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MrYsLab / pymata4

A High Performance Python Client For Arduino Firmata
GNU Affero General Public License v3.0
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i can't use the analog_read in samd21 #20

Closed wodenageshen closed 4 years ago

wodenageshen commented 4 years ago

hello; thanks for your software ,it's great. i download the firmataExpress.ino to arduino uno , it could work well (digital and analog_read) , but wen i use samd21(seeeduino zero) , the analog_read function could not work well , the return's is always (0,0).

MrYsLab commented 4 years ago

I don't believe that StandardFirmata supports this board. To prove this, could you please do the following:

  1. Install StandardFirmata on your seeeduino zero.
  2. Modify this line of the analog input example from 
    board = pymata4.Pymata4()

    to

    board = pymata4.Pymata4(baud_rate=57600)

    Then run the script to see if it works. If it does not then we can create an issue against StandardFirmata.

Please let me know the results.

wodenageshen commented 4 years ago

Hi:

     Here is my test!

thanks

发件人: noreply@github.com [mailto:noreply@github.com] 代表 Alan Yorinks 发送时间: 2020年6月29日 20:18 收件人: MrYsLab/pymata4 抄送: wodenageshen; Author 主题: Re: [MrYsLab/pymata4] i can't use the analog_read in samd21 (#20)

I don't believe that StandardFirmata supports this board. To prove this, could you please do the following:

  1. Install StandardFirmata on your seeeduino zero.
  2. Modify this line of the analog input example https://github.com/MrYsLab/pymata4/blob/aeab6607bfc98f8ad0c36adaa0ce27fa18d66264/examples/analog_input_with_time_stamps.py#L89 from

board = pymata4.Pymata4()

to

board = pymata4.Pymata4(baud_rate=57600)

Then run the script to see if it works. If it does not then we can create an issue against StandardFirmata.

Please let me know the results.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/MrYsLab/pymata4/issues/20#issuecomment-651079918 , or unsubscribe https://github.com/notifications/unsubscribe-auth/ADBG7INPFPJZI7QNRXKBUTTRZCBAVANCNFSM4OLDRTAQ . https://github.com/notifications/beacon/ADBG7ILBC5RRMNJXWRG5T6LRZCBAVA5CNFSM4OLDRTA2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOE3HLB3Q.gif

!/usr/bin/env python3

from pyfirmata import Arduino,util import time import sys

board = Arduino('COM28') # Change to your port it = util.Iterator(board) it.start() board.analog[0].enable_reporting() print ("Read Start") for i in range(10): time.sleep(1) print(board.analog[0].read())

board.analog[0].disable_reporting()

"""

Copyright (c) 2020 Alan Yorinks All rights reserved.

This program is free software; you can redistribute it and/or

modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE

Version 3 as published by the Free Software Foundation; either

or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

General Public License for more details.

You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE

along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

"""

import sys

import time

from pymata4 import pymata4

"""

This file demonstrates analog input using both callbacks and

polling. Time stamps are provided in both "cooked" and raw form

"""

Setup a pin for analog input and monitor its changes

ANALOG_PIN = 2 # arduino pin number

POLL_TIME = 5 # number of seconds between polls

Callback data indices

CB_PIN_MODE = 0

CB_PIN = 1

CB_VALUE = 2

CB_TIME = 3

#

def the_callback(data):

"""

A callback function to report data changes.

:param data: [pin_mode, pin, current_reported_value,  timestamp]

"""

formatted_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(data[CB_TIME]))

print(f'Analog Call Input Callback: pin={data[CB_PIN]}, '

      f'Value={data[CB_VALUE]} Time={formatted_time} '

      f'(Raw Time={data[CB_TIME]})')

def analog_in(my_board, pin):

"""

This function establishes the pin as an

analog input. Any changes on this pin will

be reported through the call back function.

Every 5 seconds the last value and time stamp is polled

and printed.

Also, the differential parameter is being used.

The callback will only be called when there is

difference of 5 or more between the current and

last value reported.

:param my_board: a pymata4 instance

:param pin: Arduino pin number

"""

my_board.set_pin_mode_analog_input(pin, callback=the_callback, differential=5)

# run forever waiting for input changes

try:

    while True:

        time.sleep(POLL_TIME)

        # retrieve both the value and time stamp with each poll

        value, time_stamp = board.analog_read(pin)

        # format the time stamp

        formatted_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time_stamp))

        print(

            f'Reading latest analog input data for pin {pin} = {value} change received on {formatted_time} '

            f'(raw_time: {time_stamp})')

except KeyboardInterrupt:

    my_board.shutdown()

    sys.exit(0)

instantiate pymata4

board = board = pymata4.Pymata4(baud_rate=57600)

analog_in(board, ANALOG_PIN)

MrYsLab commented 4 years ago

If you adjust the script with the pin number you are using, does this script run correctly with StandardFirmata? It was not clear from your post above. Thanks.

wodenageshen commented 4 years ago

It just could use pin 0-5 and all of these pins return 0 . I had test arduino zero and the result is the same as seeeduino zero .

