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by Bagmulgwan
Tue Jan 21, 2020 5:06 pm
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5139
Views: 1449597

Re: RPi Cam Web Interface

The "simple application" would be something like this: A button on a web page. When clicked, it runs raspistill, say, and takes one photo. And then shows the photo on the remote screen. That's all. I can do it now by ssh'ing to the remote RPi, running raspistill once, scp'ing the jpg to my PC and t...
by Bagmulgwan
Tue Jan 21, 2020 7:20 am
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5139
Views: 1449597

Re: RPi Cam Web Interface

RPi Cam Web Interface would work fine for this and is easier to set up than Motion. Note that it doesn't work with USB cameras, however, in case that's what you already have. Thank you, but Motion was, in fact, so easy to set up in maybe half an hour that it really was no problem at all. The proble...
by Bagmulgwan
Mon Jan 20, 2020 4:19 pm
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5139
Views: 1449597

Re: RPi Cam Web Interface

I just got a surveillance camera working with the motion package. It's neat, but continuous surveillance is not really what I want to do with the camera. It's just that everything about this – to my mind, rather complex – project was easy to find and set up, because there are tons of examples on the...
by Bagmulgwan
Mon Jan 20, 2020 10:09 am
Forum: Troubleshooting
Topic: Issues with running the Raspberry Pi Camera V2 on RP4-4GB
Replies: 19
Views: 1256

Re: Issues with running the Raspberry Pi Camera V2 on RP4-4GB

Will need to check the test source code for the camera firmware to confirm. Should be able to do that tomorrow. (This is tomorrow. ) I went to the store where I bought the camera and they gave me a replacement. Well, the new camera works. It is enabled, detected, and the assert() from imx.c does no...
by Bagmulgwan
Sun Jan 19, 2020 10:37 am
Forum: Troubleshooting
Topic: Issues with running the Raspberry Pi Camera V2 on RP4-4GB
Replies: 19
Views: 1256

Re: Issues with running the Raspberry Pi Camera V2 on RP4-4GB

Previously discussed. https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=232533#p1423735 for diagnostics steps to confirm it is a crypto chip failure. OK. There, the key line to look for was assert( 0 ) failed; ../../../../../vcfw/drivers/device/camera/imx219.c::imx219_open line 431 rev 3ca4cf...
by Bagmulgwan
Sun Jan 19, 2020 8:07 am
Forum: Troubleshooting
Topic: Issues with running the Raspberry Pi Camera V2 on RP4-4GB
Replies: 19
Views: 1256

Re: Issues with running the Raspberry Pi Camera V2 on RP4-4GB

Can it be that some "official" and "approved" RPi cameras, in fact, have crypto chips that are not recognized at boot time? If this were true, it would indicate some embarrassingly bad quality control at OKdo Technology, the makers of the "approved" cameras. On the other hand, it would explain the ...
by Bagmulgwan
Sat Jan 18, 2020 9:28 pm
Forum: Troubleshooting
Topic: Issues with running the Raspberry Pi Camera V2 on RP4-4GB
Replies: 19
Views: 1256

Re: Issues with running the Raspberry Pi Camera V2 on RP4-4GB

I kept on digging, and found that something similar has been reported on the Camera forum here; see https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=253330 User rostislavetc connected an un official[ IMX219-160 to an RPi and found it worked (yay!), but only if he replaced it with an official ...
by Bagmulgwan
Sat Jan 18, 2020 6:11 pm
Forum: Troubleshooting
Topic: Issues with running the Raspberry Pi Camera V2 on RP4-4GB
Replies: 19
Views: 1256

Re: Issues with running the Raspberry Pi Camera V2 on RP4-4GB

The pi v2 camera doesn't have a red led. OK; thank you. In the meantime, I found an interesting video on YouTube https://www.youtube.com/watch?v=DsO9OrUe_oE It seems user Ranganath DN has bought 100+ cameras (wow) from element14 with this ENOSPC problem. He has not solved it, but has found that if ...
by Bagmulgwan
Sat Jan 18, 2020 4:19 pm
Forum: Troubleshooting
Topic: Issues with running the Raspberry Pi Camera V2 on RP4-4GB
Replies: 19
Views: 1256

Re: Issues with running the Raspberry Pi Camera V2 on RP4-4GB

I am running out of things to try to solve this. I have done raspi-config , rpi-update , apt update , apt upgrade . It didn't help. vcgencmd says supported=1 detected=1 But raspistill -o p.jpg still results in mmal: mmal_vc_component_enable: failed to enable component: ENOSPC mmal: camera component ...
by Bagmulgwan
Sat Jul 02, 2016 5:11 pm
Forum: Troubleshooting
Topic: mcp3002.c and mcp3004.c
Replies: 10
Views: 2884

