Home  |  Contents 

Microcontroller and PC projects
  Forum Index : Microcontroller and PC projects         Section
Subject Topic: Armmite H7: Full release & documentation Post ReplyPost New Topic
<< Prev Page of 16
Author
Message << Prev Topic | Next Topic >>
KeepIS
Senior Member
Senior Member
Avatar

Joined: 13 October 2014
Location: Australia
Online Status: Offline
Posts: 204
Posted: 16 October 2018 at 11:51am | IP Logged Quote KeepIS

Anyone else tried a keyboard with success?

I have two that are the typical USB 5V units, will they work at 3.3v or do they need a level shifter and 3v enabled switched 5v?

OBVIOUSLY: I have tried the keyboards on a PC and they work fine, yes I have the option usbkeyboard set correctly, yes they are wired up correctly.

__________________
It's all too hard.


Back to Top View KeepIS's Profile Search for other posts by KeepIS
 
Azure
Guru
Guru
Avatar

Joined: 09 November 2017
Location: Australia
Online Status: Offline
Posts: 431
Posted: 16 October 2018 at 12:50pm | IP Logged Quote Azure

USB devices are 5V not 3.3V and the power pins on a USB connector are 5V.
Back to Top View Azure's Profile Search for other posts by Azure
 
KeepIS
Senior Member
Senior Member
Avatar

Joined: 13 October 2014
Location: Australia
Online Status: Offline
Posts: 204
Posted: 16 October 2018 at 1:32pm | IP Logged Quote KeepIS

Azure wrote:
USB devices are 5V not 3.3V and the power pins on a USB connector are 5V.


KeepIS wrote:

I have two that are the typical USB 5V units


So back to my original question. Who has a USB keyboard running on the Armmite and what did you do to get it going? What USB keyboard did you use?


__________________
It's all too hard.
Back to Top View KeepIS's Profile Search for other posts by KeepIS
 
Tinine
Regular Member
Regular Member


Joined: 30 March 2016
Location: United Kingdom
Online Status: Offline
Posts: 69
Posted: 16 October 2018 at 4:27pm | IP Logged Quote Tinine

CaptainBoing wrote:
for a start:

https://www.youtube.com/watch?v=FtQdO4To1vg


Very nice, thank you

I think I will go the whole hog with a 9" display

Edit: Any well trusted sources here in the UK or just any China source?


Edited by Tinine on 16 October 2018 at 4:30pm
Back to Top View Tinine's Profile Search for other posts by Tinine
 
matherp
Guru
Guru


Joined: 11 December 2012
Location: United Kingdom
Online Status: Offline
Posts: 2340
Posted: 16 October 2018 at 5:00pm | IP Logged Quote matherp

Quote:
Who has a USB keyboard running on the Armmite and what did you do to get it going? What USB keyboard did you use?


Me obviously, just set the OPTION as per the manual. I'm using a standard Lenovo keyboard KU-0225 with a type A female to micro-USB adaptor. This then plugs directly into the Nucleo CNI3 connector which is automatically powered when you set the option (green led lights)

Edited by matherp on 16 October 2018 at 6:46pm
Back to Top View matherp's Profile Search for other posts by matherp
 


If you wish to post a reply to this topic you must first login
If you are not already registered you must first register

  Search the forums using Google.
<< Prev Page of 16
In the news...
 
Post ReplyPost New Topic
Printable version Printable version
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Powered by Web Wiz Forums version 7.8
Copyright ©2001-2004 Web Wiz Guide

This page was generated in 0.1250 seconds.
Privacy Policy     Process times : 0, 0.02, 0, 0.11