When i boot ESP8266 i'm getting on my arduino MEGA serial monitor.
Fatal exception (0): e2= 0d00l(xp00v0xao1,00e0c pe80c00d0x:2= 0d00l(xp00v0xao1,00e0c pe80c00d0x:2= 0d00l(xp00v0xao1,00e0c e 0xp0= 0e)02,0d00a 0e00c00Fic00= 0p0e 0xp0= 0e)02
If i do a hard reset than it prints
Jan 8 2013,rst cause:4, boot mode:(3,6) wdt reset load 0x40100000, len 28740, room 16 tail 4 chksum 0xcd load 0x3ffe8000, len 2888, room 4 tail 4 0xeotail 0 chks
I used NodeMcu flasher nodemcu_integer_0.9.5_20150318.bin and NodeMCU 0.9.5 build 20150318 powered by Lua 5.1.4. I'm using arduino UART (serial monitor) to talk to ESP8266. BAUD RATE : 115200 FLASH SIZE : 4MB FLASH SPEED : 40MHz SPI : DIO Module is powered with apt power (separate power supply)
Here's my connections:
//////////////////////////////////////////////////////////////////////////////
/////// CONNECTIONS ////////
/////////////////////////////////////////////////////////////////////////////
/*
ESP8266 VCC -> BeagleBone 3.3
ESP8266 GND -> Common GND (Arduino & BeagleBone)
ESP8266 CH_PD -> 3K resistor -> VCC
ESP8266 RST -> VCC or pin 13(arduino)
GPIO CAB BE LEFT OPEN OR TIED HIGH
ESP8266 Tx -> pin2 (Arduino software serial Rx)
ESP8266 Rx <- Voltage Divider <- pin3 (Arduino software serial Tx)
*/
Here's my code
#define esp8266 Serial2
#define CH_PD Vcc // but needs a narrow low pulse
#define speed8266 9600 // This is the speed that worked with my ESP8266
void setup()
{
esp8266.begin (speed8266);
Serial.begin(9600);
reset8266(); // Pin CH_PD need a reset before start communication
}
void loop()
{
while(esp8266.available())
{ Serial.write(esp8266.read()); }
while(Serial.available())
{ esp8266.write(Serial.read()); }
}
/*************************************************/
// Reset funtion to accept communication
void reset8266 ()
{
pinMode(CH_PD, OUTPUT);
digitalWrite(CH_PD, LOW);
delay(300);
digitalWrite(CH_PD, HIGH);
}
Here are some snaps of the configuration i did in NodeMCU ( i had already tried with different baud rates)
