Contents
#########
Network:
  •  Twitter
  •  Youtube channel
  •  Facebook
  •  Livejournal (rus)
  •  Ribbonfarm section
  • Spaceway forum
  • Spaceway
  • Writing:
  • Random thoughts
  • Random stories
  • Random games
  • Hardware:
  • Timelapse camera
  • MicroBook reader
  • Multiband camera
  • Tesla coils
  • Soviet calculator
  • 3D printer
  • Quadrotor UAV
  • Box of sunshine
  • Molten salt battery
  • LCD curtains
  • Software:
  • M.A.X. Remake
  • Aprom OS
  • Artwork & photo:
  • Time lapses
  • Concepts - Rhego
  • Concepts - Pella
  • Random Art
  • Lunar eclipse
  • Orbiter addons:
  • Collision SDK
  • Orbiter Shipyard
  • Shukra Station
  • OGLAClient
  • Orulex
  • OSH gallery
  • Shukra gallery
  • Orulex gallery
  • OGLAClient gallery
  • Ship Generator
  • Shipgen manual
  • Orbiter flight gallery
  •      
    Time lapse camera
    Blog
    -> Description and download
    Radio controlled version


     
  • 19.12.2014 - Open-source one year time lapse camera

    Sensor: 640x480 UART camera module.
    Sample video: http://www.youtube.com/watch?v=aYzQma_5TN0.
    RTC (DS1338) included, with CR2032 battery backup.
    Stores images on a microSD card, which also holds the config file.
    Power is supplied from 4.8+ V, over a 3.3V LDO, so 4 alkalines is ideal. I thought of using a switching regulator to increase efficiency, but it just isn't worth it on this scale - at best you can get 20% increase in run time.

    One frame takes:
    3 seconds at 100mA for the camera to stabilize and get a picture.
    7 seconds at 60mA to write the picture down.
    Between frames it stays in deep sleep, consuming 91 uA.
    In other words, it uses 3.5-4 joules per picture.

    On 4 D cells that would be around 50000 frames - at one frame every 10 minutes it will run for a year, at one per minute - for a month.
    The intent is to set it and leave it be, coming back once a year - i like making long time lapse videos.

    You can get the schematics and layout here:
    http://orbides.org/tlc/camera_141219.zip (Eagle)
    http://orbides.org/tlc/camera_sch.png (Image)

    Current firmware and MicroSD bootloader:
    http://orbides.org/tlc/camera_fw_150219.zip

    Appearance of the naked device itself below.
    I'm still thinking on what sort of an enclosure to make for it. 3D printing is not going to cut it here. :)

    camera_img_1935

     


    camera_img_1934

     


    camera_img_1933

     



    Post/read comments

  •  

      
      ADSE 0.9.1   © 2005-2015,