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by deshipu
Mon Feb 27, 2017 1:16 am
Forum: ESP8266 boards
Topic: Flashing firmware with filesystem
Replies: 1
Views: 9

Re: Flashing firmware with filesystem

I think the easiest, even though a bit hacky, way is to simply flash your firmware, upload the files you need, and then dump the whole flash back with esptool.py.
by deshipu
Sun Feb 26, 2017 11:37 am
Forum: Programs, Libraries and Tools
Topic: OpenMV IDE support for all MicroPython Boards
Replies: 1
Views: 49

Re: OpenMV IDE support for all MicroPython Boards

That's great news! I will be able to make it work with the WiFi shield and program my robot more conveniently!
by deshipu
Fri Feb 24, 2017 9:50 pm
Forum: The micro:bit
Topic: SSD1306 library for the micro:bit
Replies: 6
Views: 145

Re: SSD1306 library for the micro:bit

It merged in November last year, I'm not sure if this was released already, but I have an impression that there was a release before Christmas. Unfortunately there are no tags in the repository that would signify at which point a release was made, so it's a little hard to say.
by deshipu
Fri Feb 24, 2017 7:13 pm
Forum: The micro:bit
Topic: SSD1306 library for the micro:bit
Replies: 6
Views: 145

Re: SSD1306 library for the micro:bit

Yes, it was added recently.
by deshipu
Fri Feb 24, 2017 12:17 am
Forum: The micro:bit
Topic: SSD1306 library for the micro:bit
Replies: 6
Views: 145

Re: SSD1306 library for the micro:bit

Nice!

Did you know that you can now use any two pins for I2C? That means you could use that display without the edge connector.
by deshipu
Thu Feb 23, 2017 12:51 pm
Forum: ESP8266 boards
Topic: Reading VCC without external components
Replies: 7
Views: 169

Re: Reading VCC without external components

The ADC(1) reading is in 1/1024s of volt, see the docs you linked to in the first post: https://github.com/esp8266/Arduino/issu ... -113099775
by deshipu
Thu Feb 23, 2017 12:07 pm
Forum: ESP8266 boards
Topic: Reading VCC without external components
Replies: 7
Views: 169

Re: Reading VCC without external components

I think that ADC(0) is the external A0 pin, and its range is 0-1024 (0-1V), and ADC(1) is the internal VCC measurement. Since you can only use one or the other of them, depending on what ADC mode is set, the other one will return 65535.
by deshipu
Wed Feb 22, 2017 12:25 pm
Forum: The MicroPython pyboard
Topic: Read ADC without reinitializing channel
Replies: 7
Views: 180

Re: Read ADC without reinitializing channel

Why would you try that out in C before doing it in Python? The whole point of using a pyboard was to be able to use micropython instead of C, since that is a whole lot easier for me. But you are setting out for hacking a C program now. And it's a huge and complex C program -- the micropython interp...
by deshipu
Wed Feb 22, 2017 9:02 am
Forum: ESP8266 boards
Topic: GPIO16, deep sleep and pin interrupt
Replies: 2
Views: 90

Re: GPIO16, deep sleep and pin interrupt

Unfortunately no, in deep sleep most of the chip is powered down to save energy, only the RTC clock and the reset circuit are active.
You could use an additional small low-power microcontroller, such as an attiny, to handle this.
by deshipu
Wed Feb 22, 2017 8:55 am
Forum: ESP8266 boards
Topic: Newly flashed D1 mini disconnects after a few sec
Replies: 10
Views: 170

Re: Newly flashed D1 mini disconnects after a few sec

I suspect there is a short circuit, faulty part or other problem in the voltage regulator part of the board. It could help to compare with a working D1 Mini, it may be as simple a a solder blob somewhere that needs to be removed, or a wrong resistor.

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