Web based ATV Relay Control - Versionsgeschichte

Dl8rds: /* Useful Links */

2018-02-15T14:31:20Z

‎Useful Links

2018-02-15T14:29:01Z

2018-02-15T14:11:47Z

‎Control Element

2018-02-15T13:25:27Z

‎Control Element

2018-02-15T13:21:01Z

‎Raspberry Pi Code

2018-02-15T10:34:09Z

‎Connectivity

2018-02-15T10:12:03Z

‎Arduino Code

2018-02-15T10:06:48Z

‎Libraries

2018-02-15T10:05:12Z

‎Libraries

2018-02-15T09:58:15Z

‎Libraries

@@ Zeile 17: / Zeile 17: @@
 * http://www.horter.de/i2c/i2c-beispiele/arduino_1.html
 * https://github.com/basilfx/Arduino-CommandLine
 * http://vitech-blog.de/raspberry-pi-temperaturmessung-mit-dem-lm75/

@@ Zeile 1: / Zeile 1: @@
 == Scope ==
-Out ATV relay DB0MHB is a microcontroller based system that can be controlled through DTMF tones, but is still lacking HAMNET support even though we have HAMNET connectivity at our location.
+Our ATV relay DB0MHB is a microcontroller based system that can be controlled through DTMF tones, but is still lacking HAMNET support even though we have HAMNET connectivity at our location.
 In order to control it through a web page, we decided to upgrade it with pinouts from the DTMF panel. These pinouts will be translated in an ARDUINO Mega 1280 which has a sufficient number of GPIOs, and the Arduino is supposed to provide a serial interface to the relay.

@@ Zeile 864: / Zeile 864: @@
 As you can see, a clock triggers a function call to the JavaScript function "steuertaste", which implements the XMLHttpRequest object invocation, pointing to the CGI script given above.
 == Pictures ==
 [[Image:2018-01-21-Serial-ATV-Controller-1.jpg|400px]]

@@ Zeile 835: / Zeile 835: @@
 === Control Element ===
-<html>
+The control element (the DTMF keyboard) is generated like this:
 <table>
@@ Zeile 859: / Zeile 861: @@
 </tr>
 </table>
-</html>
+</pre>
 == Pictures ==
 [[Image:2018-01-21-Serial-ATV-Controller-1.jpg|400px]]

@@ Zeile 832: / Zeile 832: @@
 This script is called from our internal control page via a XMLHttpRequest function.
 == Pictures ==
 [[Image:2018-01-21-Serial-ATV-Controller-1.jpg|400px]]

← Nächstältere Version		Version vom 15. Februar 2018, 10:34 Uhr
Zeile 36:		Zeile 36:

	We have a 37 pin cable coming down from the relay controller into my Arduino Mega 1280. The 1280 has a sufficient number of GPIOs, so that's fine. Unfortunately we have a small twister, so two cables are not wired correctly. No matter, we can compensate that in the code...		We have a 37 pin cable coming down from the relay controller into my Arduino Mega 1280. The 1280 has a sufficient number of GPIOs, so that's fine. Unfortunately we have a small twister, so two cables are not wired correctly. No matter, we can compensate that in the code...
		+
		+	[[Image:2018-02-15-Seeeduino-Mega-1280.jpg\|400px]]

	The DTMF keyboard that needs to be emulated, is controlled through four lines:		The DTMF keyboard that needs to be emulated, is controlled through four lines:

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 == Arduino Code ==
 === Final Arduino Code ===
 Here are good ressources:

← Nächstältere Version		Version vom 15. Februar 2018, 10:06 Uhr
Zeile 32:		Zeile 32:

	Adding commands was easy.		Adding commands was easy.
−
−	~~Note: The reason for the "t7" problem was the retarded reaction of opto couplers. Insight: Do not use optocouplers if you have a timing sensitive application!~~
−
−	~~[[Image:2018-02-15-MHB-verzoegerte-Signale.jpg\|400px]]~~
−
−	~~We implemented a transistor based logic and now it works like a charm.~~

	== Connectivity ==		== Connectivity ==

← Nächstältere Version		Version vom 15. Februar 2018, 10:05 Uhr
Zeile 34:		Zeile 34:

	Note: The reason for the "t7" problem was the retarded reaction of opto couplers. Insight: Do not use optocouplers if you have a timing sensitive application!		Note: The reason for the "t7" problem was the retarded reaction of opto couplers. Insight: Do not use optocouplers if you have a timing sensitive application!
		+
		+	[[Image:2018-02-15-MHB-verzoegerte-Signale.jpg\|400px]]

	We implemented a transistor based logic and now it works like a charm.		We implemented a transistor based logic and now it works like a charm.

@@ Zeile 31: / Zeile 31: @@
 The second library I tried gave me way better results: https://github.com/fakufaku/CmdArduino
 Adding commands was easy.
 == Connectivity ==