# foto-feeder FTP v0.1.2
# with luminance-check to avoid black pics
# Raspberry Pi and the Original V2 & HQ cameras
# 2021 Andreas Bahr
# license: GPL3
from picamera import PiCamera
import numpy as np
from time import sleep, localtime, strftime
import ftplib
# configuration
pixfolder = "/home/pi/DCIM/foto-feeder/"
minLuminance = 8 # 0...99, 0 = no luminance-threshold, max.: 255
ftpDomain = ""
ftpUser = ""
ftpPass = ""
def triggerCondition1():
nowtime = localtime()
# compare minutes from struct_time
if(nowtime[4] == 0 or nowtime[4] == 30):
return True
else:
return False
# https://picamera.readthedocs.io
# chapter 4.3 ... at the end
def captureLuminance():
global camera
y_data = np.empty((240, 320), dtype=np.uint8)
try:
camera.capture(y_data, 'yuv')
except IOError:
pass
return int(np.mean(y_data))
def simpleLogger(text):
global logfilename
timestamp = strftime("%Y%m%d-%H%M%S: ", localtime())
log = open(logfilename, "a")
log.write(timestamp + text + "\n")
log.close()
def singleFTPupload(filename, localFolder, ftpFolder, ftpDomain, ftpUser, ftpPass):
# connect to ftp-host
print("connect FTP host: " + ftpDomain + "...")
with ftplib.FTP(ftpDomain, ftpUser, ftpPass) as ftp:
#print(ftp.getwelcome())
#ftp.dir()
# change/make folder
if(ftpFolder == "" or ftpFolder == "." or ftpFolder == "/"):
pathReady = True
else:
pathReady = False
try:
ftp.cwd(ftpFolder)
print("entered folder: " + ftpFolder)
pathReady = True
except ftplib.all_errors as e:
print("FTP error while entering folder")
if(not pathReady):
try:
ftp.mkd(ftpFolder)
print("created folder: " + ftpFolder)
except ftplib.all_errors as e:
print("FTP error: ", e)
sleep(2)
try:
ftp.cwd(ftpFolder)
pathReady = True
except ftplib.all_errors as e:
print("FTP error while entering folder, again")
# binary upload
if(pathReady):
try:
with open(localFolder + filename, "rb") as fp:
res = ftp.storbinary("STOR " + filename, fp)
print(res)
if not res.startswith("226"):
simpleLogger("ERROR: FTP upload failed")
else:
simpleLogger("FTP upload successful")
except ftplib.all_errors as e:
print("FTP error: ", e)
else:
print("ERROR: FTP upload not possible!")
simpleLogger("ERROR: FTP upload not possible!")
ftp.quit()
print("FTP disconnected")
# logfile
logfilename = strftime("ffeedr-log-%Y%m%d.txt", localtime())
print("foto-feeder FTP 2021 Andreas Bahr")
print("picture-folder: " + pixfolder)
simpleLogger("--------------------")
simpleLogger("foto-feeder FTP start")
simpleLogger("picture-folder: " + pixfolder)
# camera setup
simpleLogger("camera setup")
camera = PiCamera()
#camera.resolution = (4056, 3040) # HQ max. resolution, needs 256MB gpu-ram
#camera.resolution = (3280, 2464) # V2 max. resolution, needs 256MB gpu-ram
#camera.resolution = (2028, 1520) # matches HQ-sensor-mode 2
#camera.resolution = (1640, 1232)
#camera.resolution = (1920, 1080)
#camera.resolution = (1280, 960)
camera.resolution = (1024, 768)
#camera.resolution = (640, 480)
#camera.rotation = 180 # 0/90/180/270
print("capture device:", camera.revision)
print("----------------------------------------------------------")
simpleLogger("--------------------")
# main loop
simpleLogger("start preview")
camera.start_preview(alpha=128,resolution=(640,480))
sleep(3)
while True:
if(triggerCondition1()):
lumival = captureLuminance()
print("luminance:", lumival)
simpleLogger("luminance: " + str(lumival))
if(minLuminance == 0 or lumival >= minLuminance):
pixname = strftime("%H-%M-%S.jpg", localtime())
camera.capture(pixfolder + pixname)
print("new picture:", pixname)
simpleLogger("captured " + pixname)
dailyFolder = strftime("%Y-%m-%d", localtime())
singleFTPupload(pixname, pixfolder, dailyFolder, ftpDomain, ftpUser, ftpPass)
else:
print("dark-mode: no picture captured")
simpleLogger("dark-mode: no picture captured")
print("----------------------------------------------------------")
sleep(60)
camera.stop_preview()
camera.close()
