COOLTERM ESP8266 SERIAL
COOLTERM ESP8266 CODE

Early days and entering information into the thing is not ideal, especially for Windows programmers – so I wrote a little serial terminal to do the job. Indeed with a little work it’s useful on it’s own. It offers cheap WIFI to add to an embedded microprocessor project. This blog refers to the ESP8266, which is a small, inexpensive board for embedded processing. #include #define SSID ' ' // I delete it when post here #define PASS ' ' // I delete it when post here #define IP '184.106.153.149' // thingspeak.This one is definitely only for a very narrow selection of techies – and is also featured in my tech blog – the only reason it is in here as I’ve had lots of help from a Chinese manufacturer and they were interested in the blog – but the great firewall of China seems to have blocked it – so I thought it only reasonable to put it somewhere they could access the entry. the 2 led on esp still on, I connect nothing to Uno.

COOLTERM ESP8266 CODE

If anyone want to see my version of the code it's here.

Is there anyway to check if the ESP really is getting a connection since my thingspeak refuses to upload! when I try and run it and monitor it in the IDE, I followed RidhwanA's suggestion to connect the reset of the ESP to the 3.3V to and I read that somewhere else to that it's needed for the thing to work.Ĭhrisrust drawings made it a bit clearer to since I'm a noob and thought that the part of the code that says 'SoftwareSerial monitor(10, 11) // RX, TX' ment that I should connect the RX from the ESP to 10 and the TX to 11 but still no go! I've followed the guide but instead of powering the ESP from the arduino 3.3v I got a separate powerbar that gives me both 5V and 3.3 so I'm getting all the juice from there. I've been trying two days now to get this to work and I'm tearing my hair here! This gave me better results as stand alone. Load the same sketch without SoftwareSerial Monitor. String tempF = dtostrf(tempC, 4, 1, buffer) TempC = DallasTemperature::toFahrenheit(tempC) SoftwareSerial monitor(10, 11) // RX, TXįloat tempC = sensors.getTempCByIndex(0) *Note also had to do USB-to-TTL GND to Arduino GND Remember to connect GPIO0 to GND when you are uploading new firmware. Regular usage for the ESP8266 is at 70mA. But at the time I had no other regulated 3.3v available. I know that Arduino vcc 3.3v max is output is 150 mA and ESP8266 will peak at 240 mA. I used the regulated 3.3v vcc of the Arduino to power the ESP8266. These are the pin connections I used on ESP8266 to USB-to-TTL. Here is the command to change the baud rate: The best way to test a good connection is by using a USB-to-TTL cable and using a terminal like CoolTerm. Follow these steps to load this firmware.

The best results came when I loaded V0.922 which allowed me to change the baud rate to 9600. The second one (newer) has the LEDs by the antenna. The first one has the notification LEDs right next to the board pins. Note that are two version of the ESP8266 going around. I spent a lot of time testing different configurations.

Coolterm esp8266