call us now! (02)9925 0325

When the lines are handshake looped, the RTS output from the PC immediately activates the CTS input - so the PC effectively controls its own handshaking... which leads in to what each of the pins on the RS232 connector (or EIA574 in the case of the DE9) actually does - we have a proper description of all the pins further down this page.

Connecting together two serial devices involves connecting the Rx of one device to the Tx of the other, and vice versa. The diagram below indicates how you would go about connecting two PC's together, without handshaking.