Power draw on Standby

jscoulter

Member
Licensed User
Longtime User
Hi Guys.
I am building a wee computer for my scooter based on a site I saw where a guy had built a scooterputer using an arduino and a few devices.
I realised, I still need an arduino for a couple of parts, BUT for the touch screen, GPS, accelerometer and other sensors, an old-ish android phone I have will do exactly what I want ! (and some what cheaper) and I can still interact with the Arduino.
ANYWAY, the question I have is, does anyone know how much power is drawn when a phone is on standby? I see this as the flaw in my project. I have built a power supply circuit to provide power to the phone when the scooter is running, but I dont want to have to have it boot up everyday etc.
So I thought, well maybe I can ask if anyone knows what sort of power is drawn on standby and I can either have it feed that off the scooter battery or prob. provide an alternative power like 2 penlight batteries etc......

Hope that makes sense :)

Jeremy
 

warwound

Expert
Licensed User
Longtime User
One thing you can do is go to the device Settings, choose Wireless & network and then WiFi settings , now click the Menu key.

Do you get an Advanced option?
If so select Advanced and look for WiFi Sleep policy.

Set it to 'When screen turns off' and the device wireless will be disabled when the device screen is off/the device is in standby.

The other option 'Never' means the wireless will always be enabled - so if you put the device into standby overnight, it's wireless will be active all that time.

That should save a few milli-amps of battery power.

Martin.
 
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