ESP8266 Community Forum

- Wed Jul 05, 2017 6:58 am #67935 May I make an UP to my post ?

Any chance to get a solution for you guies?

- Wed Jul 05, 2017 7:11 am #67936 You must be doing something wrong, since the code I showed in my previous answer works flawlessly on my Wemos D1 Mini and should work on all ESP-12 derivatives, since the LED is connected to the same pin on all these boards.

I tried with different version of Arduino and different machine (Intel Linux and Raspberry Pi).
I also tried different board from the IDE (WeMos D1 R2 & mini, WeMos D1(Retired), Generic ESP8266 Module)

Are you even able to upload any sketch to your board, since I'm under the impression you don't even got that going.

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.

- Wed Jul 05, 2017 8:26 am #67940 I can give you some of the uploading returned message :

Code: Select allUploading 226288 bytes from /tmp/arduino_build_86056/sketch_jun27a.ino.bin to flash at 0x00000000
   erasing flash
   size: 0373f0 address: 000000
   first_sector_index: 0
   total_sector_count: 56
   head_sector_count: 16
   adjusted_sector_count: 40
   erase_size: 028000
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   setting timeout 15000
   setting timeout 100
   espcomm_send_command: receiving 2 bytes of data
   writing flash
................................................................................ [ 36% ]
................................................................................ [ 72% ]
.............................................................                    [ 100% ]
starting app without reboot
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   espcomm_send_command: receiving 2 bytes of data
closing bootloader

I must say there is a lot more messages sent and it takes quite a while to my feeling to compile and upload, but I've just did it on a Raspberry pi.

And still no blink !
I'm very stuck with this at the moment. I really need you assistance.

- Wed Jul 05, 2017 5:08 pm #67951 What IDE gives you that result (or is it under Linux)?
My output never looks anything like that.

This is what I did just now (Arduino IDE v.1.8.2 under Windows x64):

• I've re-opened the project
• Changed the pin-number to the predefined constant BUILTIN_LED (to follow the correct and official conventions)
  
  Code: Select all#define led_pin BUILTIN_LED
#define led_interval 500

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

void loop() {
  digitalWrite(led_pin, HIGH);
  delay(led_interval);
  digitalWrite(led_pin, LOW);
  delay(led_interval);
}
• Checked that I selected the correct WeMos board ("Tools" -> "Board" -> "WeMos D1 R2 & mini")
• Compiled and uploaded the code, the log-windows shows this:
  
  Code: Select allArchiving built core (caching) in: C:\Users\QUICKF~1\AppData\Local\Temp\arduino_cache_923956\core\core_esp8266com_Arduino_d1_CpuFrequency_80,UploadSpeed_921600,FlashSize_4M3M_21655eb80f1d4fdd8e4dada24d8451b9.a
Sketch uses 238905 bytes (22%) of program storage space. Maximum is 1044464 bytes.
Global variables use 33028 bytes (40%) of dynamic memory, leaving 48892 bytes for local variables. Maximum is 81920 bytes.
Uploading 243056 bytes from C:\Users\QUICKF~1\AppData\Local\Temp\arduino_build_762096/LEDBlinker.ino.bin to flash at 0x00000000
................................................................................ [ 33% ]
................................................................................ [ 67% ]
..............................................................................   [ 100% ]
• And the blue LED on my board was blinking happily right after

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.