Search found 780 matches

by OutoftheBOTS_
Tue Apr 03, 2018 8:24 am
Forum: ESP32 boards
Topic: Trying to design an ESP32 dev board
Replies: 13
Views: 4099

Re: Trying to design an ESP32 dev board

Laboris wiki on RTC https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo/wiki/rtc If your asking to to maintain data or time during powering down VDD. I think most people are syncing the time when it connects to the internet on power up. If you need data saved you can always create a temp file on...
by OutoftheBOTS_
Tue Apr 03, 2018 8:10 am
Forum: ESP32 boards
Topic: Trying to design an ESP32 dev board
Replies: 13
Views: 4099

Re: Trying to design an ESP32 dev board

We know that it works even with the delay but what confused me was the assumption everyone makes When DTR is set LOW and RTS set HIGH, this disconnects RESET from the transistor and it gets pulled HIGH by the external pullup resistor. At the same time, GPIO0 is pulled to LOW by the transistor At the...
by OutoftheBOTS_
Mon Apr 02, 2018 11:30 am
Forum: ESP32 boards
Topic: Trying to design an ESP32 dev board
Replies: 13
Views: 4099

Re: Trying to design an ESP32 dev board

Thanks Roberthh

I have stared at that circuit so many times wondering how the hell GPIO0 is set low before EN goes high but now I understand it doesn't do that, it in fact lets EN go high then quickly sets GPIO low before the ESP32 checks its status.
by OutoftheBOTS_
Mon Apr 02, 2018 10:17 am
Forum: ESP32 boards
Topic: Trying to design an ESP32 dev board
Replies: 13
Views: 4099

Re: Trying to design an ESP32 dev board

Just checking that we are talkign about this ciruit that everyone uses ??
esp32.png
esp32.png (11.78 KiB) Viewed 3078 times
by OutoftheBOTS_
Mon Apr 02, 2018 9:59 am
Forum: ESP32 boards
Topic: Trying to design an ESP32 dev board
Replies: 13
Views: 4099

Re: Trying to design an ESP32 dev board

The only thing that I can think of is that the ESP32 doesn't check the condition of GPIO0 as soon as it starts up but rather waits a very short time then checks this way this circuit could work as this circuit set reset/EN high then after that it sets GOPIO0 low.
by OutoftheBOTS_
Mon Apr 02, 2018 9:48 am
Forum: ESP32 boards
Topic: Trying to design an ESP32 dev board
Replies: 13
Views: 4099

Re: Trying to design an ESP32 dev board

@Roberthh I have asked everywhere how this auto boot circuit works and never get a response. It seems no one is sure how it works and it was just opied from the espressif development kit and people just use it as it seems to work. My understanding is this: When the ESP32 chip starts up it checks the...
by OutoftheBOTS_
Mon Apr 02, 2018 9:30 am
Forum: ESP32 boards
Topic: native and viper decorators on ESP32
Replies: 25
Views: 6663

Re: native and viper decorators on ESP32

Thank you very much pythoncoder for the links :) Very interesting read and very clever by the Micro-Python designers. So am I right in understanding that normal byte-code emitters is just designed to optimize Ram usage due to the constrained environment that Micro-Python usually runs in and Native e...
by OutoftheBOTS_
Mon Apr 02, 2018 5:26 am
Forum: General Discussion and Questions
Topic: A MicroPython logo?
Replies: 8
Views: 1735

Re: A MicroPython logo?

I have googled for images of Micro Python and only get the orange snake sitting on the chip. Does anyone have a link to the official grey 1 as I have never seen it.
by OutoftheBOTS_
Sun Apr 01, 2018 8:59 pm
Forum: General Discussion and Questions
Topic: A MicroPython logo?
Replies: 8
Views: 1735

Re: A MicroPython logo?

I thoigh the orange snake sitting on the chip was the logo see https://en.wikipedia.org/wiki/MicroPython
by OutoftheBOTS_
Sun Apr 01, 2018 10:40 am
Forum: ESP32 boards
Topic: native and viper decorators on ESP32
Replies: 25
Views: 6663

Re: native and viper decorators on ESP32

@RobertHH Thanks for your answer. The docs on native and viper emitters is very short and I am not going to be able to teach myself from them. Is there any blogs/tutorials you can suggest for me to study. I am a fast learner, only started to learn programming with my sons Lego mindstorm about 1.5yrs...