Search found 94 matches

by EasyRider
Wed Jul 13, 2016 2:17 am
Forum: ESP8266 boards
Topic: Using the tx/rx pins not for UART
Replies: 42
Views: 25320

Re: Using the tx/rx pins not for UART

Thanks Deshipu, Hardware mod is a temporary band-aid fix. Uart is a prime communication interface for many applications requiring reliable functionality. I don't know what complexities are involved in finalizing Uart functionality in firmware and hopefully to include an option to turn uart Repl off ...
by EasyRider
Tue Jul 12, 2016 2:15 pm
Forum: ESP8266 boards
Topic: Using the tx/rx pins not for UART
Replies: 42
Views: 25320

Re: Using the tx/rx pins not for UART

BUMP.
I am also interested in disabling the REPL over UART
Need to free UART for other application.
Any development on this?
Regards
by EasyRider
Tue Jul 12, 2016 8:32 am
Forum: Drivers for External Components
Topic: Power supply control
Replies: 15
Views: 10799

Re: Power supply control

Some of those relay modules use PNP transistors that need switching down from supply voltage, in which case GPIO high state (relay OFF) must be at supply voltage (5v).

NPN should be OK.
by EasyRider
Tue Jul 12, 2016 6:22 am
Forum: General Discussion and Questions
Topic: Re-import module?
Replies: 35
Views: 21237

Re: Re-import module?

Thanks Dave,

pyboard 1.1 , firmware 1.8.2

Deleted some other code that was running in main.py at startup.
Hard Reset.
Good now .
Will investigate why it upset the importing of modules :?

Regards
John
by EasyRider
Tue Jul 12, 2016 2:29 am
Forum: General Discussion and Questions
Topic: Re-import module?
Replies: 35
Views: 21237

Re: Re-import module?

Newbie question. AttributeError: 'module' object has no attribute On pyboard. From Repl trying to import and execute a very simple function. Very simple file A.py , saved in main root directory. def f(): print("test") import A, works OK. from A import f, does not work ImportError: cannot import name...
by EasyRider
Sun Jul 03, 2016 1:32 pm
Forum: ESP8266 boards
Topic: Can anyone tell how to put .py file into the 8266?
Replies: 13
Views: 9872

Re: Can anyone tell how to put .py file into the 8266?

Confirming that Webrepl file transfer works as per pfalcon link earlier.
This is now very easy.

Thank you all.
by EasyRider
Fri Jul 01, 2016 9:09 am
Forum: ESP8266 boards
Topic: Can anyone tell how to put .py file into the 8266?
Replies: 13
Views: 9872

Re: Can anyone tell how to put .py file into the 8266?

I still can't see clear instructions (for newbies) on how to upload files to ESP8266. Brief link in FAQ points to documentation that states. so give it a try using webrepl_cli.py from the repository above :? For a newbie that is not familiar with a Linux OS command line and probably does not even us...
by EasyRider
Mon Jun 27, 2016 7:24 am
Forum: ESP8266 boards
Topic: ESP8266 is great (with ideas for improvement)
Replies: 8
Views: 4752

Re: ESP8266 is great (with ideas for improvement)

In the meantime this configurable software UART works in the Arduino environment.

https://github.com/Ariel-International/ ... areserial2
by EasyRider
Sun Jun 26, 2016 4:01 am
Forum: ESP8266 boards
Topic: ESP8266 is great (with ideas for improvement)
Replies: 8
Views: 4752

Re: ESP8266 is great (with ideas for improvement)

Since ESP has only 1 full/bidirectional hardware UART (Second only supports Tx, Rx(Gpio8) is tied to external Flash) which severely limits direct UART interfacing.

Are there any plans to expand number of Uarts in Micropython through bit bang firmware implementation?

Regards
John
by EasyRider
Mon Jun 13, 2016 4:34 am
Forum: ESP8266 boards
Topic: Direct communication between ESP8266 nodes
Replies: 9
Views: 7510

Re: Direct communication between ESP8266 nodes

ESP8266 Mesh Users Guide . I'm sure Micropython crew know and have a much better idea about this. http://www.signal.com.tr/pdf/cat/30a-esp8266_mesh_user_guide_en_v1.2.pdf Implementation of Mesh network similar to Fig 1.4 would be nice. Once again without being disrespectful, as a backer of the kicks...