From ac9f6f01c681bfb2bb6132f61e36d3974e89bde0 Mon Sep 17 00:00:00 2001 From: Jason Kridner <jkridner@beagleboard.org> Date: Tue, 27 Sep 2022 15:01:56 -0400 Subject: [PATCH] beaglebone-cookbook: fix kohm --- books/beaglebone-cookbook/04motors/motors.rst | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/books/beaglebone-cookbook/04motors/motors.rst b/books/beaglebone-cookbook/04motors/motors.rst index d12bd59d..a159a8db 100644 --- a/books/beaglebone-cookbook/04motors/motors.rst +++ b/books/beaglebone-cookbook/04motors/motors.rst @@ -3,6 +3,10 @@ Motors ######## +.. |kohm| replace:: kΩ + +.. |ohm| replace:: Ω + One of the many fun things about embedded computers is that you can move physical things with motors. But there are so many different kinds of motors (``servo``, ``stepper``, ``DC``), so how do you select the right one? @@ -52,10 +56,10 @@ To make the recipe, you will need: * Servo motor. * Breadboard and jumper wires. -* 1 kΩ resistor (optional) +* 1 |kohm| resistor (optional) * 5 V power supply (optional) -The 1 kΩ resistor isn't required, but it provides some protection to the general-purpose +The 1 |kohm| resistor isn't required, but it provides some protection to the general-purpose input/output (GPIO) pin in case the servo fails and draws a large current. Wire up your servo, as shown in :ref:`motors_servoMotor`. @@ -158,7 +162,7 @@ Here's what you will need: * 3 V to 5 V DC motor * Breadboard and jumper wires. -* 1 kΩ resistor. +* 1 |kohm| resistor. * Transistor 2N3904. * Diode 1N4001. * Power supply for the motor (optional) -- GitLab