Thursday, August 21, 2014

Inertial Sensors: DualShock 4 vs Sixaxis/DS3 accelerometer/gyroscope chips

I was wondering what the difference was between the DS4 & DS3 sensors do I dug up the Datasheets of the Accelerometers & Gyroscope sensors. DS4 has a single IMU made up of a 3 axis digital accelerometer & a 3 axis digital gyroscope. Where DS3 used individual chips, a 3 axis analog accelerometer & a vibration gyro sensor.

Accelerometer g-force measurement range 

DS4 (programmable) ± 2 g, ± 4 g, ± 8 g, ± 16 g 


DS3 ± 2 g

Gyroscope angular rate measurement range

DS4 (programmable) ± 125°/s, ± 250°/s, ± 500°/s, ± 1000°/s, ± 2000°/s


DS3 ± 100°/s

Dualshock 4

DualShock 4's Bosch BMI055 6 axis inertial measurement unit 

Product description

The BMI055 is an ultra-small, 6 axis inertial sensor, consisting of: A digital, triaxial 12bit acceleration sensor and a digital, triaxial 16bit, ±2000°/s gyroscope. The BMI055 allows very low-noise measurement of angular rates and accelerations in 3 perpendicular axes and thus senses tilt, motion, shock and vibration in cellular phones, handhelds, computer peripherals, man-machine interfaces, remote and game controllers.
With its ultra-small footprint of only 3 mm x 4.5 mm the BMI055 is unique in the class of low-noise inertial measurement units. On top, the BMI055 integrates a multitude of features that facilitate its use especially in the area of motion detection applications, such as device orientation measurement, gaming, HMI and menu browser control.

  • Activity monitoring, step-counting
  • Navigation
  • Vibration measurement, also for active damping
  • Six-dimensional tracking of trajectories
  • Flat detection, tap sensing, menu scrolling
  • Tilt compensation for electronic compass
  • Advanced power management for mobile devices
  • Shock and free-fall detection
  • Image stabilization

DualShock 3 

DualShock3's Kionix KXPC4 (Accelerometer - 3-Axis)

Epson-Toyocom XV3500CB (Gyroscope Sensor)

Monday, August 18, 2014

PlayStation 4 controller Patent shows the DualShock 4's that could have been (DS4 ,PS4 )

DualShock 4 patent that had buttons on the grip & buttons under the d-pad & shape buttons.

And another design that would have had the analog sticks above the buttons

301 seems to be the DS4 that we ended up with.

Edit: there also was going to be LEDs around the face buttons. (must have been the Buzz devs idea)

I think I know where Sony was headed with the buttons inside of the grip of the DS4 prototype.

Friday, August 8, 2014

DualShock 4 Motion & Touch controls might be the straws that break the Xbox One's back.

Next Gen arrived with all 3 consoles coming equipped with new next gen control interfaces as standard. But sadly Microsoft has abandoned the Kinect as a standard part of the Xbox One to achieve a lower price that would match the PS4's $399 price tag. This seems like a good choice to some who don't like anything motion control related but in the end this will really hurt the Xbox One as a platform because we are at a time when Tablets & Smartphones are the home of all types of new games thanks to their touch screens & motion sensors & some of them become big hits. Without Kinect Xbox One will miss out on these crazy little games with non standard controls because devs will think twice about making games for the Xbox One that only a few can play & even then Kinect might not have been able to do the games justice. But PS4 having motion sensing & touch controls standard will be able to control these games in almost the same manner as a Tablet or Smartphone & better yet PS4 can introduce new gameplay ideas for devs to take advantage of making it a even better console to own than Xbox One even without the power advantage that it already has over the Xbox One.

Only time will tell but PS4 could be the Wii / NDS of this generation once devs start to making good use of it's non-standard controller.  

Friday, July 25, 2014

Without Kinect does Xbox One face the stigma of being seen as a redundant Console?

Without Kinect does Xbox One face the stigma of being seen as a redundant Console?

A Kinect-less Xbox One doesn't seem to have a good selling point or 'It Factor' next to it's closest competition.
  • There is exclusive titles but Halo seems to be the only one that will make a big difference in the line up so far that could make the Xbox One stand out. 
  • No price advantage that could make it the lowest hanging fruit for people who just want a new console.
  • No technical advantages that will make games look or play better compared to it's competition (besides the push for cloud computing).
  • There wasn't a years head-start that would make it the more established console on the market with more games & developers having a better grip on the hardware.
  • It's not aimed at a different market from it's competition where it could escape the head to head comparison in which it pretty much comes up short in every area. 
  • It's not a smaller design making it easier to carry around & better for kids/teens who take their consoles with them from place to place.

Xbox One with Kinect was a vision that a lot of people didn't agree with but at least there was a vision before. Now it seems to be a question of "why is the Xbox One here?" & I have a scary feeling that Microsoft & some devs are starting to ask this same question.

Xbox One remind me a lot of the Sega Saturn.
Priced $100 more at launch then dropped the price to match the competition, 3rd party devs have a hurdle to jump over vs making the same game for the other system and it hasn't really made a case for it's self besides having exclusives but that didn't help Saturn much because people was able to find games that filled the void on the PS1.

Wednesday, June 4, 2014

Xbox One's June software dev kit gives devs access to more GPU bandwidth