Search found 88 matches

by mathieu
Sun Aug 28, 2022 9:29 am
Forum: Other Boards
Topic: [teensy41] help getting started
Replies: 8
Views: 27531

Re: [teensy41] help getting started

Not sure if this is related to my problem or not, but if I try mpremote without any arguments, I get this response: $mpremote Connected to MicroPython at /dev/cu.Bluetooth-Incoming-Port So, the default device is not my teensy (/dev/cu.usbmodem14401 or /dev/tty.usbmodem14401). So, if I try to do "mp...
by mathieu
Thu Jul 14, 2022 8:51 am
Forum: General Discussion and Questions
Topic: SSR recommendation
Replies: 2
Views: 1127

Re: SSR recommendation

Thanks, I'll look into it. For now I'm leaning toward something like a Celduc SUL842070 SSR, which should be pretty safe.
by mathieu
Thu Jul 14, 2022 12:31 am
Forum: General Discussion and Questions
Topic: SSR recommendation
Replies: 2
Views: 1127

SSR recommendation

I'm finding it surprisingly difficult to find an optimal SSR to safely switch a low-power 230 VAC appliance (air extractor) using a 3.3V GPIO. Ideally, this would be normally connected (so that when I power down my pyboard the switch is on). The best I could find is this: https://whadda.com/product/...
by mathieu
Sat Jul 02, 2022 8:19 pm
Forum: MicroPython pyboard
Topic: Issues with data-logging on Pyboard
Replies: 5
Views: 21258

Re: Issues with data-logging on Pyboard

For the record, another option for logging sensor output during "short" experiments (up to a few hours) is to connect the board to a computer and have it just print out data as it is read instead of writing to a file. The computer can log this serial stream to a file using cat or something like it. ...
by mathieu
Mon May 09, 2022 10:46 am
Forum: MicroPython pyboard
Topic: Is pyboard v1.1 officially discontinued?
Replies: 4
Views: 2893

Re: Is pyboard v1.1 officially discontinued?

As pythoncoder suggested I contacted micropython.org, and got the following answer: We would love to manufacture more of the PYBv1.1. Unfortunately the STM32F405 is not available for a reasonable price at the moment. The lead times are only estimates and are at 62 weeks. I wish to tell you better ne...
by mathieu
Mon May 02, 2022 4:12 pm
Forum: MicroPython pyboard
Topic: Is pyboard v1.1 officially discontinued?
Replies: 4
Views: 2893

Is pyboard v1.1 officially discontinued?

Pyboards v1.1 seem to have been out of stock at the MicroPython Store for some time now. It would be very useful to know what is planned for this version of the board. Should we expect that no new batches will be made officially? Will unofficial copies soon be the only option to get a pin-compatible...
by mathieu
Wed Apr 13, 2022 8:20 pm
Forum: Pyboard D-series
Topic: Did not read the small print.
Replies: 5
Views: 22703

Re: Did not read the small print.

beetle wrote:
Sat Apr 09, 2022 6:37 pm
I wonder if those original pyboards will be back in stock at some time, I do hope so.
This may be a stupid question, but is there any official word regarding long-term production of the pyboard v1.1?
by mathieu
Sun Apr 10, 2022 7:12 pm
Forum: General Discussion and Questions
Topic: Quantifying idle time when using uasyncio
Replies: 0
Views: 8452

Quantifying idle time when using uasyncio

I'm working on a moderately complex automated system to read/log a dozen temperature and pressure sensors, run a few PIDs, control a stepper motor, and print out status messages. Most of these processes run in a async coroutine. I'd like to minimize undue lags, and to determine whether I need to opt...
by mathieu
Thu Apr 07, 2022 7:06 am
Forum: MicroPython pyboard
Topic: Piping data from pyboard to serial to cat
Replies: 3
Views: 2502

Re: Piping data from pyboard to serial to cat

That did the trick, and I learned something new. Thanks! PSA: a combination of cat+polt makes it extremely easy to monitor various sensors on the fly, be it in the lab or in the field, and offers a lot of flexibility (cf polt docs ). I wonder if this can somehow be done using Pythonista on iOS... Th...
by mathieu
Wed Apr 06, 2022 4:46 pm
Forum: MicroPython pyboard
Topic: Piping data from pyboard to serial to cat
Replies: 3
Views: 2502

Piping data from pyboard to serial to cat

I'm writing strings using pyb.USB_VCP() while my pyboard is connected to a laptop running macOS. I would expect that the following code would read this data and allow me to pipe it to another process, but no luck (cat remains silent). Am I doing something wrong? I'm looking for the very simplest met...