Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

We can't use A4 or A5 with the current firmware. #45

Merged
merged 2 commits into from
Aug 11, 2019
Merged

We can't use A4 or A5 with the current firmware. #45

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
c2235dd
We can't use A4 or A5 with the current firmware.
trickeydan Aug 9, 2019
64396e1
Clarify why we can't use A4 / A5
trickeydan Aug 11, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 3 additions & 1 deletion docs/source/api/arduino.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ In this mode, we can set binary values of ``0V`` or ``5V`` to the pin.

Certain sensors output analogue signals rather than digital ones, and so
have to be read differently. The arduino has six analogue inputs, which
are labelled ``A0`` to ``A5``.
are labelled ``A0`` to ``A3``.
Copy link

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Maybe also update the comment about how many inputs there are?

trickeydan marked this conversation as resolved.
Show resolved Hide resolved

.. Hint:: Analogue signals can have any voltage, while digital
signals can only take on one of two voltages. You can read more about
Expand All @@ -112,6 +112,8 @@ digital vs analogue signals `here <https://learn.sparkfun.com/tutorials/analog-v
.. Hint:: The values are the voltages read on the pins,
between 0 and 5.

.. Warning:: Pins ``A4`` and ``A5`` are reserved and cannot be used.

Ultrasound Sensors
------------------

Expand Down