From 882c2012376f94eca0d7bcea1af749bb487dd097 Mon Sep 17 00:00:00 2001 From: Shravika Mittal Date: Wed, 2 Aug 2017 19:05:14 +0530 Subject: [PATCH] Grammar edited --- tut-pullup.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tut-pullup.md b/tut-pullup.md index d19c89b..da424fa 100644 --- a/tut-pullup.md +++ b/tut-pullup.md @@ -1,6 +1,6 @@ # Pull- Pins -Suppose a pin is configures as an input. If nothing is connected to the pin and the program tries to read the state of the pin, it would need be in a 'floating' state i.e an unknown state. To prevent this, a pull-up or a pull-down state is defined. They are often used in the case of Buttons and Switches. +Suppose a pin is configured as an input. If nothing is connected to the pin and the program tries to read the state of the pin, it would be in a 'floating' state i.e an unknown state. To prevent this, a pull-up or a pull-down state is defined. They are often used in the case of Buttons and Switches. Pins 2-7 on both the Ports are available for interrupts.