ESP8266 Community Forum

- Wed Apr 08, 2015 5:29 pm #13919 Hi, thanks for the ESP8266 Arduino support, seems quite exciting. I'm giving it a go but failing

I have an ESP-12 and using the 1.6.1-esp8266-1 release. Following the guide at http://makezine.com/2015/04/01/installing-building-arduino-sketch-5-microcontroller/ i can successfully upload a sample sketch, but then running it just gives:

s$ lÜŸ< „là|„lä#|‡ƒìÛs›bd#Äònoß$gnœãìcpŒŽd{$sd8ûgà‚lcnã|äcÄò'oï $ŒŽl`Ø'o$`g{�’›odl pónà{Œœœãàcgã|Œ$‡{œ#Äònoï d`�ng‡$'{‡“›g“$œlxóoà{Œœœãà$#gã|„ì�#Œóogç Ç$`Ø'o$`g{�’›o‚›Û s›Û'ƒ’“`
Fatal exception (0):
epc1=0x402575c0, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000

Any ideas on what might be going wrong?

- Thu Apr 09, 2015 5:50 am #13962 Answering my own question...

This was a power supply problem. The ESP8266 was being powered by the FTDI adapter which doesn't look like it can provide enough current. Adding an external 3.3v supply gets it working fine.

- Sun May 03, 2015 8:09 am #16344 Hi to all
I have similar problem : compile ok but no output
I already use an external 5V to 3.3V down converter but only messages from serial ports (@74880) after reset button are:

Code: Select all ets Jan  8 2013,rst cause:2, boot mode:(3,7)

or similar
I used a simple serial print loop:

Code: Select allvoid setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}
int i;
void loop() {
  // put your main code here, to run repeatedly:
  Serial.print("time is ");
  Serial.println(millis());
  delay(1000);
}

I already tried to post other details but for now I haven't publish rights.

Thanks
Vincenzo