wifi shield not respond
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Hello,
I have a problem with a wifi shield v3.0.
The arduino romeo v2.2 send a command AT with serial1.println but the wifi not respond.
I place the oscilloscope on RX and i have not of respond.
Furthermore, i measure a voltage of 3.5V...? (not 5V?).
Do i put a resistor of pull-up?
Thank in advance,
Best regards
I have a problem with a wifi shield v3.0.
The arduino romeo v2.2 send a command AT with serial1.println but the wifi not respond.
I place the oscilloscope on RX and i have not of respond.
Furthermore, i measure a voltage of 3.5V...? (not 5V?).
Do i put a resistor of pull-up?
Thank in advance,
Best regards
2016-07-08 15:02:50 Aho, got it, so you sent the AT commands originally for ESP to this wifi shield...seems you are browsing many wifi modules.
Just a interesting question Id like to know, which module do you love the most?
Leff
Just a interesting question Id like to know, which module do you love the most?
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2016-07-08 04:18:30 Yes, of course !
I sent the commands of ESP and not of wifi shield...
I come to test your commands of wifi shield and it work !
Again thank.
peetscholsem
I sent the commands of ESP and not of wifi shield...
I come to test your commands of wifi shield and it work !
Again thank.
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2016-07-07 18:07:41 I thought you are using this wifi shield, http://www.dfrobot.com/wiki/index.php?t ... KU:TEL0078, isn't it?
Leff
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2016-07-07 16:50:34 Thank you very much.
I try this evening.
I don't watch correctly.
I have used an esp8266 and i had to send the commands AT...
It's strange to send "+++" but it's write in the datasheet !
peetscholsem
I try this evening.
I don't watch correctly.
I have used an esp8266 and i had to send the commands AT...
It's strange to send "+++" but it's write in the datasheet !
![userHeadPic](https://dfimg.dfrobot.com/dfPortrait2.png)
2016-07-07 15:56:11 Hi,
I found nothing talking about how to use AT command in the wiki. However, I found some notes in its user manual, here is the manual download link https://github.com/Arduinolibrary/DFRob ... 20V2.4.pdf
And at page 53 and 54, it reads this:
I found nothing talking about how to use AT command in the wiki. However, I found some notes in its user manual, here is the manual download link https://github.com/Arduinolibrary/DFRob ... 20V2.4.pdf
And at page 53 and 54, it reads this:
So I tried on UNO through Serial monitor, no problem as you could see
Also I wrote a simple code for Leonardo, after uploading, OPEN the Serial monitor, I could see I successfully entered AT mode and received responce.
the code:
Code: Select all
void setup() {
Serial.begin(115200);
Serial1.begin(115200);
while (!Serial) {
}
Serial.println("Prepare to enter AT mode.");
Serial1.print("+++");
delay(50);
Serial1.print("a");
delay(100);
while (Serial1.available()) {
char inData = Serial1.read();
if ( inData == 'k') {
Serial.println("+ok");
Serial.println("Entered AT mode.");
break;
}
}
}
void loop() {
Serial1.println("AT+WMODE");
while (Serial1.available()) {
Serial.write(Serial1.read());
}
delay(1000);
}