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Leland Green

Discussion  - 
 
Do you know where to get a nice 3 amp, 5.2v power supply that will fit in a USA style wall plug in a power strip without blocking the other plugs?

I got some with a case I ordered (I believe it's called Zebra case, I can look it up if anyone wants to know) and I got these awesome power supplies with it. The wall wart does not block the other plugs at all, they have a USB plug and provide a cable with an on off switch for the micro USB.

Those are perfect power supplies, in my mind. They power the Raspberry Pi three perfectly and that on off switch makes it really nice! 😎

So can anyone point me to where I can buy some of these? Or, better yet, how would I search for that as a specification? (Teach a man to fish…. :-) 
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Leland Green's profile photoTim Rowledge's profile photo
13 comments
 
I got an Anker 60W usb psu; plenty of power to run 4 or 5 Pi and a Wombat breadboard. Something like $27 from Amazon.
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Gothic Card

Troubleshooting  - 
 
Not sure if I have a problem with my Raspberry Pi 3?

I am working my way through the CamJam EduKit 2, and am on Worksheet 4 - Light - getting readings from an LDR.

I have now tried this on a Raspberry Pi 3 and my model B+, on the B+ the readings stay stable, but on the Raspberry Pi 3 they go up and down.

I am using the same breadboard, wires, and components. Just swaping over the Raspberry Pi's.

The Video shows what is happening on the Raspberry Pi 3
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Gothic Card's profile photoLeland Green's profile photo
8 comments
 
Oh, if you don't have a three amp power supply, that could be the problem and perhaps you are actually under powering the sensor! :)
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I HATE waiting for couriers!

I have prototypes for two new Raspberry Pi add-on products coming, along with a larger production run of RoboPIC's (USB robot / dev board)

That reminds me, I have to write firmware for RoboPIC so it can be used from Pi's :-)

http://www.mikronauts.com/robot-controllers/robopic-18f4550/
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Roni Segoly

Discussion  - 
 
My English is not good enough for full instructable guide, but I have full End To End IOT system to control relay remotely from Web, including web and mobile Automation using IFTTT.
If anyone need the scripts you are welcome, it's quite easy setup
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Roni Segoly's profile photoLeland Green's profile photoGena Slash's profile photo
8 comments
 
I strongly recommend the Apache mod_python module! I have come to love it with one short project. If you know HTML and Python, you can do it! Have you checked out my PWM/servo web control demo? There's not much to it, although it may be slightly confusing at first in a couple of places, I think if you read through it, you can use that technology in any of your projects. I'm sure you could. :-)
Here's the link: https://github.com/lelandg/PWM-Servo-Hat-Through-Apache-Demo
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Poleposition

Tutorials/Guides  - 
 
The section is updated, this time around identifying all LED modules, (LED, BI COLOUR, RGB) available in the kits. Quite a challenge if you don't have a proper documentation. Follow me on +NotEnoughTECH #raspberrypi #sensors
Overview of modules from 37in1, 16in1 and 8in1 kits available from Amazon and Aliexpress resellers. Modules for Raspberry PI and Arduino
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Poleposition's profile photoDoorToDoorGeek “Stephen McLaughlin”'s profile photoo ak's profile photoTarun Singh's profile photo
 
Updated - How to use #DHT11 (and #DHT22 ) #sensor for RPI (beginners friendly!)
http://www.notenoughtech.com/rpi-sensors/sensor-dht11/
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Mike Redrobe

Software  - 
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2
Mike Redrobe's profile photoEllis Malave's profile photoLawrence Beasley's profile photo
 
Just added Berryboot and PINN installs
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good morning, I am looking for information about Raspberry Pi 3, if it is backed with standards such as the IEEE or other regulations, this in order to endorse a project at the university for use as a VoIP server or web server, could give me a hand, thanks for your attention
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Wes Stacey (GreenEnergy)'s profile photoWill Marone's profile photo
6 comments
 
Well, neither of us can know any of this. It's on +Juan Carlos Choque Alavi to do a bit of research on what his University's requirements are, and how well the Pi meets them.
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John Shovic

Tutorials/Guides  - 
Sun Tracking for more Solar Power - This article is the first of a four part series about building a Sun Tracker and measuring the results.
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Michael Noble's profile photo
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double zerocool

Discussion  - 
 
Is it good idea to use RPI3 as home firewall router? I know it has only one LAN port but can be use USB LAN adapter as second port.
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Daniel Bull's profile photo
13 comments
 
+double zerocool if your connection is 50Mb/s I wouldn't use a Pi, its really going to struggle. Look at "thin miniITX" boards they run on super low power and use real CPU's.
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About this community

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John Shovic

Hardware  - 
Finally, the missing pieces to the Raspberry Pi: Pi2Grover Interface, a Grove Analog To Digital Converter and a Digital Grove Expander
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Michael Davis's profile photoCésar Ramos's profile photo
 
Looks like it's going swimmingly, +John Shovic​. Looking forward to getting my boards. Congrats! 
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Do anyone have suggestions for my summer project related to Respberry Pi ?

