Pages: [1]   Go Down
Author Topic: Turn Arduino on and off with tactile button  (Read 390 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 44
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi,

Does anybody know how to turn an Uno on and off using a tactile button? I have a membrane keypad, and i would like to use one of its buttons to control power to the board.

Thanks
Logged

SG
Offline Offline
Sr. Member
****
Karma: 11
Posts: 495
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Pololu Pushbutton Power Switch SV
http://www.pololu.com/catalog/product/750


« Last Edit: May 14, 2013, 08:29:53 pm by BillHo » Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 44
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote
Pololu Pushbutton Power Switch SV
http://www.pololu.com/catalog/product/750

I came across this whilst doing some research.

I would like to use an existing button on my keypad. I'm just not sure what can be added etc. to this.
Logged

SG
Offline Offline
Sr. Member
****
Karma: 11
Posts: 495
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Is your membrane keypad a matrix keypad? what is the resistance of the contact? it may not be used as a control for on/off switch.
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 44
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

No, it's not a matrix keypad, it is a customised pad i got from a friend (insulation resistance > 100 MΩ)
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 44
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hey guys,

Does anybody else have any ideas?

Cheers
Logged

nr Bundaberg, Australia
Offline Offline
Tesla Member
***
Karma: 126
Posts: 8471
Scattered showers my arse -- Noah, 2348BC.
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

latching relay or some clever work with FET or two.

I think Retrolefty had posted a good circuit using a relay before.

______
Rob
Logged

Rob Gray aka the GRAYnomad www.robgray.com

Pages: [1]   Go Up
Jump to: