Go to advanced search

by profbit
Thu Jan 03, 2019 5:31 am
Forum: Beginners
Topic: How to use Solenoid Lock 12V DC
Replies: 45
Views: 4593

How to use Solenoid Lock 12V DC

Hello, I'm new to this and I can't figure out how am I going to control the solenoid lock using raspberry (The wirings). I have an 8x AA Battery which is in total of 12V. I don't know where am I going to connect the black and red wire of solenoid lock. And the black and red wire of battery component...
by profbit
Wed Dec 12, 2018 5:34 am
Forum: Troubleshooting
Topic: Latest Stretch instqlled. No wireless interface found.
Replies: 3
Views: 193

Re: Latest Stretch instqlled. No wireless interface found.

Sorry for bumping this but I really need to know if it's a hardware problem. If then, how to fix it?
by profbit
Tue Dec 11, 2018 2:20 pm
Forum: Troubleshooting
Topic: Latest Stretch instqlled. No wireless interface found.
Replies: 3
Views: 193

Re: Latest Stretch instqlled. No wireless interface found.

Yes. going to raspi-config -> network options -> n2- wifi gives me
no wireless interface found.
by profbit
Tue Dec 11, 2018 2:07 pm
Forum: Troubleshooting
Topic: Latest Stretch instqlled. No wireless interface found.
Replies: 3
Views: 193

Latest Stretch instqlled. No wireless interface found.

Hello, I'm having trouble setting up my Wi-Fi after fresh installing Stretch using Etcher. I was able to connect through ethernet but cant connect to wifi since it shows no wireless interface found. I searched a lot of solutions but none worked. I guess those post are outdated. How am I going to fix...
by profbit
Fri Mar 09, 2018 1:42 pm
Forum: Troubleshooting
Topic: SG92R servo motor moves during power up.
Replies: 9
Views: 1024

Re: SG92R servo motor moves during power up.

Good day, thank you for your response. The reason is that I use servo as my lock a chest How much does it move? Does it move only one way? What if you change the locked position to the other end of travel? Does the move then become to lock rather than unlock? Yup it’s moving making it unlocked.
by profbit
Fri Mar 09, 2018 1:41 pm
Forum: Troubleshooting
Topic: SG92R servo motor moves during power up.
Replies: 9
Views: 1024

Re: SG92R servo motor moves during power up.

Most if not all servos twitch on power up its because you are supplying power to the control circuit in the servo but no PWM pulse to set a position, just a random high or low voltage pulse. Some add on driver boards for the pi have an option to set a default position for the servo on power up beca...
by profbit
Fri Mar 09, 2018 12:14 pm
Forum: Troubleshooting
Topic: SG92R servo motor moves during power up.
Replies: 9
Views: 1024

Re: SG92R servo motor moves during power up.

Good day,

thank you for your response. The reason is that I use servo as my lock a chest
by profbit
Fri Mar 09, 2018 11:15 am
Forum: Troubleshooting
Topic: SG92R servo motor moves during power up.
Replies: 9
Views: 1024

Re: SG92R servo motor moves during power up.

how do I add it?
can you link me a store page of recommended capacitor?
where should I solder/connect it?
by profbit
Thu Mar 08, 2018 12:51 pm
Forum: Troubleshooting
Topic: SG92R servo motor moves during power up.
Replies: 9
Views: 1024

SG92R servo motor moves during power up.

Good day, I'm in trouble everytime I power up my raspberry pi. My servo motor always moves because of the shock (i think). I've googled some sort of solutions which include adding resistor. I'm new with resistor, so I have here my set of questions: 1) is it true that resistor will fix my problem? 2)...
by profbit
Sat Feb 10, 2018 4:27 am
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Re: Using SG-5010

Done with it but with some problems. whenever i turned on or off my raspberry pi, the servo rotates randomly because of the spike on voltage. I’m thinking about using a resistor to prevent that. So, what kind of resistor should I use for SG5010 or SG92R to prevent the shock? Also, where should I con...
by profbit
Sun Jan 21, 2018 4:35 am
Forum: Beginners
Topic: servo motor as lock
Replies: 2
Views: 451

servo motor as lock

Hi i have a problem with my servo motor. I’ve already googled but still doesn’t work. All I want to do is rotate my servo for 90 degrees clockwise and another code to rotate it 90 degrees counterclockwise. My gpio pin is at 36. thanks for the help
by profbit
Fri Jan 19, 2018 1:02 am
Forum: Troubleshooting
Topic: Short in voltage
Replies: 2
Views: 505

Short in voltage

Good day, I’m having trouble powering my raspberry after using Usb-C port to Female Usb wire as the primary material and USB to USB to connect it to the adoptor to gain power. The reason why I do this is because I want to attach the RPi inside the box and put the female usb cable outside the surface...
by profbit
Mon Dec 04, 2017 3:02 pm
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Re: Using SG-5010

I bought a 4x AA battery component in order to power my servo motor since AA produces 1.5V and 5V is required to operate the servo. Now I’m wondering if its okay to solder the red wire of servo to the red wire of the battery component which is (+) and the black one of the battery component to the br...
by profbit
Mon Nov 27, 2017 12:35 am
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Re: Using SG-5010

can you help me find other way to connect the red ?
by profbit
Sun Nov 26, 2017 4:58 pm
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Re: Using SG-5010

Here’s my setup:
Image

and this is my servo
Image

where should I put the yellow, red, and brown cables put power and use it?
by profbit
Sat Nov 25, 2017 8:14 pm
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Re: Using SG-5010

where should I put the wirings? i only have gpio 19, 16,gpio 19, 16, 26, 20, gnd, gpio 21 left
because of the lcd screen.
by profbit
Sat Nov 25, 2017 5:32 pm
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Re: Using SG-5010

I have 3.5" lcd screen connect with rpi. what now
by profbit
Sat Nov 25, 2017 4:58 pm
Forum: Beginners
Topic: Using SG-5010
Replies: 13
Views: 1514

Using SG-5010

Good day, I have a SG-5010 servo motor for my raspberry pi. Its purpose is to serve as a lock for my chest. Is it possible to use the raspberry pi as the power supply for it? thanks
by profbit
Tue Nov 07, 2017 10:22 am
Forum: Beginners
Topic: Stop infinite loop from startup console
Replies: 13
Views: 2101

Re: Stop infinite loop from startup console

I’ve edited the .bashrc file then started running a script on startup so that happens. is it possible to edit the .bashrc file by connecting sd card to pc? Not on Windows, but you can do it with Linux. If you don't have a Linux PC you could boot most PCs from a Linux Live USB stick, or put another ...
by profbit
Tue Nov 07, 2017 10:01 am
Forum: Beginners
Topic: Stop infinite loop from startup console
Replies: 13
Views: 2101

Re: Stop infinite loop from startup console

I’ve edited the .bashrc file then started running a script on startup so that happens. is it possible to edit the .bashrc file by connecting sd card to pc?
by profbit
Tue Nov 07, 2017 8:08 am
Forum: Beginners
Topic: Stop infinite loop from startup console
Replies: 13
Views: 2101

Re: Stop infinite loop from startup console

profbit wrote:
Tue Nov 07, 2017 8:06 am
KLL wrote:
Tue Nov 07, 2017 7:59 am
does
[ALT][F2]
give you anything?
If I remembered it correctly, it shows me tty2 login and I’m a bit scared on what it is. I don’t even know the pw.
btw my startup screen is console.
by profbit
Tue Nov 07, 2017 8:06 am
Forum: Beginners
Topic: Stop infinite loop from startup console
Replies: 13
Views: 2101

Re: Stop infinite loop from startup console

KLL wrote:
Tue Nov 07, 2017 7:59 am
does
[ALT][F2]
give you anything?
If I remembered it correctly, it shows me tty2 login and I’m a bit scared on what it is. I don’t even know the pw.
by profbit
Tue Nov 07, 2017 7:50 am
Forum: Beginners
Topic: Stop infinite loop from startup console
Replies: 13
Views: 2101

Re: Stop infinite loop from startup console

to repair ?what? you have messed up -a- you could try to login remote by SSH if that is enabled -b- use that SD in card reader and a working system SD if you not find the reason for that you anyway need a new setup no no. the script is running then I can’t stop it since it’s on startup. im looking ...
by profbit
Tue Nov 07, 2017 4:02 am
Forum: Beginners
Topic: Stop infinite loop from startup console
Replies: 13
Views: 2101

Stop infinite loop from startup console

I’m having trouble in stopping infinite loop on startup console.
when I tried ctrl c or ctrl z or alt. it shows weird text. What is the command so that I can get back to the command line [[email protected]:] part? thanks
by profbit
Sun Jul 09, 2017 12:53 am
Forum: Troubleshooting
Topic: OpenCV with Facial Recognition
Replies: 1
Views: 2310

Re: OpenCV with Facial Recognition

got the same issue before.
just make sure you're the haarcascade path is correct

Go to advanced search