ESP8266 Community Forum

- Mon Jun 29, 2015 6:03 am #21960 Thank you!!!
Now I can read Serial1:

ets Jan 8 2013,rst cause:2, boot mode:(3,7)
load 0x40100

But what does it means?
So, Serial1.find("Ready") returns false, and I can't use my ESP-01.
Sorry, but I'm a really noob.

- Mon Jun 29, 2015 6:44 am #21962 Hi FabCa
What have you got connected to GPIO0 and GPIO2? If you look at post #3 in this thread http://www.esp8266.com/viewtopic.php?f=13&t=1730 you will see

For a regular boot both GPIO0 and GPIO2 need to be floating, or pulled up with a resistor to Vcc. If at a regular boot either GPIO0 or GPIO2 is LOW, it will not boot.

Update
I have just had a better look at your code. You are using 2 serial ports. I believe the esp8266-01 only has one. What software are you flashing, LUA or Arduino IDE?
Also start at a very basic level. Use only one serial port and try to get the esp-01 to echo back what you type.

If you are using the Arduino IDE then have a look at this simple ECHO sketch http://arduinobasics.blogspot.co.uk/2012/07/arduino-basics-simple-arduino-serial.html
I set my sketches to run a 74880 so that I can see the boot time messages.

I also see from the following message that Gerry has located a fundamental flaw in your code.

Last edited by AcmeUK on Mon Jun 29, 2015 7:11 am, edited 2 times in total.

- Mon Jun 29, 2015 7:05 am #21964 Hi

Serial1 has only a tx function see https://github.com/esp8266/Arduino#serial

regards

Gerry

- Mon Jun 29, 2015 11:22 am #21978 ?

Serial is the standard Serial of Arduino (to see output for debugging)
Serial1 pins of Mega, instead, are connected to ESP-01. So, I use only one serial with ESP-01: Serial1 tx & RX pins.