mystery
  • Member for 6 years, 5 months
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Launch GUI to view current directory from command line?
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6 votes

This is not really RasPi specific and just depends on your OS / it's installed file manager. For Raspbian, that should be pcmanfm So pcmanfm .

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Building a simple DIY rc car, am I missing anything?
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4 votes

Does your motor driver support controlling 2 motors? Have you thought about talking to your motor driver(from the Pi)? keep in mind the Bluetooth does use up the Pi's UART! (see comments for more ...

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Controlling Raspberry PI zero device over the internet
3 votes

Set up a simple REST-API with PHP for example that triggers local controlling code. You may want to add some form of authentication tho like supplying a password in the request. A request would be ...

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How to Disable root account Direct Login after adding a password?
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3 votes

Disable remote login Run sudo nano /etc/ssh/sshd_config and set PermitRootLogin yes to 'no'. Reboot or restart the ssh service with /etc/init.d/ssh restart Disable root completely To completely ...

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how to program using registers on raspberrypi with C language?
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2 votes

I assume you are talking about running Linux. Yes it is, by mapping the physical addresses to virtual (userspace) memory. The broadcom datasheet will be your best friend while looking at this. Once ...

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Raspberry Pi for connecting two speakers controlled by smartphone
2 votes

This is for sure possible! Are the speakers active? (e.g. usual computer speakers) If they are, you have to carefully think about powering them. Using GPIO's for that is almost always a bad idea. ...

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Recommended Accel/Gryo/Compass Sensors for the Pi?
1 votes

I would recommend the BNO055 from bosch which offers incredibly stable values in its fusion modi while exposing a simple I2C interface. It is also widely used in Arduino projects and the like, making ...

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Regarding Raspberry Pi and water flow sensor integration
1 votes

This is no software issue. Look at the sensor's datasheet, it might be able to operate at 3.3V just fine. If it doesn't, you have to build a voltage divider between the sensor's output and your Pi's ...

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How to access raw Pi Camera data?
1 votes

I'm afraid I couldn't find any way to access the data before it is being saved - at least with standard drivers. Method 1 However, I assume your 'storage reasons' are wearing down the SD card? If so,...

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Why does i2c not work on my raspberry pi 3 model B?
1 votes

First of all, your code is missing pin initialization Do so by using void bcm2835_gpio_fsel(uint8_t pin, uint8_t mode) Also consider your access level If the library runs with any other effective ...

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Raspberry Pi cooling; Blow cold air in or suck the hot air out?
1 votes

As the hot air tends to get stuck inside the case i would guess sucking it out is more effective. Either way, you should make sure there's enough holes besides the fan for air to circulate.

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9 bit serial communication and parity error detection
1 votes

I can't really help you with the file descriptor as this stuff just did whatever it felt like in my experience. Although I dived pretty deep into hardware access. I have written kind of my own ...

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Interfacing with CANBUS, screen and GPIO
1 votes

The Pi should be perfectly capable of this. Your only problem is the CAN interface, as the Pi does not provide one by itself. You can either look for an external controller, which would need to be ...

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Install Packages on Raspberry Pi2 without wifi
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1 votes

Is your problem the internet connection, or connecting to the Pi? Given your host computer is connected to the internet, you can download the packages there, either by searching the debian repos (be ...

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Interfacing Aurduino with PI screen?
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0 votes

As already suggested by jsotola, don't take the arduinos output to the LCD and instead establish a common data connection between arduino and pi - like uart - to send the raw data the arduino is ...

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GPIO.wait_for_edge and signal.signal()
0 votes

Your GPIO.wait_for_edge(23, GPIO.FALLING) call blocks execution until defined pin change occurs. Commenting that out doesn't mean you are detecting desired signals, instead, your endless loop just ...

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Directly connect Lego EV3 infrared sensor to raspberry pi 3?
0 votes

Yes, it is possible. I would have advised you to get female sensor sockets to not have to cut your wire, though. However, go through the typical steps regarding I2C devices on the RasPi, like ...

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Read barcode via USB scanner then send it to database
0 votes

There is no reason it would not. Just be careful about the connection between Pi and server, as the messages might need to be queued in order to not lose packets when there are too many at once. I ...

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UART communication - AVR C to Raspberry Pi 2 Python
0 votes

Where is your ATmega initialization code? Have you verified the baud rate to be the same? What about the wiring? Depending on the Pi model, it may vary (also keep an eye on the different peripherals ...

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How to know when the pi finished shutting down
0 votes

Depends on your model. The Pi2's green LED will flash 10 times(rather slowly) and stay unlit after that. The red power LED will still be on after poweroff.

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