ATmega328 PPM Encoder Board - Revision history

Scdwyer: add link to new ppm encoder page

2012-03-05T02:08:47Z

add link to new ppm encoder page

← Older revision		Revision as of 20:08, 4 March 2012
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			[[ATmega_PPM_Encoder_Board\|PLEASE USE NEW PPM ENCODER PAGE]]

	<p>Thanks to Chris we have a way to use virtually any RC receiver with Paparazzi without any modifications to the receiver.</p>		<p>Thanks to Chris we have a way to use virtually any RC receiver with Paparazzi without any modifications to the receiver.</p>
	<p>This board plugs into the servo output ports on a R/C receiver and encodes them into a single PPM pulse suitable for the paparazzi autopilot. It is also possible to remap channels by changing the connection between the receiver and the encoder. Want Tx ch5 to be output on ch7 of the ppm stream? Just connect the Ch5 signal from the receiver to the Ch7 input on the encoder.</p>		<p>This board plugs into the servo output ports on a R/C receiver and encodes them into a single PPM pulse suitable for the paparazzi autopilot. It is also possible to remap channels by changing the connection between the receiver and the encoder. Want Tx ch5 to be output on ch7 of the ppm stream? Just connect the Ch5 signal from the receiver to the Ch7 input on the encoder.</p>

Flixr: /* Radio file considerations */

2011-11-18T09:50:11Z

Radio file considerations

← Older revision		Revision as of 03:50, 18 November 2011
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	See the [[Radio_Control]] page for more details, here the short version:		See the [[Radio_Control]] page for more details, here the short version:

	1. The encoder board outputs 8ch so your radio.xml file '''must have 8 channels''' with distinct names.<br>		1. The encoder board outputs 8ch so your radio.xml file '''must have 8 channels''' with distinct function names.<br>
	2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:		2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:
	<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">		<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">

Flixr at 09:49, 18 November 2011

2011-11-18T09:49:11Z

← Older revision		Revision as of 03:49, 18 November 2011
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	Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.		Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.
	= ~~Airframe~~ file considerations =		== Radio file considerations ==
	1. The encoder board outputs 8ch so your radio.xml file '''must have 8 channels'''.<br>		See the [[Radio_Control]] page for more details, here the short version:

			1. The encoder board outputs 8ch so your radio.xml file '''must have 8 channels''' with distinct names.<br>
	2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:		2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:
	<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">		<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">
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	Note on Ch3 (3rd channel row) I reversed the PPM signals from 950, 2050 to 2050, 950. That was because on my funjet the ailerons were reversed. I went to this file and reversed them there not in the Tx.		Note on Ch3 (3rd channel row) I reversed the PPM signals from 950, 2050 to 2050, 950. That was because on my funjet the ailerons were reversed. I went to this file and reversed them there not in the Tx.

	= Programming the PPM encoder =		== Programming the PPM encoder ==
	<p>Programming the board can easily be accomplished using an AVR ISP (in-serial programming) programmer. These are inexpensive and can be found many places online. Once you have the ISP connected to the PPM encoder, simply use avrdude with the following command:</p>		<p>Programming the board can easily be accomplished using an AVR ISP (in-serial programming) programmer. These are inexpensive and can be found many places online. Once you have the ISP connected to the PPM encoder, simply use avrdude with the following command:</p>

Flixr: /* Airframe file considerations */

2011-11-18T09:15:53Z

Airframe file considerations

← Older revision		Revision as of 03:15, 18 November 2011
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	Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.		Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.
	= Airframe file considerations =		= Airframe file considerations =
	1. The encoder board outputs 8ch so your radio.xml file must have ~~8ch~~		1. The encoder board outputs 8ch so your radio.xml file '''must have 8 channels'''.<br>
	2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:		2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:
	<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">		<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">
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	<channel ctl="H" function="GAIN2" min="950" neutral="1500" max="2050" average="1"/>		<channel ctl="H" function="GAIN2" min="950" neutral="1500" max="2050" average="1"/>
	</radio>		</radio>
	Note on Ch3 (3rd channel row) I reversed the PPM signals from 950, 2050 to 2050, 950. That was because on my funjet the ailerons were reversed. I went to this file and reversed them there not in the Tx.		Note on Ch3 (3rd channel row) I reversed the PPM signals from 950, 2050 to 2050, 950. That was because on my funjet the ailerons were reversed. I went to this file and reversed them there not in the Tx.

	= Programming the PPM encoder =		= Programming the PPM encoder =

Dconger at 02:46, 4 July 2011

2011-07-04T02:46:43Z

← Older revision		Revision as of 20:46, 3 July 2011
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	= Airframe file considerations =		= Airframe file considerations =
	1. The encoder board outputs 8ch so your radio.xml file must have 8ch		1. The encoder board outputs 8ch so your radio.xml file must have 8ch
	2. The encoder board outputs ~~NEGATIVE~~ regardless of your Tx so the first line of your radio.xml needs to be like:		2. The encoder board outputs POSITIVE regardless of your Tx so the first line of your radio.xml needs to be like:
	<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">		<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">
	3. If channels are not mapped properly don't worry, the file has 8 lines, one for each channel, just alter the order. The first row is ch1, the second ch2 and so on.		3. If channels are not mapped properly don't worry, the file has 8 lines, one for each channel, just alter the order. The first row is ch1, the second ch2 and so on.