Re: mcp3002.c and mcp3004.c

nopnop2002 wrote:I checked DataSheet of mcp3002.
mcp3002 is Dual Channel 10-Bit A/D Converter.
I think the following code is right.
return ((spiData [1] << 8) | spiData [2]) & 0x3FF ;
Not quite. Numbering in C starts from 0 (zero), so the two spiData bytes to use are [0] and [1].
by Bagmulgwan
Fri Jul 01, 2016 10:16 am
Forum: Troubleshooting
Topic: mcp3002.c and mcp3004.c
Replies: 10
Views: 2884

Re: mcp3002.c and mcp3004.c

Which part do you think is wrong? They are different chips documented in different pdfs which for MCP usually indicates they have a different interface. I'm sorry, I don't quite understand what you mean by "which part". The original poster mentioned a problem about MCP3002, and that chip is what I ...
by Bagmulgwan
Fri Jul 01, 2016 8:10 am
Forum: Troubleshooting
Topic: mcp3002.c and mcp3004.c
Replies: 10
Views: 2884

Re: mcp3002.c and mcp3004.c

Hello. There is mcp3002.c and mcp3004.c in the wiringPi library. I found the following codes in mcp3002.c and mcp3004.c. mcp3002.c return ((spiData [0] << 7) | (spiData [1] >> 1)) & 0x3FF ; mcp3004.c return ((spiData [1] << 8) | spiData [2]) & 0x3FF ; Isn't mpc3002.c wrong?? I think it is wrong, ye...
by Bagmulgwan
Sat Jul 11, 2015 5:22 pm
Forum: Automation, sensing and robotics
Topic: LM92 Temperature Sensor
Replies: 0
Views: 504

LM92 Temperature Sensor

I wanted to monitor a certain temperature and cobbled up a circuit with the LM92 sensor (from Texas Instruments). Problem is, it is not accurate. Or is it? I put three (different) analog thermometers close to the chip, and they all show almost precisely 25C, while the LM92 reports 27.6C. On the othe...
by Bagmulgwan
Fri Jul 10, 2015 7:41 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Installing i2c-tools fails (MAKEDEV)
Replies: 2
Views: 1423

Installing i2c-tools fails (MAKEDEV)

I would like to use some I2C peripherals and tried to install the i2c-tools package. However, this fails with Setting up i2c-tools (3.1.1+svn-1) ... /run/udev or .udevdb or .udev presence implies active udev. Aborting MAKEDEV invocation. /boot/config.txt has the lines dtparam=spi=on dtparam=i2c_arm=...
by Bagmulgwan
Sun May 19, 2013 6:59 am
Forum: Python
Topic: Using Bluetooth with Python?
Replies: 1
Views: 1166

Re: Using Bluetooth with Python?

from bluetooth import * works for me. I think what was needed was

Code: Select all

$ sudo apt-get install bluez
by Bagmulgwan
Thu May 16, 2013 1:55 pm
Forum: Python
Topic: Python and Bluetooth
Replies: 0
Views: 1058

Python and Bluetooth

I would like to connect a Nokia phone and my Raspberry Pi via Bluetooth. The phone has PyS60, so I thought Python would be a good language for this. However, I do not seem to be able to have a situation work where the phone initiates the connection as the client and RPi is the server. The connection...
by Bagmulgwan
Sun Apr 14, 2013 11:16 am
Forum: Troubleshooting
Topic: Raspbian Wheezy and nm-applet
Replies: 1
Views: 1645

Re: Raspbian Wheezy and nm-applet

I installed the NetworkManager package that I am more familiar with and was happy to have it work almost immediately. It's just that I have to start nm-applet as root; else it reports not being authorized to do network stuff. This means I have to first kill the nm-applet that was automatically star...
by Bagmulgwan
Sun Apr 14, 2013 8:33 am
Forum: Troubleshooting
Topic: Raspbian Wheezy and nm-applet
Replies: 1
Views: 1645

Raspbian Wheezy and nm-applet

I tried very hard to setup my WLAN stick with the WiFi configurator that seems to be the standard with Wheezy (wpa_supplicant etc.), but failed miserably. So, I installed the NetworkManager package that I am more familiar with and was happy to have it work almost immediately. It's just that I have t...

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