{"id":129,"date":"2023-05-27T14:56:00","date_gmt":"2023-05-27T14:56:00","guid":{"rendered":""},"modified":"2024-01-08T13:27:10","modified_gmt":"2024-01-08T13:27:10","slug":"a-python-time-lapse-program","status":"publish","type":"post","link":"https:\/\/doctor-dark.co.uk\/blog\/a-python-time-lapse-program\/","title":{"rendered":"A Python time-lapse program."},"content":{"rendered":"

A free program…<\/span><\/h2>\n

This is the Python code I cobbled together to make a time-lapse movie of my rather exciting flowering cactus. I’m sure this has been done better by lots of people. It runs on a Raspberry Pi Zero, with not much memory, and no online storage, so it sends the pictures to another Pi Zero, called PiBigStore, which happens to have a 2 Terabyte USB drive. Help yourself to a copy, if you like. Change the server name, and password, obviously. If you know ways this can be improved, feel free to comment.<\/span><\/p>\n

<\/p>\n

# Time lapse pictures
<\/span>import os
<\/span>import time
<\/span>import ftplib
<\/span>from picamera import PiCamera
<\/span>import schedule<\/span><\/div>\n

<\/span>def send_to_PiBigStore():
<\/span>    hour = int(time.strftime(“%H”))
<\/span>    #print(hour)
<\/span>    if hour < 7 or hour > 21:
<\/span>        time.sleep(250)
<\/span>        return
<\/span>    
<\/span>    file_name = “cactus” + time.strftime(“%Y%m%d-%H%M%S”) + “.jpg”
<\/span>    camera.capture(“\/var\/tmp\/” + file_name)
<\/span>    
<\/span>    connected = True
<\/span>    ftp = ftplib.FTP()
<\/span>    try:
<\/span>        ftp.connect(“PiBigStore”)
<\/span>    except ftplib.all_errors:
<\/span>        connected = False
<\/span>        print(“Couldn’t connect to PiBigStore.”)
<\/span>        ftp.quit()
<\/span>        
<\/span>    try:
<\/span>        ftp.login(“pi”,”password goes here”)
<\/span>    except ftplib.all_errors:
<\/span>        connected = False
<\/span>        print (“Failed to login to PiBigStore server.”)
<\/span>        ftp.quit()
<\/span>    
<\/span>    if connected:
<\/span>        ftp.cwd(“\/media\/pidrive\/data\/cactus\/”)
<\/span>        ftp.storbinary(‘STOR ‘+file_name, open(“\/var\/tmp\/”+file_name, “rb”))
<\/span>        print (“Sent to PiBigStore “, file_name)<\/span>
<\/span>    ftp.quit()
<\/span>    os.remove(“\/var\/tmp\/”+file_name)<\/span><\/div>\n

<\/span># Main loop
<\/span>schedule.every(5).minutes.do(send_to_PiBigStore)
<\/span>camera = PiCamera()
<\/span>camera.rotation = 90<\/span><\/div>\n

<\/span>while True:
<\/span>    schedule.run_pending()
<\/span>    time.sleep(10)<\/span><\/div>\n
<\/div>\n\n\n\n\n
<\/a><\/td>\n<\/tr>\n
A foot-tall cactus on a windowsill, with a Raspberry Pi Zero with camera, mounted on a Lego tower.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

A free program… This is the Python code I cobbled together to make a time-lapse movie of my rather exciting flowering cactus. I’m sure this has been done better by lots of people. It runs on a Raspberry Pi Zero, with not much memory, and no online storage, so it sends the pictures to another … Continue reading “A Python time-lapse program.”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":333,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-raspberry-pi"],"jetpack_featured_media_url":"https:\/\/doctor-dark.co.uk\/blog\/wp-content\/uploads\/2023\/05\/20230525_181316.jpg","_links":{"self":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=129"}],"version-history":[{"count":2,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts\/129\/revisions"}],"predecessor-version":[{"id":524,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts\/129\/revisions\/524"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/media\/333"}],"wp:attachment":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}