Changes between Version 20 and Version 21 of construction_manual

Timestamp:

Feb 17, 2014, 7:09:19 PM (11 years ago)

Author:

smoser

Comment:

--

construction_manual

@@ -49 +49 @@
     - Connect the four wires coming from the TTL side of the level shifter to the IDC connector. Pin layout depends on the version of your Pi. See [http://www.raspberrypi-spy.co.uk/2012/06/simple-guide-to-the-rpi-gpio-header-and-pins/ GPIO Pins]. If you have a revision 2 Pi, this is the pin connection: Pin1=+3.3V, Pin6=GND, Pin8=TX, Pin9=RX. 
     - Disable console output and boot messages on the serial interface. See [http://www.irrational.net/2012/04/19/using-the-raspberry-pis-serial-port/ here] 
-   - Alternatively, use the Raspberry's GPIO and a RS232-Adapter (e.g [http://www.abelectronics.co.uk/products/3/Raspberry-Pi/29/Serial-Pi-RS232-Interface this one].
-    - use a micro usb plug, cut the cable to fit the length, remove the cable coating 3 cm before the open end. We will just use the red (+5V) and the black (GND) cable, cut the remaining two other away
-    - cut 3 cables, red (12V), black (GND) and a third color (5V)
-    - cut the RJ45 at the desired length, remove the cable coating 3 cm before the open end, cut away the cable for RJ45-Pin's 2,3 
-    - connect RJ45-Pin5 (usually blue) with 2, RJ45-Pin6 (usually white-green) with Pin3 and RJ45-Pin8 with Pin5 of a Female Sub-D plug
-    - solder RJ45-Pin's 4,7 with the two other black cables (GND)
-    - solder the red cable (12V) with RJ45-Pin1
+   - Alternatively, use the Raspberry's GPIO and a RS232-Adapter (e.g [http://www.abelectronics.co.uk/products/3/Raspberry-Pi/29/Serial-Pi-RS232-Interface this one]).
+    - use a micro usb plug, cut the cable to fit the length, remove the cable coating 3 cm before the open end. Since this cable serves just for power supply, we just use the red (+5V) and the black (GND) cable, cut the remaining two other away
+    - cut 3 cables to length, red (12V), black (GND) and a third color (5V)
+    - cut the RJ45 cable to length, remove the cable coating 3 cm before the open end, cut away the cables for RJ45-Pin's 2,3 
+    - connect RJ45-Pin5 (usually blue) with Pin 2 of a Female Sub-D plug
+    - connect RJ45-Pin6 (usually white-green) with Pin3 of a Female Sub-D plug
+    - connect RJ45-Pin8 with Pin5 of a Female Sub-D plug
+    - solder RJ45-Pin's 4,7 with the black cable of the micro USB plug and the other black cable (GND)
+    - solder RJ45-Pin1 with the red cable (12V) 
     - solder the third coloured cable (5V) with the red cable from the micro usb plug