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by Pedro_Lopes
Tue May 21, 2019 8:09 am
Forum: Português
Topic: TeamViewer 9
Replies: 5
Views: 471

Re: TeamViewer 9

Dúvidas é no forum.
by Pedro_Lopes
Fri May 17, 2019 3:28 pm
Forum: Português
Topic: TeamViewer 9
Replies: 5
Views: 471

Re: TeamViewer 9

wget http://download.teamviewer.com/download ... _armhf.deb
sudo dpkg -i teamviewer-host_armhf.deb
sudo apt-get -f install
sudo teamviewer daemon enable
sudo teamviewer passwd yourpassword
by Pedro_Lopes
Wed Apr 03, 2019 11:59 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Relay Board - LEDs glow on power up
Replies: 11
Views: 520

Re: Relay Board - LEDs glow on power up

The relays seem GPIO controlled. The LED glowing indicates a floating state of the GPIO PIN, therefore, is normal.

Try setting the GPIO at boot, as stated in other answer.
by Pedro_Lopes
Tue Apr 02, 2019 9:44 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Relay Board - LEDs glow on power up
Replies: 11
Views: 520

Re: Relay Board - LEDs glow on power up

Is it a USB relay board? Can you post your relay board model and connections?
by Pedro_Lopes
Mon Mar 11, 2019 12:48 pm
Forum: Beginners
Topic: play audiofile via GPIO and reedswitch
Replies: 4
Views: 195

Re: play audiofile via GPIO and reedswitch

Hello.

For playing audio via GPIO, maybe you can check out my Raspberry Pi Zero W Scary Halloween Ghost project: https://www.hackster.io/pedromflopes
by Pedro_Lopes
Wed Feb 27, 2019 10:18 am
Forum: General discussion
Topic: Need help using the accelerometer!!!!!
Replies: 5
Views: 161

Re: Need help using the accelerometer!!!!!

cdog09 wrote:
Wed Feb 27, 2019 1:48 am
How can I make the LEDs display a horizontal line the moves up and down when I physically move the raspberry pi up and down
You really need to describe your problem a lot more.
by Pedro_Lopes
Tue Jan 22, 2019 3:03 pm
Forum: General discussion
Topic: Will a Ethernet to USB adapter give me an extra port?
Replies: 19
Views: 1032

Re: Will a Ethernet to USB adapter give me an extra port?

Ethernet to USB adapter? Is there such thing? :?:
by Pedro_Lopes
Tue Jan 22, 2019 3:00 pm
Forum: Automation, sensing and robotics
Topic: Line following sensor overheating
Replies: 2
Views: 245

Re: Line following sensor overheating

Can you post your connections schematic?
by Pedro_Lopes
Thu Nov 08, 2018 5:08 pm
Forum: Beginners
Topic: Relay board and back emf issue
Replies: 18
Views: 972

Re: Relay board and back emf issue

Yes, i think you are correct, but your relay board should provide isolation.

Try connecting a optocoupler to the GPIO, and drive the relay through the optocoupler. This way you will be 100% sure that the GPIO is isolated from the relay coil.
by Pedro_Lopes
Thu Nov 08, 2018 10:11 am
Forum: Beginners
Topic: Relay board and back emf issue
Replies: 18
Views: 972

Re: Relay board and back emf issue

satish.gunjal wrote:
Thu Nov 08, 2018 1:43 am
Pedro_Lopes wrote:
Wed Nov 07, 2018 5:42 pm
Without the fan's connected to the relay, do you have the same problem?
No. Without fan relay board works fine.
If without FAN's connected works fine, it's not EMF issue. Are you using the same power supply for FAN's and Raspberry Pi? If yes, try with separated power supply.
by Pedro_Lopes
Wed Nov 07, 2018 5:42 pm
Forum: Beginners
Topic: Relay board and back emf issue
Replies: 18
Views: 972

Re: Relay board and back emf issue

Without the fan's connected to the relay, do you have the same problem?
by Pedro_Lopes
Wed Nov 07, 2018 5:35 pm
Forum: Beginners
Topic: Using the Syren 10A Motor Driver with a Peltier element
Replies: 18
Views: 673

Re: Using the Syren 10A Motor Driver with a Peltier element

Why not simply use a power mosfet to control the peltier module through PWM?
by Pedro_Lopes
Tue Oct 30, 2018 12:08 pm
Forum: Português
Topic: Sensor para contagem de garrafas
Replies: 1
Views: 3533

Re: Sensor para contagem de garrafas

Um sensor ultrasons seria o mais adequado, na minha opinião.
by Pedro_Lopes
Mon Oct 29, 2018 12:03 pm
Forum: Automation, sensing and robotics
Topic: Parking sensors
Replies: 2
Views: 760

Re: Parking sensors

Depends on the electrical characteristics of the sensors. Can you post them? It will be the starting point to think of a solution.
by Pedro_Lopes
Fri Oct 26, 2018 10:51 am
Forum: General discussion
Topic: Is it safe to use this battery with my pi zero?
Replies: 8
Views: 696

Re: Is it safe to use this battery with my pi zero?

Use a powerbank. It will provide stable 5V output and you can connect it directly to the micro USB input.
by Pedro_Lopes
Wed Oct 24, 2018 10:42 am
Forum: Automation, sensing and robotics
Topic: Raspberry Pi ball tracking
Replies: 3
Views: 1717

Re: Raspberry Pi ball tracking

Why not use a camera + OpenCV?

Checkout one of my projects on Hackster.io for example (link in my signature)
by Pedro_Lopes
Wed Oct 24, 2018 8:55 am
Forum: Python
Topic: writing data to .csv file when a rfid tag is scanned by the user
Replies: 6
Views: 1109

Re: writing data to .csv file when a rfid tag is scanned by the user

Also post database function well indented, it seems that you have a infinite loop, and close the file on the first loop.
by Pedro_Lopes
Wed Oct 24, 2018 8:51 am
Forum: Python
Topic: writing data to .csv file when a rfid tag is scanned by the user
Replies: 6
Views: 1109

Re: writing data to .csv file when a rfid tag is scanned by the user

Looks like the file isn't open for some reason. Try running your program with sudo and post back the result.
by Pedro_Lopes
Tue Oct 23, 2018 9:44 am
Forum: Other projects
Topic: Surveillance with Phone + App Android
Replies: 5
Views: 1259

Re: Surveillance with Phone + App Android

OpenCV as software.
by Pedro_Lopes
Mon Oct 22, 2018 1:39 pm
Forum: Other projects
Topic: Raspberry Pi Zero W scary Halloween Ghost
Replies: 0
Views: 1143

Raspberry Pi Zero W scary Halloween Ghost

Hello.

Just showing off my latest project: https://www.youtube.com/watch?v=F30RjWSvE70

Instructions here: https://www.hackster.io/pedromflopes
by Pedro_Lopes
Mon Dec 19, 2016 8:01 am
Forum: Automation, sensing and robotics
Topic: Need your advice on my cool project!
Replies: 12
Views: 2346

Re: Need your advice on my cool project!

Hello.

I think you should explain a little bit more what you are trying to do.

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