ESP8266 - Revision history

S130074 at 16:51, 5 June 2016

2016-06-05T16:51:02Z

← Older revision		Revision as of 18:51, 5 June 2016
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	[[File:esp8266.jpg\|300px]]		[[File:esp8266.jpg\|300px]]


			By Jesper H. Christensen
	==Hardware needed==		==Hardware needed==
	For setting up the ESP8266 the following parts will be needed:		For setting up the ESP8266 the following parts will be needed:

S130074: /* Setup as TCP Server */

2016-04-22T09:24:18Z

Setup as TCP Server

← Older revision		Revision as of 11:24, 22 April 2016
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	4. Type some text into the telnet session, e.g. '''RegBots are cool!'''.		4. Type some text into the telnet session, e.g. '''RegBots are cool!'''.

	5. The module should display following '''+IDP,0,17:RegBots are cool!''' with '''0''' being the connection channel and '''17''' being the length of the received.		5. The module should display following '''+IDP,0,17:RegBots are cool!''' with '''0''' being the connection channel and '''17''' being the length of the received data.

	6. Send some data in response with the '''CIPSEND''' command '''AT+CIPSEND=0,13''' where '''0''' is the channel and '''13''' the length of the data. The module will display the prompt '''>''' and the data is to be typed and send '''Yes they are!'''.		6. Send some data in response with the '''CIPSEND''' command '''AT+CIPSEND=0,13''' where '''0''' is the channel and '''13''' the length of the data. The module will display the prompt '''>''' and the data is to be typed and send '''Yes they are!'''.
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	7. The telnet session should display '''Yes they are!'''.		7. The telnet session should display '''Yes they are!'''.

	Setting up a TCP server must be done with every restart unlike accessing a known WiFi access point which is done automatically after being connected once.		Setting up a TCP server must be done with every restart unlike accessing a known WiFi access point which is done automatically after being connected once.

	==Wiring==		==Wiring==

S130074: /* Connecting to WiFi */

2016-04-22T09:23:27Z

Connecting to WiFi

← Older revision		Revision as of 11:23, 22 April 2016
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	* Check the firmware version by typing '''AT+GMR'''.		* Check the firmware version by typing '''AT+GMR'''.
	* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.		* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.
	* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="~~dtuDummyNey~~","dummyPass"''' and check if the module got an IP with '''AT+CIFSR'''.		* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="dtuDummyNet","dummyPass"''' and check if the module got an IP with '''AT+CIFSR'''.

	If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.		If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.

S130074: /* Connecting to WiFi */

2016-04-22T09:23:17Z

Connecting to WiFi

← Older revision		Revision as of 11:23, 22 April 2016
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	* Check the firmware version by typing '''AT+GMR'''.		* Check the firmware version by typing '''AT+GMR'''.
	* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.		* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.
	* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="~~dtudummyney~~","~~dummypass~~"''' and check if the module got an IP with '''AT+CIFSR'''.		* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="dtuDummyNey","dummyPass"''' and check if the module got an IP with '''AT+CIFSR'''.

	If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.		If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.

S130074: /* Connecting to WiFi */

2016-04-22T09:23:02Z

Connecting to WiFi

← Older revision		Revision as of 11:23, 22 April 2016
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	* Check the firmware version by typing '''AT+GMR'''.		* Check the firmware version by typing '''AT+GMR'''.
	* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.		* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.
	* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="~~WiFiSSID~~","~~Password~~"''' and check if the module got an IP with '''AT+CIFSR'''.		* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="dtudummyney","dummypass"''' and check if the module got an IP with '''AT+CIFSR'''.

	If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.		If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.

S130074: /* Utilization */

2016-04-22T09:21:15Z

Utilization

← Older revision		Revision as of 11:21, 22 April 2016
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	and preferably create a method that waits for the response so that the module is ready to receive the next command.		and preferably create a method that waits for the response so that the module is ready to receive the next command.

	A '''very''' important '''note''' is that when using the '''CIPSEND''' command to transmit data from the server to the client, the client '''must''' respond. Otherwise the server will continue to think that it is in ''"send-mode"'' and will keep on transmitting until the ~~clients responds~~.		A '''very''' important '''note''' is that when using the '''CIPSEND''' command to transmit data from the server to the client, the client '''must''' respond. Otherwise the server will continue to think that it is in ''"send-mode"'' and will keep on transmitting until the client has responded.

S130074: /* Utilization */

2016-04-22T09:21:04Z

Utilization

← Older revision		Revision as of 11:21, 22 April 2016
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	and preferably create a method that waits for the response so that the module is ready to receive the next command.		and preferably create a method that waits for the response so that the module is ready to receive the next command.

			A '''very''' important '''note''' is that when using the '''CIPSEND''' command to transmit data from the server to the client, the client '''must''' respond. Otherwise the server will continue to think that it is in ''"send-mode"'' and will keep on transmitting until the clients responds.

S130074: /* Connecting to WiFi */

2016-04-19T07:20:44Z

Connecting to WiFi

← Older revision		Revision as of 09:20, 19 April 2016
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	* Check the firmware version by typing '''AT+GMR'''.		* Check the firmware version by typing '''AT+GMR'''.
	* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.		* Enable the module to both act as '''station''' and '''access point''' by typing '''AT+CWMODE=3'''. Response should be '''OK'''.
	* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' and check if the module got an IP with '''AT+CIFSR'''.		* Join a WiFi access point by typing '''AT+CWJAP="<access_point_name>","<password>"''' e.g. '''AT+CWJAP="WiFiSSID","Password"''' and check if the module got an IP with '''AT+CIFSR'''.

	If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.		If the above has been done successfully the ESP8266 is now connected to the desired WiFi access point, and will remember this access point even if the module is restarted.

S130074: /* Wiring */

2016-04-18T20:54:20Z

Wiring

← Older revision		Revision as of 22:54, 18 April 2016
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	[[File:esp8266schematic.png\|600px]]		[[File:esp8266schematic.png\|600px]]

	The 3v3 pin on the Teensy is known to ~~not~~ be able to deliver enough current to the ESP8266 which ~~needs~~ approx 220mA. Instead the 5V pin is used which is connected directly to the RegBots 5V power supply and a voltage regulator is used to level the voltage. "Chip powerdown" and "reset" needs to be pulled up to VCC. RX goes to TX and vice versa.		The 3v3 pin on the Teensy is known not to be able to deliver enough current to the ESP8266 which can draw approx 220mA at the most. Instead the 5V pin is used which is connected directly to the RegBots 5V power supply and a voltage regulator is used to level the voltage. "Chip powerdown" and "reset" needs to be pulled up to VCC. RX goes to TX and vice versa.

	==Utilization==		==Utilization==

S130074: /* Initial setup */

2016-04-18T20:51:14Z

Initial setup

← Older revision		Revision as of 22:51, 18 April 2016
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	4. Default firmware version uses '''115200 baud''' as communication speed.		4. Default firmware version uses '''115200 baud''' as communication speed.

	When turning on the device the objective is to see some characters followed by '''ready'''. Never mind if the characters are rubbish as long as '''ready''' shows in the end. If this is not achieved check the wiring and play around with the baud rate or/and line ending until success, as it might vary ~~from~~ firmware versions.		When turning on the device the objective is to see some characters followed by '''ready'''. Never mind if the characters are rubbish as long as '''ready''' shows in the end. If this is not achieved check the wiring and play around with the baud rate or/and line ending until success, as it might vary with firmware versions.

	==Connecting to WiFi==		==Connecting to WiFi==