RASPBERRY PI TTL - USB CONNECTION

 

You can operate your raspberry pi 'headless' over your network - but what about if you want a direct connection from your pc to the raspberry pi - well that is  fairly easy to accomplish

powering the raspberry pi

* however before we start - and this is very important - make sure that you power your raspberry pi from one source only

if you want to power the raspberry pi from the pc usb socket then disconnect the power supply that you would normally use

if you want to use the normal power supply then you must disconnect the 'vcc' connector from the rpio pin because thats the 5 volt power supply line

do not have both supplies connected at the same time ! *

if you plug the wi-fi dongle and the rtl1090 dongle into the raspberry when powering it from the pc usb port it may not provide sufficient power - but theres no reason you would want to use the rtl1090 dongle in this way - instead run dump1090 directly from the pc with the dongle in another usb port

if you don't fully understand what you are trying to achieve here then don't do it or ask for help

 

The first thing to do is obtain a serial port usb - ttl cable

You must use the correct one it's no good trying to make one up with some headers and a discarded mouse usb cable

The usb plugs actually has a serial conversion chip in them 

Click the pictures for links to two differnt suppliers

next download putty  ( for windows ) if you don't already have it

 

then  download the drivers for the ftdi chip usb - ttl cable

or

 here for the  for the pl2303  usb - ttl cable drivers

check the information which comes with your specific cable 

these are the  drivers needed to enable windows to communicate with the raspberry pi

find the raspberry pi i.p address you might need it for later

also you need to know the port the rpi is using - go into  control panel - device manager and  look under 'ports' and locate it

you can connect the cable  now to the rpi and the usb port of the pc

 

 

 

 

 

NOW WHAT ?

launch putty


under serial port enter com 6 ( if thats what you found under device manager )


under connection type tick serial

put the speed to 115200

click open and it should take you to the raspberry pi command line screen


if you have not changed it log into the raspberry pi using the following 

user name is : pi
password is : raspberry


that's all - you are now accessing your raspberry pi directly

 

le site est encore en construction - mais tous les liens travailleront