It would be great if someone could add an example about how to use the RTC on the Micro SD shield.
Thanks a lot!

Hi,
I try connect relay to Wemos D1 via 5th pin port (opposite the port is written D14/SDA/D4), but nothing happens.

Sample code:

void setup() {
    pinMode(D4, OUTPUT);
}

void loop() {
  delay(1000);
  digitalWrite(D4, HIGH);
  delay(1000);
  digitalWrite(D4, LOW);
}

This behavior apply to all digital ports.

In particular all examples with higher sketch size will crash:
example: "hello-wemos"
tried also to switch to "4M (1M SPIFFS)" to get more flash size.
console output:
`WeMos D1 Mini + Nokia 5110 PCD8544 84x48 Monochrome LCD
Using Adafruit_PCD8544 and Adafruit_GFX libraries

Show Adafruit logo bitmap

Exception (3):
epc1=0x40202f88 epc2=0x00000000 epc3=0x00000000 excvaddr=0x4022f960 depc=0x00000000

ctx: cont
sp: 3ffef9c0 end: 3ffefc00 offset: 01a0

stack>>>
3ffefb60: 00000080 00000008 3ffeead8 00000054
3ffefb70: 0000000b 00000000 00000000 00000000
3ffefb80: 3ffe8500 00000018 3ffe86aa 3ffeebcc
3ffefb90: 40101180 000cfcfe 3ffeeb2c 00000000
3ffefba0: 3ffe9120 3ffeeb2c 3ffeebe0 00000001
3ffefbb0: 3fffdad0 00000000 3ffeead8 40201ca1
3ffefbc0: 00000001 000007d0 000007d0 402010a3
3ffefbd0: 3fffdad0 3ffeead8 3ffefc40 3ffeebcc
3ffefbe0: 3fffdad0 00000000 3ffeebc4 402027fc
3ffefbf0: feefeffe feefeffe 3ffeebe0 40100114 `

EDIT
additional info:
It crashes after the line:
Serial.println("----trace-----");

void loop() {
  display.clearDisplay();
    Serial.println("----trace-----");
  display.drawBitmap(0, 0, WeMos_logo_84x48, 84, 48, BLACK);
  Serial.println("----trace2-----");
  display.display();
  Serial.println("Show WeMos logo 84x48 bitmap");

It looks like all numbers in the logger example are just appended one after the other, creating a mess ratrher than a log.

When i try to compile with pin D4 as the DHT pin, it doesn't compile and complains:

Using library Wire at version 1.0 in folder: /Users/dyim/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/libraries/Wire
Using library Adafruit_LiquidCrystal at version 1.0.0 in folder: /Users/dyim/Documents/Arduino/libraries/Adafruit_LiquidCrystal
Using library DHT_sensor_library at version 1.2.3 in folder: /Users/dyim/Documents/Arduino/libraries/DHT_sensor_library
exit status 1
'D4' was not declared in this scope

I just received my D1 R2 and 2 D1 minis, and I tried to compile the 'blink' sketch, on the D1 R2,
and got this:

Board d1_mini (platform esp8266, package esp8266) is unknown
Error compiling.

I added the 'stable' esp8266 to the IDE preferences and then installed the latest version, with Board Manager.

https://github.com/myk3y/AutoClock

Uses D1 Mini and Oled shield.

This sketch is the basic "blink" example from this repository with a longer time LOW so as to see the difference between LOW and HIGH. LED is on for 4 sec, off for 1 sec. Other tests confirm that LOW=On and HIGH=Off. Is this normal or have I done something wrong during the very complex setup process? Does this mean that my other pins are reversed?

/*

• WEMOS sample sketch modified with my long time off to check
• Blink
• Turns on the onboard LED on for one second, then off for FOUR seconds, repeatedly.
• This uses delay() to pause between LED toggles.
  */

void setup() {
pinMode(BUILTIN_LED, OUTPUT); // initialize onboard LED as output
}

void loop() {
digitalWrite(BUILTIN_LED, HIGH); // turn on LED with voltage HIGH
delay(1000); // wait one second
digitalWrite(BUILTIN_LED, LOW); // turn off LED with voltage LOW
delay(4000); // wait FOUR seconds
}

El tema a debatir es si puede hacer/crear una casa domótica con arduino + shield ethernet w5100 + sd como Maestro servidor web y conectar varios esp8266 con funciones diferentes y específicas como esclavos.

Para ver o controlar la vivienda, solo tendriamos que acceder a la página del servidor web w5100, y segun sean los servicios a realizar ejecutaria la orden para interactuar con el ESP8266 que se desea con la función específica.
Gracias

I know I can use 5V from the USB, but can I use a 3.3V LiPo battery and do I plug this into the 3.3V/GND?

