From 17b7959f3f32ede5656258e0b70c8ff3b2357409 Mon Sep 17 00:00:00 2001
From: "Mark A. Yoder" <Mark.A.Yoder@Rose-Hulman.edu>
Date: Thu, 24 Aug 2023 16:11:14 -0400
Subject: [PATCH] Cleaning up formatting
---
intro/blinkLED.rst | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/intro/blinkLED.rst b/intro/blinkLED.rst
index 8d6879a0..5dd02852 100644
--- a/intro/blinkLED.rst
+++ b/intro/blinkLED.rst
@@ -38,7 +38,7 @@ Here you have a choice. If you want a graphical approach,
choose the ``VS Code`` tab. If you want a command line
and are running Linux on your host,
take the ``ssh (Linux/Mac)`` tab. Finally take the
-``Windown (Putty)`` tab for command line from windows.
+``putty (Windows)`` tab for command line from windows.
.. tabs::
@@ -48,6 +48,7 @@ take the ``ssh (Linux/Mac)`` tab. Finally take the
(https://code.visualstudio.com/) installed and
running. To access it, open a web browse on
your host computer and browse to: ``192.168.7.2:3000``
+ (use ``192.168.6.2:3000`` for the Mac)
and you will see something like:
.. figure:: figures/vscode1.png
@@ -109,7 +110,7 @@ take the ``ssh (Linux/Mac)`` tab. Finally take the
Either way, use the password ``temppwd``.
- .. group-tab:: Windows (Putty)
+ .. group-tab:: putty (Windows)
If you are running Window you need to run an ``ssh`` client
to connect to the Beagle. I suggest you use ``putty``.
@@ -123,6 +124,7 @@ take the ``ssh (Linux/Mac)`` tab. Finally take the
and password ``temppwd``.
Blink an LED
+------------
Once logged in the rest is easy. First:
@@ -158,9 +160,10 @@ internal LEDs.
^c
Here you see a simple bash script that turns an LED
-on and off. Enter control-c to stop the script.
+on and off. Enter Ctrl+c to stop the script.
Blinking via Python
+-------------------
Here's a script that sequences the LEDs on and off.
@@ -191,9 +194,12 @@ Here's a script that sequences the LEDs on and off.
bone:~$ ./seqLEDs.py
^c
-Again, hit control-C to stop the script.
+Again, hit Ctrl+c to stop the script.
Blinking from Command Line
+--------------------------
+
+You can control the LEDs from the command line.
.. code-block:: shell-session
@@ -215,13 +221,13 @@ You can blink any of them. Let's try ``usr1``.
bone:~$ echo 0 > brightness
When you echo 1 into ``brightness`` the LED turns on.
-Echoing a 0 turns it off. Congratulations, you've blinked
-your first LED!
+Echoing a 0 turns it off.
Blinking other LEDs
+-------------------
You can blink the other LEDs by changing in to thier
-directories and doing the same.
+directories and doing the same. Let's blink the USR0 LED.
.. code-block:: shell-session
@@ -255,11 +261,14 @@ Try experimenting with some of the other triggers and see if you
can figure them out.
Another way to Blink an LED
+---------------------------
An interesting thing about Linux is there are often many ways
to do the same thing. For example, I can think of at least five ways to blink
an LED. Here's another way using the ``gpiod`` system.
+First see where the LEDs are attached.
+
.. code-block:: shell-session
bone:~$ gpioinfo | grep -e chip -ie usr
@@ -284,7 +293,7 @@ the ``gpioset`` command.
bone:~$ gpioset --mode=time --sec=2 1 22=1
bone:~$ gpioset --mode=time --sec=2 1 22=0
-The first command sets chip 1, line 22 (the usr1 led) to 1 (on) for
+The first command sets chip 1, line 22 (the usr1 LED) to 1 (on) for
2 seconds. The second command turns it off for 2 seconds.
Try it for the other LEDs.
--
GitLab