I got a small list too :- 1- Pi in the sky
2- Air Quality Monitoring
3- Digital Wallet (for bitcoin)
4- Internet Doorbell 
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John Pagourtzis's profile photoBhavana Srinivas's profile photo
7 comments
 
Hey, you can build several interesting projects like a realtime security camera, a leap motion enabled robot dance, or a home automation system. https://www.pubnub.com/blog/tag/raspberry-pi/
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hi,
I am from India and would like to buy a raspberry pi zero please can anyone suggest a site.Most sites show 'Not in stock'
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Leland Green's profile photoJohn McGarey's profile photo
6 comments
 
No luck for me either. Meanwhile: http://whereismypizero.com
I found one in stock ONCE, but the seller wanted $5 for the board and $9 for the shipping, and you were only allowed one board.
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Walter Coria

Projects  - 
 
I'm working on a Raspberry Pi - Serial Com Port All in one unit

I have a 16 port StarTech USB Serial interface device. I want to be able to use my raspberry to remotely access the serial ports on all my switches and routers.
There is enough room inside to mount the pi and a DC/DC power converter. I will mount an external ethernet port or better yet use a new pi3 in adhoc wireless access(secured of course). Still got a bit to go. My problem is that the pi only sees 5 of the 16 serial ports. I don't need all 16 but it would be nice to have at least 8.

Here is what I see:
pi@raspberrypi:~ $ dmesg | grep tty
[ 0.000000] Kernel command line: 8250.nr_uarts=1 dma.dmachans=0x7f35 bcm2708_fb.fbwidth=1920 bcm2708_fb.fbheight=1200 bcm2709.boardrev=0xa22082 bcm2709.serial=0xc813849d smsc95xx.macaddr=B8:27:EB:13:84:9D bcm2708_fb.fbswap=1 bcm2709.uart_clock=48000000 vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000 dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[ 0.001284] console [tty1] enabled
[ 0.310948] console [ttyS0] disabled
[ 0.311067] 3f215040.uart: ttyS0 at MMIO 0x3f215040 (irq = 29, base_baud = 50000000) is a 16550
[ 1.508058] console [ttyS0] enabled
[ 2.560357] 3f201000.uart: ttyAMA0 at MMIO 0x3f201000 (irq = 83, base_baud = 0) is a PL011 rev2
[ 4.085090] systemd[1]: Expecting device dev-ttyS0.device...
[ 4.943877] systemd[1]: Starting system-getty.slice.
[ 4.964399] systemd[1]: Created slice system-getty.slice.
[ 4.978758] systemd[1]: Starting system-serial\x2dgetty.slice.
[ 5.000985] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 6.682431] usb 1-1.4.1: FTDI USB Serial Device converter now attached to ttyUSB0
[ 6.683547] usb 1-1.4.2: FTDI USB Serial Device converter now attached to ttyUSB1
[ 7.525374] usb 1-1.4.4.1: FTDI USB Serial Device converter now attached to ttyUSB2
[ 7.705396] usb 1-1.4.3.2: FTDI USB Serial Device converter now attached to ttyUSB3
[ 9.806548] usb 1-1.4.3.3: FTDI USB Serial Device converter now attached to ttyUSB4
pi@raspberrypi:~ $ dmesg | grep ftd
[ 6.680957] usbcore: registered new interface driver ftdi_sio
[ 6.681412] ftdi_sio 1-1.4.1:1.0: FTDI USB Serial Device converter detected
[ 6.682532] ftdi_sio 1-1.4.2:1.0: FTDI USB Serial Device converter detected
[ 7.524365] ftdi_sio 1-1.4.4.1:1.0: FTDI USB Serial Device converter detected
[ 7.704380] ftdi_sio 1-1.4.3.2:1.0: FTDI USB Serial Device converter detected
[ 9.805541] ftdi_sio 1-1.4.3.3:1.0: FTDI USB Serial Device converter detected
pi@raspberrypi:~ $ dmesg | grep -i ftd
[ 4.546057] usb 1-1.4.1: Manufacturer: FTDI
[ 4.796087] usb 1-1.4.2: Manufacturer: FTDI
[ 6.680957] usbcore: registered new interface driver ftdi_sio
[ 6.681066] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 6.681412] ftdi_sio 1-1.4.1:1.0: FTDI USB Serial Device converter detected
[ 6.682431] usb 1-1.4.1: FTDI USB Serial Device converter now attached to ttyUSB0
[ 6.682532] ftdi_sio 1-1.4.2:1.0: FTDI USB Serial Device converter detected
[ 6.683547] usb 1-1.4.2: FTDI USB Serial Device converter now attached to ttyUSB1
[ 7.516098] usb 1-1.4.4.1: Manufacturer: FTDI
[ 7.524365] ftdi_sio 1-1.4.4.1:1.0: FTDI USB Serial Device converter detected
[ 7.525374] usb 1-1.4.4.1: FTDI USB Serial Device converter now attached to ttyUSB2
[ 7.696122] usb 1-1.4.3.2: Manufacturer: FTDI
[ 7.704380] ftdi_sio 1-1.4.3.2:1.0: FTDI USB Serial Device converter detected
[ 7.705396] usb 1-1.4.3.2: FTDI USB Serial Device converter now attached to ttyUSB3
[ 9.797274] usb 1-1.4.3.3: Manufacturer: FTDI
[ 9.805541] ftdi_sio 1-1.4.3.3:1.0: FTDI USB Serial Device converter detected
[ 9.806548] usb 1-1.4.3.3: FTDI USB Serial Device converter now attached to ttyUSB4
pi@raspberrypi:~ $ lsusb
Bus 001 Device 013: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 008: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub
Bus 001 Device 019: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 014: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 007: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub
Bus 001 Device 006: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 005: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@raspberrypi:~ $