I am looking for examples for the 8x8 RBG Shield. The link in the wiki https://github.com/wemos/D1_mini_Examples/tree/master/examples/04.Shields/8X8_RGB_Shield/ yields a 404 error. I cannot tell if the link is just broken or if there is not an example availabe. Thanks much.

in arduino I downloaded http://arduino.esp8266.com/versions/2.3.0/package_esp8266com_index.json
I can not figure out what is the right card to select .
thanks

Hi,

I connected SD Shield to a Wemos Pro and uploaded the DataLogger code from Wemos web page.

But I always get the error message "Card failed, or not present"

I m using a 32GB 90MB/s micro SD card from Toshiba

Is there someone to help me resolving this issue ?

Thank you

Y tried every single code that I find and tested with other Wemos D1 R1 that I have and I keep getting this white screen.

I've tried with pubsub library and adafruit and the error is always

192.168.0.59
Connecting to MQTT...
Exception (9):
epc1=0x4020416b epc2=0x00000000 epc3=0x00000000 excvaddr=0x0000000b depc=0x00000000

ctx: cont
sp: 3fff1ea0 end: 3fff20b0 offset: 01a0

stack>>>
3fff2040: 3fffdad0 3fff0dac 3fff0fcc 4020699d
3fff2050: 3ffe8fc0 3fff0e9c 00000000 3fffdad0
3fff2060: 402207c3 3fff0dac 3fff0fcc 402069b0
3fff2070: 3fff2acc 40202ae0 3fff0fcc 402026d2
3fff2080: 3fffdad0 00000000 3fff0e9c 40202751
3fff2090: 3fffdad0 00000000 3fff1080 402074b8
3fff20a0: feefeffe feefeffe 3fff1090 40100718
<<<stack<<<

LoadStoreAlignmentCause: Load or store to an unaligned address
Decoding 9 results
0x4020416b: Adafruit_MQTT::connect() at Adafruit_MQTT.cpp line 768

Why?

Hello there

I would like to report that the tutorial for using the D1 mini is lacking information:
url: https://wiki.wemos.cc/tutorials:get_started:get_started_in_arduino

and the video is not working

Thank you

Can't get it to work so before trying out a million more pin combinations, is it compatible at all?

Thanks!

Hi

Ethernet chips and Wemos*mini are working.

I'm wondering how interesting for you it would be to make a new Ethernet shield?

I've tried to use the sketch to display a image on the 2.4 TFT touchscreen, but every time I try to use the demo sketch I get an error.

ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16 
tail 8
chksum 0x2d
csum 0x2d
vbc204a9b
~ld
ILI9341 Test!

The touchscreen demo where you can show the touch values from the serial monitor is working fine. Also if i try to use only the ILI9341 driver to display an image it isn't loading.

Anyone else having these errors?
I can't seem to find a solution on the internet.

I have a D1 mini Pro that I purchased a few months ago, but the board recently stopped working.

When I plug in the board or press reset, the LED blinks to indicate the board is on, but nothing happens with the sketch. I have tried with the LOLIN and Arduino example sketches and not just my custom sketch.

If I upload a sketch, the upload works without error from the IDE (I am using the Arduino IDE) and the LED on the board blinks like normal during upload. However, after that nothing happens with the sketch.

Once or twice I have been able to get some response from the board by leaving it off for a few days and then uploading the "Blink" example sketch with the IDE option "Erase: All Flash Contents". The onboard LED will then blink according to the blink sketch pattern during the initial run. However as soon as I reset or power off the board, it stops working again.

Anyone have any idea what the problem is? Is there a way to reset something to make this board functional again? Thanks!

just try any! of the wifi examples.Every other C3 board from a different manufacturer does work. See your feedback in your Aliexpress store.
Why is this https://www.wemos.cc/en/latest/c3/c3_mini.html#about-wifi needed?
This is against the design recommendations from espressif.
It seems you knew your board design is out of specification.
Stop selling boards which do not fit desing standards from espressif.

Hey, I know it is not the right place but we could not find a way to contact you to resell your products. Hope to hear from you.

Regards

See here: http://forum.wemos.cc/topic/21/problem-board-doesn-t-auto-reset

I have some Wemos D1 mini boards, and they don't auto-reset. I need to press the reset button for the program to be executed after I unplug and replug the usb cable. Only after a fresh upload the code executes. For my friend which also has a few of these boards they autoreset normally, he can unplug and replug and they work. I have same drivers installed then my friend which doesn't have that issue, and we also run same version of Windows and same IDE.

