projects:bon_accord_webcam
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
projects:bon_accord_webcam [2020/10/29 15:59] neil |
projects:bon_accord_webcam [2021/05/02 14:50] (current) admin |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== Bon Accord Webcam ====== | ====== Bon Accord Webcam ====== | ||
| - | I set this up over lockdown (in the summer) to see how busy the beer garden was (and whether there was a table available) at a glance on my phone. It could be moved horizontonally and vertically from both the web interface and from a command line interface (much more responsive). It was a USB telescope (I'm about 150 meters from the beer garden) velcro mounted on a USB missile launcher. I controlled it with a PHP script that moved the mount using shell commands to a raspberry pi mounted in the window of one of the bedrooms. | + | I set this up over lockdown (in the summer) to see how busy the beer garden was (and whether there was a table available) at a glance on my phone. I wanted to just use what I had lying around. If I could do this again (and I probably will) I think I'd make something with stepper motors (so I could return it to fixed positions). |
| - | The website was only temporary (I've sinced moved) but with the camera movement interface it looked like this: | + | It could be moved horizontonally and vertically from both the web interface and from a command line interface (much more responsive). It was a USB telescope (I'm about 150 meters from the beer garden) velcro mounted on a USB missile launcher. I controlled it with a PHP script that moved the mount using shell commands to a raspberry pi mounted in the window of one of the bedrooms. |
| + | |||
| + | It was one of these missile launcher USB gadgets \\ | ||
| + | {{:projects:pasted:20201029-160202.png?0x400}} | ||
| + | |||
| + | With a USB telescope mounted to it with velcro scraps \\ | ||
| + | {{:projects:pasted:20201029-160102.png?0x400}} | ||
| + | |||
| + | The website was only temporary (I've sinced moved house) but with the camera movement interface it looked like this: | ||
| {{:projects:pasted:20201029-153406.png}} | {{:projects:pasted:20201029-153406.png}} | ||
| Line 11: | Line 19: | ||
| ===== Technical details ===== | ===== Technical details ===== | ||
| - | [[https://motion-project.github.io/|Motion]] was used to stream the output from the USB telescope to a port on the Rasperry Pi. This was then embedded in an img tag on the front end (refreshed twice a second). The movement buttons were PHP wrappers to a python command line program, [[http://lukecole.name/usb_missile_launcher|USB missile launcher]]. | + | [[https://motion-project.github.io/|Motion]] was used to stream the output from the USB telescope to a port on the Rasperry Pi. This was then embedded in an img tag on the front end (refreshed twice a second). The movement buttons were PHP wrappers to a python command line program, [[https://www.lukecole.name/research_and_projects/personal/usb_missile_launcher/|USB missile launcher]] ([[https://sourceforge.net/projects/usbmissile/|sourceforge link]]) |
| - | This command line program took simple parameters to move the USB missile mount, for example: | + | This command line program took simple parameters to move the USB missile mount, for example to move the launcher right for 30 milliseconds: |
| <code bash> | <code bash> | ||
| ./USBMissileLauncherUtils -R -S 30 | ./USBMissileLauncherUtils -R -S 30 | ||
| </code> | </code> | ||
| - | Would move the missible launcher right for 30 milliseconds. | ||
| - | I wrote a simple command line wrapper to allow me to control the movement from the console: | ||
| + | |||
| + | I wrote a simple command line wrapper to allow me to control the movement from the console: | ||
| <code bash> | <code bash> | ||
| #!/bin/bash | #!/bin/bash | ||
| Line 50: | Line 58: | ||
| This allowed the camera to be moved using the keyboard arrows ([A, [B, [C, [D) and the speed (length of time the motor would be turned on) could be set using the number keys. | This allowed the camera to be moved using the keyboard arrows ([A, [B, [C, [D) and the speed (length of time the motor would be turned on) could be set using the number keys. | ||
| - | The PHP wrapper was pretty simple, it only allowed a fix amount of movement (30 milliseconds): | + | The PHP wrapper was pretty simple, triggered from the buttons in the web interface, it only allowed a fix amount of movement (30 milliseconds): |
| <code php> | <code php> | ||
| Line 73: | Line 81: | ||
| ==== Timelapse ==== | ==== Timelapse ==== | ||
| {{:projects:bon-webcam-timelapse.mp4?500|Testing out a timelapse}} | {{:projects:bon-webcam-timelapse.mp4?500|Testing out a timelapse}} | ||
| + | |||
| + | ==== Installing USBMissileLauncher ===== | ||
| + | <code bash> | ||
| + | wget https://sourceforge.net/projects/usbmissile/files/usbmissile/1.5/USBMissileLauncher-1.5.tgz/download -o USBMissileLauncher-1.5.tgz | ||
| + | tar zxvf USBMissileLauncher-1.5.tgz | ||
| + | cd USBMissileLauncher-1.5 | ||
| + | sudo apt install libusb-dev | ||
| + | make | ||
| + | </code> | ||
projects/bon_accord_webcam.1603987149.txt.gz · Last modified: 2020/10/29 15:59 by neil
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
