sensor

I want to detect if the device is facing up. (Not angled but flat to the ground facing up). On some devices for facing up, z value will return values between 9~10. (Most devices) However, on Nexus 7, for facing up, z value will return values between 6~8. My code was: if(z_value > 9.0) { // device facing up } else { // device is in angled } However, above code doesn't work anymore. Since Nexus7 doesn't reach z_value of 9. How can I detect if the device is facing (entirely) up or not. (not asking z_value > 0) My full code is below: @Override protected void onStart() { super.onStart(); try {

I'm developing an Android game that uses the orientation sensor to get the rotation of the device (to roll a ball). I have two devices that I test apps on, one is a Samsung Infuse (phone) and the other is an Asus Eee Pad Transformer TF101 (tablet). The app runs in landscape on both devices. The problem is that on the Eee Pad, the orientation is measured with the device sideways (landscape mode) while the Infuse measures in upright (portrait) no matter what I do. This makes is so the ball moves left when I tilt my Infuse left, but when I tilt the Eee Pad left, the ball moves up or down. I can

I looked over SensorManager and was still unsure, how do I detect if the phone is looking at true north (or any other direction for that matter). If you are just looking for a sample, the publishers of Professional Android 2 Application Development have all their example code available for download and there is a compass application in chapter 14. 来源： https://stackoverflow.com/questions/2808811/determining-north-using-the-android-phone

I was just wondering whether iPhone developement allows light sensors to be used, as buttons or action elements?? I found this link online... Possible to use Light Sensor as a Button? [Archive] - Touch Arcade If anyone could shed some light on the issue, I'd appreciate the help? Cheers. Divanshu. An official answer by an Apple rep is on the Apple Dev Forums (login required): There's no supported way to get at the ambient light sensor. If you'd like to see such support added in the future, I encourage you to file a bug describing your requirements. While we may have seen similar requests many

So I've properly attached DHT22 Humidity Sensor to my BeagleBone Black Rev C. I'm running OS Mavericks on my MacBook Pro and I followed the directions provided by Adafruit on how to use my DHT22 The website I used was pretty clear: https://learn.adafruit.com/dht-humidity-sensing-on-raspberry-pi-with-gdocs-logging/software-install-updated Also here is the github files I cloned: https://github.com/adafruit/Adafruit_Python_DHT I put in these lines: git clone https://github.com/adafruit/Adafruit_Python_DHT.git cd Adafruit_Python_DHT sudo apt-get upgrade sudo apt-get install build-essential python

I want to use a SensorTag 2 so that it is sitting there broadcasting it's data (and, critically connectable over bluetooth) from when it's turned on to when\if I ever turn it off. Out of the box, the tag is set to only advertise over Bluetooth for a few mins which means that when the connection eventually fails or when the device connected to the tag boots etc etc you can't connect again without physically visiting the tag and resetting it. I see there is firmware that the myWeatherCenter people have created that lets the tag work as a weather station by basically setting it to advertise