I tried with Arduino IDE 1.6.5r5 and also with the latest 1.6.7 and same issue. Tried also various usb cables and no fix to the problem.
Flashing the board works normally, problem is only running the program after unpluging and repluging usb.

So i don't really know whats the problem??

I can't upload sketches using the USB, but I can do it by using an FTDI programmer while using the USB the Arduino ide show error

error:
Sketch uses 257672 bytes (24%) of program storage space. Maximum is 1044464 bytes.
Global variables use 26572 bytes (32%) of dynamic memory, leaving 55348 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.6
2.6
esptool.py v2.6
Serial port /dev/ttyUSB0
Connecting......................................____Traceback (most recent call last):
File "/home/alpha/.arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/upload.py", line 25, in
esptool.main(fakeargs)
File "/home/alpha/.arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/esptool/esptool.py", line 2653, in main
esp.connect(args.before)
File "/home/alpha/.arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/esptool/esptool.py", line 468, in connect
raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))
esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header
esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

How can I overcome this issue?

Using the Example Lolin>Shields?TFT2.4>Graphics test

Flashes ok, but nothing shows on the screen anymore, just the backlight..

Using esp core 2.7.4 but also tried with latest 3.x version (which gives an SPI overloaded error, probably not related).

I can compile the Blink example fine.

Hi,

I am wanting to have a D1 Mini use as minimal power in deep sleep as possible.
I will be using 3x AA batteries connected into the 5v line.
I have seen the schematic of the D1 Mini uses a RT9013 reg which can handle 2.2 -> 5.5V so works fine.

Is there a way to disable the D1 Mini "extras" to save power when in sleep?
eg: the UART chip

https://wiki.wemos.cc/tutorials:get_started:get_started_in_arduino

Where can i get arduino library for this board

hello alright i have a problem with my esp8266 he and a chinese wemos D1 MINI already installed all the drivers and on ide dis (com100 port busy)
I have to hold the reset for a long time (and really long)
then he goes crazy
----------------------------------------------specifications--- -----------------------------------
ESP8266 ESP-12F DOTING WIFI +
CH340G
HELP ME!!

There is electrical humming sound coming from wemos D1 mini v2 module.
we are using 5v 3A power supply connected to 5v input pin. I suspect its the power input which cause sparking/humming sound. Although there is no heating of device as such.

What is the recommended current supply for D1 mini module. will it harm module in long run?

@wemos

Hey guys from Wemos,
You wrote on the main page about the Forum. http://forum.wemos.cc/

• That forum is not working now for more then 6 month.
• What's going on with you guys?

What is the jumper labeled LDO_EN is supposed to do on this board
https://wiki.wemos.cc/products:d1:d1_mini_pro ?

Hello i am a researcher in Korea.
I want to contact wemos but do not have an email or phone number.
So I sent a message from AliExpress but no reply. Give me an email or phone number where I can be reached

Hi
I am trying to compile the Card Info sketch and I get the following errors:

Arduino: 1.8.10 (Windows 7), Board: "WeMos D1 R1, 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 921600"

card_check:24:1: error: 'Sd2Card' does not name a type

Sd2Card card;

^

card_check:25:1: error: 'SdVolume' does not name a type

SdVolume volume;

^

card_check:26:1: error: 'SdFile' does not name a type

SdFile root;

^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino: In function 'void setup()':

card_check:45:8: error: 'card' was not declared in this scope

if (!card.init(SPI_HALF_SPEED, chipSelect)) {

    ^

card_check:57:11: error: 'card' was not declared in this scope

switch (card.type()) {

       ^

card_check:58:10: error: 'SD_CARD_TYPE_SD1' was not declared in this scope

 case SD_CARD_TYPE_SD1:

      ^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:58:10: note: suggested alternative:

In file included from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdCard/SdSpiCard.h:33:0,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/BlockDriver.h:32,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdFat.h:32,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS\src/SDFS.h:36,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD\src/SD.h:25,

             from C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:21:

C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdCard/SdInfo.h:101:15: note: 'sdfat::SD_CARD_TYPE_SD1'

const uint8_t SD_CARD_TYPE_SD1 = 1;

           ^

card_check:61:10: error: 'SD_CARD_TYPE_SD2' was not declared in this scope

 case SD_CARD_TYPE_SD2:

      ^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:61:10: note: suggested alternative:

In file included from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdCard/SdSpiCard.h:33:0,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/BlockDriver.h:32,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdFat.h:32,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS\src/SDFS.h:36,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD\src/SD.h:25,

             from C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:21:

C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdCard/SdInfo.h:103:15: note: 'sdfat::SD_CARD_TYPE_SD2'

const uint8_t SD_CARD_TYPE_SD2 = 2;