Can anyone give me a lead on how to proceed next?



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Walter Coria's profile photoJoe C. Hecht's profile photo
9 comments
 
+Steve Bird - I'll check on the unknown devices.
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Sven Emmert

Discussion  - 
 
The postman delivered. Looking forward to this. 
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Chineme Daniel's profile photoMarkus Illenseer's profile photoPat Hopkins's profile photo
13 comments
 
Including handkerchiefs? Very well 😥😄
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kentaro ueno

Discussion  - 
 
Hello
Is GPIO pin placement is the same question is RaspberryPi2 Model B and RaspberryPi Zero?
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kentaro ueno's profile photoAlex Eames's profile photo
3 comments
 
Original B and A had 26 pins. From B+ onwards, all have 40 pins and the same GPIO pinouts...
B+, A+, Pi2B, Pi Zero, Pi3B are all the same wrt GPIO header.
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Roni Segoly

Discussion  - 
 
I need to connect my Pi via WIFI (usb stick)
If I insert it to USB and log into graphic interface I am able to use the configuration tool, find my network and connect
I see the right configuration in
/etc/wpa_supplicant/wpa_supplicant.conf
but when I reboot it will not connect automatically again
Any clue?
I added auto wlan0 to /etc/network/interfaces


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Roni Segoly's profile photo
9 comments
 
if I run manually sudo ifdown wlan0 and sudo ifup wlan0 I get IP and all work well
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chika okorie

Discussion  - 
 
hello guys...I want to create a folder and send some picture into it which will be saved on the pi. I will then run a code using the openCV which compares the face after the camera has taken a picture of that face. If the face is different from those on the folder, it should recognize the face, else it shouldn't.
Can someone help me out with that
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Bhavana Srinivas's profile photo
 
Hey, that sounds like a good idea . Afriend built something similar, but stopped with detecting the faces. He didnt compare it. This will help you get started for sure - https://www.pubnub.com/blog/2015-06-30-create-realtime-raspberry-pi-security-camera-w-parse/
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Greg Cote

Projects  - 
 
Our Hybrid Tube Amp has gone live on Kickstarter. Take advantage of our special Early Bird pricing before they're all gone. We are already over 20% funded in the first 12 hours!
Bring that "Sweet Tube Sound" to the Raspberry Pi!
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Robert King's profile photoAnatoly Artamonov's profile photoFyreworks Gindeht's profile photoValerio Tognozzi's profile photo
10 comments
 
don't think it's a case ,it a bottom plate and a top plate .. it does not encase anything ,just a couple of covers ,lol
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Intorobotics

Projects  - 
 
This is a remote controlled robot equipped with a metal detector, a pan&tilt kit camera for live video streaming, GPS, and a compass module to locate his position and detect the direction.
http://www.intorobotics.com/a-remote-controlled-metal-detector-robot-with-raspberry-pi/
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billy secor's profile photoSarah Rosen (Silencieux)'s profile photoFrancesco C.'s profile photoDominik Vögeli's profile photo
8 comments
 
+Leland Green the idea was to build a robot which is not armed. But maybe equipped with a strong electric magnet to let mines detonate which are against heavy vehicles.
But I think the main problem are personal mines under the ground / surface you do not see and which you cannot shoot at. But I am not an expert in this field of weapons. I hope the idea itself to build a cheap robot and the how to guide on my blog will help people to build their own robot with the right tools they need.
Hopefully I will find the time to build the Discoverer 2 this year. I already bought the stronger dc motors and wheels  plus the electric components but I have no time to assemble the second version of the Discoverer in the next five months.
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