Search found 29 matches

by fdufnews
Mon Aug 12, 2019 3:17 pm
Forum: ESP32 boards
Topic: Clock with encoder
Replies: 5
Views: 144

Re: Clock with encoder

Providing you are using the library proposed by jimmo you need to declare a rotaryIRQ() object. This object handle all the interaction with the encoder you just have to read the value method. You define the min and max value. When you turn the knob the value is increased/decreased. You should look a...
by fdufnews
Mon May 20, 2019 8:09 am
Forum: Drivers for External Components
Topic: vl53l0x max distance
Replies: 1
Views: 199

Re: vl53l0x max distance

Perhaps you can try to adapt Adafruit's CircuitPython driver
by fdufnews
Sat Jan 19, 2019 1:12 pm
Forum: ESP32 boards
Topic: Can't start REPL after success flash
Replies: 1
Views: 209

Re: Can't start REPL after success flash

Obviously, the Arduino UART monitor puts the handshake lines in a state that makes the ESP32 boot in download mode. Arduino UART monitor is not REPL friendly. Arduino UART monitor works in line mode. REPL expects a terminal working in character mode. You'd better use a terminal software like putty o...
by fdufnews
Mon Dec 31, 2018 9:15 am
Forum: ESP32 boards
Topic: Lolin D32 Pro with an ST7735S 1.4 128x128 SPI TFT display
Replies: 3
Views: 979

Re: Lolin D32 Pro with an ST7735S 1.4 128x128 SPI TFT display

ldaponte wrote:
Sun Dec 16, 2018 10:16 pm
baudrate=20000000,
I've tried slower and faster baud rates.
You surely shall slower the baudrate. ST7735 datasheet gives a serial clock not shorter than 66ns (that's 15MHz).
While testing (maybe on breadboard) you'd better slow down to 4MHz just to be sure.
by fdufnews
Fri Dec 14, 2018 7:41 pm
Forum: ESP32 boards
Topic: ESP32 broken filesystem
Replies: 4
Views: 509

Re: ESP32 broken filesystem

Usually, this kind of problem arises when the file is open at the time of the power outage. Sofware solution So you can close the file every time you end writing a file. This will limit the risk of filesystem corruption. But don't suppress them of course. Hardware solution You can put a supercap bet...
by fdufnews
Sat Oct 06, 2018 2:43 pm
Forum: ESP32 boards
Topic: Documentation for ESP32 Port
Replies: 13
Views: 1900

Re: Documentation for ESP32 Port

There is no documentation for ESP32. Usually the ESP8266 one do the trick.
You only have access to documentation for the pyboard because you are in the "latest" release.
Select "1.9.4", you will then be able to choose between different boards.
by fdufnews
Sun Aug 26, 2018 6:55 pm
Forum: ESP32 boards
Topic: Issue with curl
Replies: 2
Views: 500

Re: Issue with curl

Cooool
Thanks a lot
by fdufnews
Sun Aug 26, 2018 9:40 am
Forum: ESP32 boards
Topic: Issue with curl
Replies: 2
Views: 500

Issue with curl

Hi, here is the configuration I use: Lilygo T4 board with ESP32 and SPIRAM MicroPython ESP32_LoBo_v3.2.20 - 2018-06-28 on ESP32 board with ESP32 I use curl to get a json file from wunderground weather forecast using their API import curl, ujson res=curl.get('http://api.wunderground.com/api/my_access...
by fdufnews
Mon Aug 20, 2018 8:40 pm
Forum: ESP32 boards
Topic: DS1307 interfacing with sparkfun's the thing
Replies: 1
Views: 235

Re: DS1307 interfacing with sparkfun's the thing

Hi,
DS1307 is now an integrated circuit "from the past". It works on 5V, if you power it with 3.3V it may not work.
You'd better switch to a DS2321 wich is designed to work from 3.3V supply and is much more accurate.
by fdufnews
Thu Aug 02, 2018 7:33 am
Forum: ESP32 boards
Topic: Step by Step Install
Replies: 4
Views: 1102

Re: Step by Step Install

There are no doc for ESP32 port but instructions for ESP8266 can apply with minor modifications. Providing that Python is already installed on your computer. First step is installing esptool pip install esptool second step is downloading the firmware on MicroPython dowload page Then you follow instr...