           ^

card_check:64:10: error: 'SD_CARD_TYPE_SDHC' was not declared in this scope

 case SD_CARD_TYPE_SDHC:

      ^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:64:10: note: suggested alternative:

In file included from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdCard/SdSpiCard.h:33:0,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/BlockDriver.h:32,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdFat.h:32,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS\src/SDFS.h:36,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD\src/SD.h:25,

             from C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:21:

C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdCard/SdInfo.h:105:15: note: 'sdfat::SD_CARD_TYPE_SDHC'

const uint8_t SD_CARD_TYPE_SDHC = 3;

           ^

card_check:72:8: error: 'volume' was not declared in this scope

if (!volume.init(card)) {

    ^

card_check:72:20: error: 'card' was not declared in this scope

if (!volume.init(card)) {

                ^

card_check:80:18: error: 'volume' was not declared in this scope

Serial.println(volume.fatType(), DEC);

              ^

card_check:96:3: error: 'root' was not declared in this scope

root.openRoot(volume);

^

card_check:99:11: error: 'LS_R' was not declared in this scope

root.ls(LS_R | LS_DATE | LS_SIZE);

       ^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:99:11: note: suggested alternative:

In file included from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatFile.h:36:0,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/ArduinoFiles.h:33,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatLib.h:27,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdFat.h:33,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS\src/SDFS.h:36,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD\src/SD.h:25,

             from C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:21:

C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatApiConstants.h:121:15: note: 'sdfat::LS_R'

const uint8_t LS_R = 8;

           ^

card_check:99:18: error: 'LS_DATE' was not declared in this scope

root.ls(LS_R | LS_DATE | LS_SIZE);

              ^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:99:18: note: suggested alternative:

In file included from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatFile.h:36:0,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/ArduinoFiles.h:33,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatLib.h:27,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdFat.h:33,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS\src/SDFS.h:36,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD\src/SD.h:25,

             from C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:21:

C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatApiConstants.h:117:15: note: 'sdfat::LS_DATE'

const uint8_t LS_DATE = 2;

           ^

card_check:99:28: error: 'LS_SIZE' was not declared in this scope

root.ls(LS_R | LS_DATE | LS_SIZE);

                        ^

C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:99:28: note: suggested alternative:

In file included from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatFile.h:36:0,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/ArduinoFiles.h:33,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatLib.h:27,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/SdFat.h:33,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS\src/SDFS.h:36,

             from C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD\src/SD.h:25,

             from C:\Users\George\Documents\Sketch Folder\Card_Check\card_check\card_check.ino:21:

C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat\src/FatLib/FatApiConstants.h:119:15: note: 'sdfat::LS_SIZE'

const uint8_t LS_SIZE = 4;

           ^

Multiple libraries were found for "SPI.h"
Used: C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SPI
Multiple libraries were found for "SD.h"
Used: C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SD
Not used: C:\Program
Not used: C:\Users\George\Documents\Arduino\libraries\SD
Multiple libraries were found for "SDFS.h"
Used: C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\SDFS
Multiple libraries were found for "SdFat.h"
Used: C:\Users\George\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2\libraries\ESP8266SdFat
exit status 1
'Sd2Card' does not name a type

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Hello Lolin,
what's going on on your AliExpress Store?

• All empty

• When i use a link from out the old wiki i can't buy because no longer possible
  https://nl.aliexpress.com/item/32529101036.html

• When i use a link from out the new wiki i can't buy because no longer possible
  https://nl.aliexpress.com/item/32529101036.html

SO, Wemos/Lolin is dead and stopped with selling?
Bad decission so please explain us what's going on, otherwise
we will search now for better clones or i start with a company
which will make d1 mini, pro and better shields with newer types of sensors.

All of your boards with JST-SH I2C connectors are defective, as the polarity is reversed from the I2C-bus standard. Please correct this glaring manufacturing mistake.

Hi,

I have just installed the driver for Wemos D1 R2, but when I connect the board with the laptop, I receive a Kernel Panic in the MAC. It is very rare but it is happen when I connect the board.
https://www.wemos.cc/downloads

How to solve it?

My laptop has OSX Sierra.

Juan Antonio

I request an example on how to print free memory of d1 board.

Hello
I see you use the libary from:
https://github.com/adafruit/Adafruit-BMP085-Library/blob/master/Adafruit_BMP085.h

how i can change the pins to other digital inputs?
Thanks a lot

Need a WiFi example for the D1 mini.

Used this tutorial:
http://wiki.amperka.ru/робототехника:подключение-мотора-через-транзистор

Works with Leonardo and doesn't work with wemos and nodemcu. Could you explain what is wrong with it?

P.S. it seems the official forum is locked to prevent access to it for people with negative feedbacks