These are chat archives for esp8266/Arduino

31st
Aug 2016
beikeland
@beikeland
Aug 31 2016 01:25
Are the esp8266 gpio 5v tollerant, I seem to be reading conflicting stuff on the internet about it?
Having a hard time with a TXB0108 level shifter and arduino reset circutry, would convenient to just skip the level shifting
beikeland
@beikeland
Aug 31 2016 01:46
I do indeed measure a diode between gpio and 3.3v / 5v and no magic smoke wile 8266avrisp'ing a 5v arduino
Krzysztof
@krzychb
Aug 31 2016 03:23
@beikeland see https://espressif.com/sites/default/files/documentation/esp8266_faq_en.pdf, page 22/32, “Are the GPIO pins 5V compatible?”
beikeland
@beikeland
Aug 31 2016 03:27
Hmm, thats even up to date, dammit, it would have been convenient. But thanks for the source!
beikeland
@beikeland
Aug 31 2016 05:32
and using the spi exposes the flash to 5v i/o too, it did not approve, one just packed in after having been briefly connected to the 5v arduino earlier. esp is seemingly okay, but flash dead. Too bad its under that pesky rf shield, I'm not very good at removing those without blowing nearby components away
Clemens Kirchgatterer
@everslick
Aug 31 2016 10:56
espressif CEO twittered recently, that the esp8266's IO inputs are indeed 5V tolerant!
Comino
@cominous_twitter
Aug 31 2016 13:00
Hey Guys, may I repoint to a issue I have with WiFiClient which is appearently a issue in lwip? esp8266/Arduino#2437 . Sending a file with HTTPClient works in 75% of my networks. In one its not working at all, changed the router, changed the backend... - connnection times out after a minute.
Me No Dev
@me-no-dev
Aug 31 2016 13:13
@cominous_twitter just replied :) I hope it explains a bit the problem
Krzysztof
@krzychb
Aug 31 2016 14:07
@everslick could you post the link?
CHAE-PIL LIM
@chaeplin
Aug 31 2016 14:21
Teo Swee Ann i can reply officially here: it is 5V tolerant at the IO. while the supply voltage is at 3.3V.
Like · Reply · 11 · July 30 at 12:41pm
Vyvojar123
@Vyvojar123
Aug 31 2016 14:23
I have maybe a little bit personal question.. Do you work with the esp just for fun or for commercial projects ?
i3creations
@i3creations
Aug 31 2016 14:35
Just for fun, I built 9 humidity & temperature sensors using the esp-01 and they have been running on my home network for over a year now. There is a team I am working with on a commercial project, we’re evaluating different WiFi & BLE modules besides ESP8266 for the solution. If we choose ESP, I’ll let you know.
Comino
@cominous_twitter
Aug 31 2016 14:38
We use ESP in a commercial product and not regret the decision - until now :D
Me No Dev
@me-no-dev
Aug 31 2016 14:50
@cominous_twitter does that mean that you now regret it?
Comino
@cominous_twitter
Aug 31 2016 14:50
no just kidding :D still in love with esp
Me No Dev
@me-no-dev
Aug 31 2016 14:51
btw do you have time to try something about that tcp issue?
Comino
@cominous_twitter
Aug 31 2016 14:51
sure !
Me No Dev
@me-no-dev
Aug 31 2016 14:51
I'll PM you so wqe do not flood here
Comino
@cominous_twitter
Aug 31 2016 14:52
kay
Krzysztof
@krzychb
Aug 31 2016 15:09
@chaeplin thanks a lot :smile:
beikeland
@beikeland
Aug 31 2016 18:17
So will they update the published datasheet and faq to reflect 5v tolerance, and will it be valid for all devices or certain revisions? One of my Digistump oaks died shortly after being used as esp8266avrisp against a 5v arduino, ofc it can be unrelated, but still