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esp8266_firmware_update [2014/11/08 23:49]
g4wnc-mike 		esp8266_firmware_update [2020/06/27 23:02] (current)
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 Before you start the update, make sure your ESP8266 is working normally as follows: Before you start the update, make sure your ESP8266 is working normally as follows:
   - Connect-up as above but leave GPIO0 floating.   - Connect-up as above but leave GPIO0 floating.
-  - Access the serial interface with a terminal program such as PuTTY.+  - Access the serial interface with a terminal program such as PuTTY or Termite.
   - Set the terminal s/w baud rate to either 57600 or 115200 (depends on whether you have an early or later model). The CoolComponents models are 115200.   - Set the terminal s/w baud rate to either 57600 or 115200 (depends on whether you have an early or later model). The CoolComponents models are 115200.
   - Power-up the ESP8266 and you should see some readable text indicating that it's ready. If you get nonsense try changing the baud rate.   - Power-up the ESP8266 and you should see some readable text indicating that it's ready. If you get nonsense try changing the baud rate.
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 ===== Firmware Update ===== ===== Firmware Update =====
 +==== Windows ====
 Here are the steps required to update the firmware: Here are the steps required to update the firmware:
 +{{ :esp1.jpg?200|}} 
 +{{ :esp2.jpg?200|}}
   - Put the ESP8266 into firmware update mode by grounding GPIO0 and re-cycling the power.   - Put the ESP8266 into firmware update mode by grounding GPIO0 and re-cycling the power.
   - Launch XTCOM_UTIL.   - Launch XTCOM_UTIL.
-  - In the Tools menu choose Config Device and set the Com port and set the baud rate to the value you used during testing (57600 or 115200). Click Open but **don't close this panel**.+  - In the Tools menu choose Config Device and set the Com port and set the baud rate to the value you used during testing (57600 or 115200). Click Open then Connect but **don't close this panel**.
   - From the API TEST(A) menu choose Flash Image Download and browse to the downloaded firmware .bin file   - From the API TEST(A) menu choose Flash Image Download and browse to the downloaded firmware .bin file
   - Click DownLoad to start the update - the progress bar will confirm it's under way.   - Click DownLoad to start the update - the progress bar will confirm it's under way.
   - That's it!   - That's it!
  
 +==== Linux or OS X ====
 +
 +  - Ensure that you have python and the pyserial module installed
 +  - Put the ESP8266 into firmware update mode by grounding GPIO0 and re-cycling the power.
 +  - Get the esptool from [[https://github.com/themadinventor/esptool|github]]
 +  - In esptool.py change the device from ttyUSB0 to what ever your usb-serial is
 +  - Run ./esptool.py write_flash 0x000000 New_Firmware.bin (changing New_Firmware.bin to the downloaded firmware file)
 +  - The script will write the firmware to the device.
 ===== Testing ===== ===== Testing =====
  
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 You can now use the serial connection to try a few AT commands. You can now use the serial connection to try a few AT commands.
  
-**NB:** Following the update, the default serial baud rate changes to 9600 and AT commands require a CR+LF combination to signal completion. Some terminal programs (PuTTY) refuse to send the CR+LF combination so you need to press Enter followed by CTRL-j.+**NB:** Following the update, the default serial baud rate changes to 9600 and AT commands require a CR+LF combination to signal completion. Some terminal programs (PuTTY) refuse to send the CR+LF combination so you need to press Enter followed by CTRL-j. An alternative terminal that does handle CR+LF is Termite: [[http://www.compuphase.com/software_termite.htm]].
  
-**NB:**When entering AT commands you cannot use backspace to make corrections as each character is sent as it is typed.+**NB:** When entering AT commands with PuTTY you cannot use backspace to make corrections as each character is sent as it is typed.
  
 To connect to your local WiFi network use the following commands: To connect to your local WiFi network use the following commands:
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   * To get the IP address: AT+CIFSR   * To get the IP address: AT+CIFSR
   * To get the ssid of the connected router: AT+CWJAP?   * To get the ssid of the connected router: AT+CWJAP?
 +
 +===== Setup an ESP8266 Based Gateway =====
 +
 +Chris Stubbs has  done the pioneering work and produced software to control the ESP8266 from an Arduino based board. The details can be found [[ideas:esp8266|here]] and all you need to do to get on the air is to create updated wifiConfig and NodeConfig files with your WiFi and node details.
 +
 +**NB:** When connecting the Moteino or other Arduino board to the ESP8266 the Tx and Rx lines need to be reversed, i.e.Tx on Arduino goes to Rx on Moteino and vice-versa.
 +
 +===== Next Steps =====
  
  
 +It should be possible to use the SoC processor in the ESP8266 to control the RFM69 directly thereby eliminating the need for the Arduino but that code hasn't been written yet.
  
  
esp8266_firmware_update.1415490589.txt.gz · Last modified: 2020/06/27 23:02 (external edit)

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