MicroPython Forum

Try: /dev/tty.SLAB_USBtoUART

I have been using BusPirate for several years for I2C sniffing, however the firmware has not been officially updated for many years, although there is a community firmware which I am using. It is temperamental when used with python and the pyBusPirateLite libraries, and I am unable to get consistent...

To save me reinventing the wheel, has anyone done anything with motor / pot servos (not R/C) servos ? The motor drives a gearbox and the output shaft rotates a 10K servo pot. I want to be able to rotate the motor to specific positions using upython. I am guessing that the servo pot will be read as A...

Can anybody else confirm with a live mqtt setup (simple_mqtt or robust_mqtt) on the pyboard D series that mqtt is working for them ??

My gut feeling is that this is somehow related to the socket, as this code is pretty much only reading and writing to the socket and is not getting a reply.

OK, here's some debug info that has been added to mqtt_simple: This is the code from mqtt_simple: self.sock.write(premsg, i + 2) self.sock.write(msg) print('dbug-msg:',hex(len(msg)), hexlify(msg, ":")) self._send_str(self.client_id) if self.lw_topic: self._send_str(self.lw_topic) self._send_str(self...

Hi;

Thanks so much for offering help Jimmo, I have yet to debug myself, this is already mounted to a PCB and boxed.

I need to first do some basic debugging and potentially create some steps to replicate.

Will get beck to you once I have done that.

When I revert back to an older build, the problem goes away and connection is successful every time with no errors:
Using my latest, I get the bytes index out of range errors, and it very very rarely connects:

Hello Jimmo, thanks for helping.

Sorrie, specifying the line number was misleading as I maye have added some comments to the top of the file, this in fact is line 84:
Cheers

PeterC

Just updated micropython on the SF2 and are now noticing mqtt errors (umqtt_simple line 84) during the connection process. This tries to connect 3 times and if it fails will goto sleep and try again later. But I don't recall seeing this "bytes index out of range" error ever before, and I have been u...

I am talking to the device using nodejs serialport, and I need to disable the reply echo of the command entered.

Can this be done ??