thanks

发件人: noreply@github.com [mailto:noreply@github.com] 代表 Alan Yorinks 发送时间: 2020年6月29日 21:13 收件人: MrYsLab/pymata4 抄送: wodenageshen; Author 主题: Re: [MrYsLab/pymata4] i can't use the analog_read in samd21 (#20)

If you adjust the script with the pin number you are using, does this script run correctly. It was not clear from your post above. Thanks.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/MrYsLab/pymata4/issues/20#issuecomment-651111858 , or unsubscribe https://github.com/notifications/unsubscribe-auth/ADBG7II5AGQHBVZION6TVG3RZCHOZANCNFSM4OLDRTAQ . https://github.com/notifications/beacon/ADBG7IMROEEQL4Z3R7A72Q3RZCHOZA5CNFSM4OLDRTA2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOE3HS3MQ.gif

MrYsLab commented 4 years ago

Have you tried loading standardfirmata onto the zero? Does that work?

wodenageshen commented 4 years ago

If I use arduino zero ,it could not get the firmware id

发件人: noreply@github.com [mailto:noreply@github.com] 代表 Alan Yorinks 发送时间: 2020年6月30日 10:12 收件人: MrYsLab/pymata4 抄送: wodenageshen; Author 主题: Re: [MrYsLab/pymata4] i can't use the analog_read in samd21 (#20)

Have you tried loading standardfirmata onto the zero? Does that work?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/MrYsLab/pymata4/issues/20#issuecomment-651476955 , or unsubscribe https://github.com/notifications/unsubscribe-auth/ADBG7ILXOG5LWTS7Q4355OTRZFCYVANCNFSM4OLDRTAQ . https://github.com/notifications/beacon/ADBG7IJLA6MNBW45UPFW4DLRZFCYVA5CNFSM4OLDRTA2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOE3KL7WY.gif

MrYsLab commented 4 years ago

Please answer my question. Does the zero work with the StandardFirmata sketch installed? Make sure you set the baud_rate as explained above for StandarFirmata.

wodenageshen commented 4 years ago

No ，arduino zero or seeeduino zero no matter installed standardfirmata sketch or firmataexpress sketch both could not work well whitch pymata4. The follow picture is on arduino zero.

发件人: noreply@github.com [mailto:noreply@github.com] 代表 Alan Yorinks 发送时间: 2020年6月30日 11:09 收件人: MrYsLab/pymata4 抄送: wodenageshen; Author 主题: Re: [MrYsLab/pymata4] i can't use the analog_read in samd21 (#20)

Please answer my question. Does the zero work with the StandardFirmata sketch installed? Make sure you set the baud_rate as explained above for StandarFirmata.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/MrYsLab/pymata4/issues/20#issuecomment-651498247 , or unsubscribe https://github.com/notifications/unsubscribe-auth/ADBG7INVLYLZM7TBM47BCXTRZFJODANCNFSM4OLDRTAQ . https://github.com/notifications/beacon/ADBG7II4YTX7MKBDWI5GK6TRZFJODA5CNFSM4OLDRTA2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOE3KRGBY.gif

MrYsLab commented 4 years ago

It appears that StandardFirmata does not support the Zero. Since FirmataExpress is built on StandardFirmata, it also does not support the Zero. This is documented on the Arduino Firmata GitHub pages in this issue.

I am sorry that until Firmata supports the Zero, I too cannot support it. This is not a pymata4 issue, but a Firmata issue.

MrYsLab commented 4 years ago

@wodenageshen I just ordered a Seeed Wio Lite W600 which is supposed to be Arduino zero compatible. I should receive it sometime next week. I will let you know if it works for me or not, or if I see what you reported.

wodenageshen commented 4 years ago

Thank you very much , I am looking forwared to using the new version.

发件人: noreply@github.com [mailto:noreply@github.com] 代表 Alan Yorinks 发送时间: 2020年7月2日 6:18 收件人: MrYsLab/pymata4 抄送: wodenageshen; Mention 主题: Re: [MrYsLab/pymata4] i can't use the analog_read in samd21 (#20)

@wodenageshen https://github.com/wodenageshen I just ordered a Seeed Wio Lite W600 which is supposed to be Arduino zero compatible. I should receive it sometime next week. I will let you know if it works for me or not, or if I see what you reported.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/MrYsLab/pymata4/issues/20#issuecomment-652673595 , or unsubscribe https://github.com/notifications/unsubscribe-auth/ADBG7IMD4P4YAPZM5ALSXHTRZOY2NANCNFSM4OLDRTAQ . https://github.com/notifications/beacon/ADBG7ILCXN6PEHH2HFRBHVLRZOY2NA5CNFSM4OLDRTA2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOE3TQEOY.gif

MrYsLab commented 4 years ago

I have bad news in that I received the Seeed Studio board and for some reason, the board uses a USB-C male connector. I cannot find a cable that will connect with this. iPhone cables use a male USB-C connector and therefore cannot be used - male to male does not work. As a result, I am returning the board. I also cannot find some other reasonably priced samd21 board, so I am sorry, but I cannot pursue this any further.