The Sociologist

I'm looking into purchasing a widescreen monitor, similar to the Acer x34 or the LG UC87c. I have a variety of uses for the computer from competitive CS:GO, content creation, and word processing. The curve is nice but not necessary. If you have one yourself I'd love to hear some opinions on the features that certain brands bring up. Thanks in advance.

Almost any Ducky Shine or Das Keyboard.

Hi, I was wondering if there was any way to connect a fingerprint sensor with the Raspberry Pi such as this one; https://www.adafruit.com/products/751, or something else. As of now I understand that its possible to connect them to an Arduino but is there anyway they can be connected to a Raspberry Pi with something like the GPIO pins? Another option I've been some time reading about is the Linux based USB fingerprint scanning directory, /fprint. Thanks in advance!

Hi, I'm going to preface this by saying that I'm absolute noob to servos, PWM controls, and Raspberry Pi in general. I'm currently using Adafruit's 16 channel PWM Servo/LED HAT soldered to my Rasp Pi to connect two servos. The servos move but I can't seem to understand the commands and functions of the library they included in the guide: pwm.setPWM(channel, on, off) I've gotten them to move and then stop by putting the following in: pwm = PWM(0x40) pwm.setPWMFreq(60) pwm.setPWM(0,100,500) The frequency I'm assuming is the speed at which the servo moves. I understand what channel is, obviously sending the PWM signals to whichever channel the servo is connected to. However I cannot quite grasp what the on/off commands mean. All I know is that when they are set equal to each other (e.g. pwm.setPWM(0,500,500) the motor does not move. The on and off signals in that function don't seem to do anything at all and I'm confused on how to change pulse widths. Essentially, I want the first servo (a continuous rotation servo) to move a certain number of degrees (from what I understand this correlates to the ms the servo is running for), then the second servo (normal micro-servo) to move a certain number of degrees then back to its starting position, then I want the first servo to return back to its original position as well, completely sequentially. I was hoping somebody would explain the basics behind these functions, maybe how to write programs in order to complete the above, or show me another directory on Github (or something else) where a different directory and set of commands will work. It's import to note that the HAT is a form of the Adafruit PCA9685 chip. Here are some links to the stuff I mentioned above: Servo HAT: https://www.adafruit.com/product/2327 Tutorial: https://learn.adafruit.com/adafruit-16-channel-pwm-servo-hat-for-raspberry-pi/library-reference Continuous Rotation Servo: http://www.jameco.com/z/900-00008-Parallax-Continuous-Rotation-Servo_283039.html?CID=GOOG&gclid=CjwKEAiAn7HEBRDHwNqitoWqsQcSJAADWmI2dkPnipA2xvHFcIFgWEmdttSDgWUO_fXIvI3ryYRWNRoCcCDw_wcB Micro Servo: https://www.amazon.com/TowerPro-SG90-Micro-Servo-2pk/dp/B01608II3Q/ref=pd_lpo_21_bs_t_2/163-6850172-8295626?_encoding=UTF8&psc=1&refRID=WNWCW831X3V0AXMKDCM9

Thank you, this is a huge help.

Thank you, that's a huge help.

Ain't working either, it's a 403, could someone just tell me an approximate height for it?

Image isn't showing up, should I click on the datasheet on the Adafruit website.

I was just wondering how tall exactly a NEMA 17 stepper motor is. It says 44 mm, but I think that's just for the top part. I've never seen one in person, and I'm trying to 3D Model an enclosure that features one but I don't how tall it is. Thanks in advance!

Honestly, if you're going for higher resolution gaming, I would go with the r9 390 with it's 8 gigs. However if you're going to stick with 2560x1440p I would stick with the 970 for Nvidia's software.

I'm creating an automatic medicine dispenser for my school's science fair. One major aspect of it is a rotating cylinder actually containing the pills. There are holes in the cylinder that when match up with the dispensing holes will drop the medicine. Each pill will drop with micro-movements. But there are several holes for each type of medicine, so I need to program some icons on Linux that when triggered will turn the servo a certain number of degrees expelling the medicine. Is this even possible? How would I do this? Thank you in advance! P.S. I'm knew to Arduinos and Raspberries Pi's in general, so limited use of complex vocabulary would be appreciated but not necessary.

Disregard my last comment, I was thinking about the GTX 380, so I got confused. Had no idea OP was talking about Radeon 380.

Absolutely go with the 960. The 380 is outdated an will most likely end up breaking down faster. That and the new features that come with being 9xx card. Geforce Experience, G-Sync, and my personal favorite, Dynamic Super Resolution.

The RGB Lighting, *drools*

I'm talking about the cost of the display. Say I throw away my old monitor and buy a 1440p one. The cost of one is approximately anywhere from $300-600. Now I do have my shiny new display, but I'm about 500 bucks out, and I still need to buy a 4k monitor down the line, for another $800. It doesn't make sense to buy two expensive monitors, if I'm just going to keep on replacing them. I'd rather spend it on a somewhat reliable, cost-effective option and wait to buy the better one later.