MicroPython Forum (Archive)

Yes. f.readlines() would read all lines in the file and put the into a list. so you could do it like: f = open('/sd/data/data5.csv') content = f.readlines() f.close() for data in content: u2.write(data.rstrip("\n")) or even simpler: f = open('/sd/data/data5.csv') for data in f: u2.write(data.rstrip...

alright, solved it by implementing a few lines:

lines = f.readlines()
line = lines[iline]
u2.write(line)
if iline < len(lines):
iline = iline + 1
else:
iline = 0

Again, you overwrite the file handle f with a result of readline, which then gets a str type, which indede has no attribute close. Change your code to: if SDtoFTP == 1: f = open('/sd/data/data5.csv') data = f.readline() f.close() u2.write(data) SDtoFTP = 0 thanks for the help, sir. You saved me lot...

I would not reassign the file handle, and writte instead if SDtoFTP == 1: f = open('/sd/data/data1', 'r') data = f.readlines() But it is hard to tell what happens unless we see the full picture. And please tell also, which board and micropython build you are using. sorry for the very late reply, i'...

if SDtoFTP == 1: f = open('/sd/data/data1', 'r') f = f.readline() This looks strange, since you overwrite f, which is the file handle, with the content of the first line. It might work once, for the first line. If you use f.readlines(), then the full file is read at once. I did what you suggested a...

You can use uos.mkdir(dir) to create a directory, like uos.mkdir("storage"), and use uos.rename() to move files, like: uos.rename("/SD/data0", "/SD/storage/data0"). Thanks! Another question, how do you send those text files to an FTP server instead of sending rawData over? if SDtoFTP == 1: f = open...

Hi all, I'm having troubles with my micropython board where I have several files(data0, data1, data2 etc...) on my /SD card directory where I want to move them to another directory, let's say: /SD/storage. And as new data are being logged to my micropython which is equipped with sensors at the same ...

No, that does not look like noise. It loks more like you loos some data to be logged while your code writes to SD. Like: 10568,000410,0.00,0.01,-0.99,0.00,10569,000411,0.00,0.01,-1.00,0.00,0.09,, , 4.07, 4.18 10570,000411,0.00,0.01,-0.99,0.00,0.39,, , 3.99, 4.17 could be: 10568,000410,0.00,0.01,-0....

Also another question I have regarding is the storing of data, for example when my data stores, i have these values as shown below: 10477,000411,0.00,0.00,-0.99,0.00,0.15,, , 3.97, 4.23 10478,000409,0.00,0.01,-1.00,0.00,0.30,, , 4.12, 4.26 10479,000410,0.00,0.01,-0.99,0.00,0.13,, , 4.04, 4.07 10480,...

Hello there amigos! I am new to micropython and i'm hoping to get some enlightenment here regarding sd card support. I'm currently working on a datalogger and while i've figured out how to store the incoming data to my sd card mounted on my board, i'm trying to figure out a way where i can call upon...