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A10 Mod: Anyone Know How To Keep The Screen Bright When Lights Are Off?
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player Offline

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Machine: Resmed A10 Autoset For Her
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Sex: Male
Location: Canada

Post: #1
A10 Mod: Anyone Know How To Keep The Screen Bright When Lights Are Off?
I hate the way the screen is basically unreadable when the lights are off.
It defies logic the have it always dark when the room is dark, and bright when the room is bright. No option... What idiot engineer designed that piece of genius? I know what flawed logic they used, but for me, I want to look at it in the dark, so it forces me to turn a bright light on.

Please tell me someone knows how to trick the sensor...
11-07-2015 10:51 PM
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AlanE Offline

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Post: #2
RE: A10 Mod: Anyone Know How To Keep The Screen Bright When Lights Are Off?
I understand what you mean. It is hard to read at night.

The light sensor is just a basic photoresistor. They usually decrease in resistance the more light you add.

[Image: photoresistor.jpg]

You can either tape a small LED to the light sensor here

[Image: airsense-10-autoset_lightsensor.jpg]

or you'll need to open it up and measure the resistance across the sensor in normal daylight and hook up a resistor close to that value. Current follows the path of least resistance and the sensor will have higher resistance at night, higher than the resistor you are putting in place of it. It may work by just shorting it but that could be bad for the circuit.

Down side to this is it will also take longer for the screen to go dark at night.



Using FlashAir W-03 SD card in machine. Access through wifi with FlashPAP or Sleep Master utilities.

I wanted to learn Binary so I enrolled in Binary 101. I seemed to have missed the first four courses. Big Grinnie
(This post was last modified: 11-08-2015 10:27 AM by AlanE.)
11-08-2015 10:21 AM
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PoolQ Offline

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Post: #3
RE: A10 Mod: Anyone Know How To Keep The Screen Bright When Lights Are Off?
"The light sensor is just a basic photoresistor" have you opened it up and KNOW for sure this is what they are using and its not a photo diode/transistor or even an IC sensor.

The brightness steps to off and is not linear so my guess is that the light sensor and the display backlight have the micro in between and what you are describing will not work and could cause damage.
11-08-2015 01:14 PM
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AlanE Offline

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Posts: 1,499
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Machine: ResMed AirSense 10 Autoset
Mask Type: Nasal pillows
Mask Make & Model: P10 & Mirage Liberty backup
Humidifier: Built-in
CPAP Pressure: 10-14
CPAP Software: ResScan SleepyHead

Other Comments: ʕ•ᴥ•ʔ So Long, and Thanks for All the Fish

Sex: Male
Location: Southwest Florida

Post: #4
RE: A10 Mod: Anyone Know How To Keep The Screen Bright When Lights Are Off?
Perhaps true. Only one way to find out.



Using FlashAir W-03 SD card in machine. Access through wifi with FlashPAP or Sleep Master utilities.

I wanted to learn Binary so I enrolled in Binary 101. I seemed to have missed the first four courses. Big Grinnie
11-08-2015 01:57 PM
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