Many years before, I did a project using rs-485 chips (sn75176). It's dirty cheap and helps me programming my Arduino (Mega 2560) from a distence about 15m-20m away. If the I²C in your project not rocks, try this one.
Cheers
Gfast2
Search found 182 matches
- Mon Jan 15, 2018 9:39 am
- Forum: General Discussion
- Topic: ESP32 I²C 5V tolerance
- Replies: 9
- Views: 27283
- Sun Jan 14, 2018 7:50 pm
- Forum: General Discussion
- Topic: ESP32 I²C 5V tolerance
- Replies: 9
- Views: 27283
Re: ESP32 I²C 5V tolerance
According to ATmega328p Datasheet, you can even run you Atmel MCU as low as @1.8V.
If you do Arduino. As far as I can remember, there is also some Arduino Micro Pro running @ 3.3V. Perhaps you wanna check them out.
Cheers
Gfast2
If you do Arduino. As far as I can remember, there is also some Arduino Micro Pro running @ 3.3V. Perhaps you wanna check them out.
Cheers
Gfast2
- Wed Jan 10, 2018 12:03 pm
- Forum: General Discussion
- Topic: redirect app trace into sd card
- Replies: 10
- Views: 15736
Re: redirect app trace into sd card
Just don't know how to make a pull request for your Gist. i don't think there's a way to do pull requests in gist, but you can "fork" any gist and do modifications in the fork, then post the link to your forked version for others to see. Regarding stack size selection, indeed it is a not an easy pr...
- Tue Jan 09, 2018 5:05 pm
- Forum: General Discussion
- Topic: redirect app trace into sd card
- Replies: 10
- Views: 15736
Re: redirect app trace into sd card
Hallo Folks, Slowly I start to understanding, why people say C is not a very safe language. I did implementate this snippet as I describt right above. And it seems like one of my task didn't have enough Stack (Are these Logs saved in the stack of the task which created them?), have crash down the wh...
- Tue Jan 09, 2018 11:24 am
- Forum: General Discussion
- Topic: redirect app trace into sd card
- Replies: 10
- Views: 15736
Re: redirect app trace into sd card
Here you go: https://gist.github.com/igrr/82055d824cbbc521932f32217e0710b9 . This is a slightly modified sd_card example, it shows how to redirect logging messages (which come from ESP_LOG) and, optionally, stdout (which is used by 'printf') to a file on SD card. Hey ESP_Igrr, Just don't know how t...
- Tue Jan 09, 2018 10:46 am
- Forum: General Discussion
- Topic: redirect app trace into sd card
- Replies: 10
- Views: 15736
Re: redirect app trace into sd card
Here you go: https://gist.github.com/igrr/82055d824cbbc521932f32217e0710b9 . This is a slightly modified sd_card example, it shows how to redirect logging messages (which come from ESP_LOG) and, optionally, stdout (which is used by 'printf') to a file on SD card. Hello ESP_igrr, OH MY GOD!!! What a...
- Tue Jan 09, 2018 8:45 am
- Forum: General Discussion
- Topic: Geek Question: How to let "ctags" indexing header files in ESP-IDF
- Replies: 0
- Views: 2782
Geek Question: How to let "ctags" indexing header files in ESP-IDF
Hi ESP-IDF, Because of ESP-IDF, I did think about changing my IDE/Text Editor from Eclipse to Vim. Vim is really Powerfull if we can go over the "Learning Wall" vim-learn-curve.jpg So my question for today is: How to let ctags helps vim indexing header files & Function definitions from ESP-IDF and ~...
- Mon Jan 08, 2018 5:39 pm
- Forum: General Discussion
- Topic: redirect app trace into sd card
- Replies: 10
- Views: 15736
Re: redirect app trace into sd card
Hi iggr,
sorry, I can't! I think I've unstandstand, what I wanna achive is no more redirect app trace into sd card, but more about how to redirect stdout to a file.
Some ideas for me?
Cheers
Su Gao
sorry, I can't! I think I've unstandstand, what I wanna achive is no more redirect app trace into sd card, but more about how to redirect stdout to a file.
Some ideas for me?
Cheers
Su Gao
- Sun Jan 07, 2018 8:36 am
- Forum: General Discussion
- Topic: Wemos Pro won't boot
- Replies: 7
- Views: 9453
Re: Wemos Pro won't boot
I'm using ubuntu in a windows 10 hosted vritualbox. And each time after I start the virtualbox, I've to dealing with these issues either.
My solution is replug. It fixs my problem.
My solution is replug. It fixs my problem.
- Sat Jan 06, 2018 6:54 pm
- Forum: General Discussion
- Topic: redirect app trace into sd card
- Replies: 10
- Views: 15736
Re: redirect app trace into sd card
Hi igrr, Thanks for the Tip. It seems like I'd try some idea just like your answers, before posting questions. To tell the truth, I always struggling if I should "RTFM" before I start to try something out. It's pretty a experience thing. Thanks again. If my implementation as you said works well, I w...