Hello !!! I have connected the ESP8266 module on TX and RX to an Arduino UNO and cannot connect to the io.adafruit.com platform. Below is the program code. On the ESP8266 NodeMCU WiFi module I connect without any problem, and here when I connect the wifi separately I have the problem. ESP8266 +...

Have you checked that the ESP module has AT firmware loaded? What version is it in? The connections should be RX-TX/TX-RX. After the command WiFi.init(&Serial1) you can check WiFi.firmwareVersion() - it returns a text string, you can send it via Serial.print(). It will return an empty string as there is no connectivity to the ESP. Generally SoftwareSerial at 115200 is unlikely to work properly - the maximum is 38400. You would need to plug in a serial terminal to the ESP and reduce the default baud rate, preferably to 9600 as in the examples for the WiFiEsp library.

Thank you kol khoam for your help Actually setting the speed to 9600 helped Greetings !!!!

ESP8266 with Arduino UNO does not connect to io.adafruit.com

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#1 18411233 18 Jan 2020 16:32

robo1973 robo1973

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18411233 18 Jan 2020 16:32

Hello !!!
I have connected the ESP8266 module on TX and RX to an Arduino UNO and cannot connect to the io.adafruit.com platform.
Below is the program code. On the ESP8266 NodeMCU WiFi module I connect without any problem, and here when I connect the wifi separately I have the problem.
ESP8266 + Ardurino connects to wifi, but cannot with io.adafruit.com, so that wifi works.

Maybe something with the WiFiEspClient client; ?
On the nodeMCU I use WiFiClien ?
Code: C / C++
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#2 18412004 18 Jan 2020 21:21

Anonymous Anonymous

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Post #2
18412004 18 Jan 2020 21:21

Have you checked that the ESP module has AT firmware loaded? What version is it in? The connections should be RX-TX/TX-RX.
After the command WiFi.init(&Serial1) you can check WiFi.firmwareVersion() - it returns a text string, you can send it via Serial.print(). It will return an empty string as there is no connectivity to the ESP.

Generally SoftwareSerial at 115200 is unlikely to work properly - the maximum is 38400. You would need to plug in a serial terminal to the ESP and reduce the default baud rate, preferably to 9600 as in the examples for the WiFiEsp library.
#3 18413089 19 Jan 2020 14:04

robo1973 robo1973

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Post #3
18413089 19 Jan 2020 14:04

Thank you kol khoam for your help Actually setting the speed to 9600 helped
Greetings !!!!
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