LowPowerLab Forum

Hardware support => ATXRaspi => Topic started by: arjanv on March 30, 2017, 10:33:13 AM

Title: ATXRaspi reset and power switch
Post by: arjanv on March 30, 2017, 10:33:13 AM
Hi,

is it possible to use a momentary button for on/off and a momentary button for reset?

see this picture: https://lowpowerlab.com/wp-content/uploads/2016/09/ATXRaspi_GPIO_latching_with_reset2.png
but want to use a momentary button for on/off.

is this possible? or do i simply connect the reset switch with the 10k resistor? or no resistor at all?

thanks
Title: Re: ATXRaspi reset and power switch
Post by: Felix on March 30, 2017, 01:22:21 PM
You could, but basically they would do the same thing. If you held the reset too long, it would issue a shutdown. You could build a circuit to avoid that but its adding to the complexity.
Basically the button input is a single one and the board interprets a shutdown/reboot based on how long the button is pressed.
As clearly stated in the guide, the 10K resistor will simply put the board in LATCHING mode rather than MOMENTARY.