Difference between revisions of "Adafruit HUZZAH ESP8266 breakout"

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* Buy from AdaFruit (https://www.adafruit.com/products/2471)
 
* Buy from AdaFruit (https://www.adafruit.com/products/2471)
−
* Don't forget cable (https://www.adafruit.com/product/954)
+
* Don't forget cable
 +
** **** Windows only***** (https://www.adafruit.com/product/954)
 +
** Mac Users need FTDI cable (https://www.adafruit.com/product/70)
 +
** Also, FTDI Friend (https://www.adafruit.com/product/284)
 +
*** Windows/Mac users will need driver from http://www.ftdichip.com/Drivers/VCP.htm
 +
* Follow instructions for "Installing with Boards Manager" to add support to the Arduino Environment for the ESP8266 chip (https://github.com/esp8266/Arduino)
 
* Overview doc (https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/overview)
 
* Overview doc (https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/overview)
−
* Follow instructions for adding support to the Arduino Environment for the ESP8266 chip (https://github.com/esp8266/Arduino)
 
 
* Connect USB Console cable to board (https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide)
 
* Connect USB Console cable to board (https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide)
−
* Copy the Blink Test code from https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide to test. Red light should blink.
 
 
* Remember, before every download you have to:
 
* Remember, before every download you have to:
 
**Hold down the GPIO0 button, the red LED will be lit
 
**Hold down the GPIO0 button, the red LED will be lit
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**Release RESET, then release GPIO0
 
**Release RESET, then release GPIO0
 
**When you release the RESET button, the red LED will be lit dimly, this means its ready to bootload
 
**When you release the RESET button, the red LED will be lit dimly, this means its ready to bootload
 +
** You get the warning: espcomm_syn failed message if you forget to do this
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** Wait until the dots stop on the bottom console window to open the serial console
 
** (from https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide)
 
** (from https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide)
 +
* Copy the Blink Test code from https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide to test. Red light should blink.
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* Copy the Connecting via WiFi code from https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide.
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** Change ssid to "wustl-guest-2.0"
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** Change password  to ""
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** Upload program.
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** Open the serial monitor to see IP and messages from adafruit web server. Make sure the serial data rate is set to 115200 baud.
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* Get Mac Address of ESP8266
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** Add this code to the setup function of the WiFi code
 +
  uint8_t macArray[6];
 +
  WiFi.macAddress(macArray) ;
 +
  for (int i=0;i<sizeof(macArray) ; i++) {
 +
    Serial.print(macArray[i],HEX) ;
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    if (i != sizeof(macArray)-1) {
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      Serial.print(":") ;
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    } else {
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      Serial.println("");
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    }
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  }
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* UDP Packets
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** SSID: wustl-guest-2.0
 +
***You can use wustl-guest-2.0 for web traffic but all of the other ports are block by the university firewall. However, we have our own wireless network in Bryan 316 for your use.
 +
** SSID: Bryan316
 +
*** Your ESP8266 module can use the SSID: Bryan316 but you have to send your MAC Address to Ed Richter (ed@ese.wustl.edu) so he can add your device to he access list.
 +
** UDP Communication
 +
*** Download [[media:UDPExample.zip|UDPExample.zip]]
 +
*** The .zip file includes example code to transmit and receive UDP packets to the ESP8266.
 +
**** UDP2ESP8266.vi is a LabVIEW program that can run on your computer. It transmits a random number to the IP of your ESP8266 on port 9999 and receives packets from the same IP on port 1000.
 +
**** UDPExample.ino is a slightly modified version of a UDP Example on the ESP8266 forum. This program receives a UDP Packet on port 9999 and retransmits it to the same IP on port 1000.

Latest revision as of 03:04, 15 June 2016

 uint8_t macArray[6];
 WiFi.macAddress(macArray) ;
 for (int i=0;i<sizeof(macArray) ; i++) {
   Serial.print(macArray[i],HEX) ;
   if (i != sizeof(macArray)-1) {
     Serial.print(":") ;
   } else {
     Serial.println("");
   }
 }
  • UDP Packets
    • SSID: wustl-guest-2.0
      • You can use wustl-guest-2.0 for web traffic but all of the other ports are block by the university firewall. However, we have our own wireless network in Bryan 316 for your use.
    • SSID: Bryan316
      • Your ESP8266 module can use the SSID: Bryan316 but you have to send your MAC Address to Ed Richter (ed@ese.wustl.edu) so he can add your device to he access list.
    • UDP Communication
      • Download UDPExample.zip
      • The .zip file includes example code to transmit and receive UDP packets to the ESP8266.
        • UDP2ESP8266.vi is a LabVIEW program that can run on your computer. It transmits a random number to the IP of your ESP8266 on port 9999 and receives packets from the same IP on port 1000.
        • UDPExample.ino is a slightly modified version of a UDP Example on the ESP8266 forum. This program receives a UDP Packet on port 9999 and retransmits it to the same IP on port 1000.
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