Hello: any input would help a lot. I’m stressing to try to do a simple webserver for my daughters science project.
I have Arduino.exe 1.0.6, R2 and R3 Unos. I transmit on 2 and receive on 3.
My problem is that I get garbage characters while talking to ESP8266 (the new 9600 baud) modules using both a R2 and R3 Uno. I am using a Voltage divider. If I send a long command, e.g. AT+CPSTART… then I always some garbage characters back. BUT if I tee the ESP8266 Tx line into a USB-TTL device I never get garbage characters in the putty.exe terminal’s window.
I put delays in the Tx part, no help. I shouldn’t receive more than 64 bytes at a time, so I don’t know what is going on.
I tried a loopback test by writing characters on pin 2 and receiving them on 3. But I don’t get a single character?
I noticed also if I send tons of data to ESP chip (send AT, wait for OK), it works better if my hardware serial port is 1200 not 9600?