Dconger at 02:45, 4 July 2011

2011-07-04T02:45:56Z

← Older revision		Revision as of 20:45, 3 July 2011
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	Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.		Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.
			= Airframe file considerations =
			1. The encoder board outputs 8ch so your radio.xml file must have 8ch
			2. The encoder board outputs NEGATIVE regardless of your Tx so the first line of your radio.xml needs to be like:
			<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">
			3. If channels are not mapped properly don't worry, the file has 8 lines, one for each channel, just alter the order. The first row is ch1, the second ch2 and so on.

			Here's the file I used on my XTremelink 2.4gHz Mx-16Tx and Xtremelink 8ch Rx
			<!DOCTYPE radio SYSTEM "radio.dtd">
			<radio name="MX-16" data_min="800" data_max="2200" sync_min="5000" sync_max="15000" pulse_type="POSITIVE">
			<channel ctl="B" function="THROTTLE" min="950" neutral="950" max="2050" average="0"/>
			<channel ctl="C" function="ROLL" min="950" neutral="1500" max="2050" average="0"/>
			<channel ctl="D" function="PITCH" min="2050" neutral="1500" max="950" average="0"/>
			<channel ctl="A" function="YAW" min="950" neutral="1500" max="2050" average="0"/>
			<channel ctl="E" function="MODE" min="950" neutral="1500" max="2050" average="1"/>
			<channel ctl="F" function="FLAPS" min="950" neutral="1500" max="2050" average="0"/>
			<channel ctl="G" function="GAIN1" min="950" neutral="1500" max="2050" average="1"/>
			<channel ctl="H" function="GAIN2" min="950" neutral="1500" max="2050" average="1"/>
			</radio>
			Note on Ch3 (3rd channel row) I reversed the PPM signals from 950, 2050 to 2050, 950. That was because on my funjet the ailerons were reversed. I went to this file and reversed them there not in the Tx.

	= Programming the PPM encoder =		= Programming the PPM encoder =

Esden at 23:27, 9 March 2011

2011-03-09T23:27:10Z

← Older revision		Revision as of 17:27, 9 March 2011
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	:*download ''[[Media:Gerber_for_PPM_Encoder.zip\|PPM Encoder gerber & drill files (zip)]]''		:*download ''[[Media:Gerber_for_PPM_Encoder.zip\|PPM Encoder gerber & drill files (zip)]]''
	:*download "[[Media:Servo2ppm_manual_v4_2.pdf\|PPM Encoder manual (PDF)]]"		:*download "[[Media:Servo2ppm_manual_v4_2.pdf\|PPM Encoder manual (PDF)]]"

			[[Category:Hardware]] [[Category:RC]]

Dconger at 03:02, 18 February 2011

2011-02-18T03:02:09Z

← Older revision		Revision as of 21:02, 17 February 2011
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	<gallery>		<gallery>
	Image:Ppmencv3_sm.jpg\|Assembled Board		Image:Ppmencv3_sm.jpg\|Assembled Board
	Image:Ppzppmencsetup.jpg\|Example		Image:Ppzppmencsetup.jpg\|Example. Note I am only connecting 5v and Gnd to Ch1 connections. The rest are only PPM signal wire as the connector is 90 degrees and covering only the signal pins on Ch2-7. Ch8 is unconnected and the signal will be generated by the PPM Encoder.
	</gallery>		</gallery>

Dconger at 03:00, 18 February 2011

2011-02-18T03:00:08Z

← Older revision		Revision as of 21:00, 17 February 2011
Line 1:		Line 1:
	<p>Thanks to Chris we have a way to use virtually any RC receiver with Paparazzi without any modifications to the receiver.</p>		<p>Thanks to Chris we have a way to use virtually any RC receiver with Paparazzi without any modifications to the receiver.</p>
	<p>This board plugs into the servo output ports on a R/C receiver and encodes them into a single PPM pulse suitable for the paparazzi autopilot. It is also possible to remap channels by changing the connection between the receiver and the encoder. Want Tx ch5 to be output on ch7 of the ppm stream? Just connect the Ch5 signal from the receiver to the Ch7 input on the encoder.</p>		<p>This board plugs into the servo output ports on a R/C receiver and encodes them into a single PPM pulse suitable for the paparazzi autopilot. It is also possible to remap channels by changing the connection between the receiver and the encoder. Want Tx ch5 to be output on ch7 of the ppm stream? Just connect the Ch5 signal from the receiver to the Ch7 input on the encoder.</p>
	[[Image:Ppmencv3_sm.jpg\|~~250px]]~~		<gallery>
			Image:Ppmencv3_sm.jpg\|Assembled Board
			Image:Ppzppmencsetup.jpg\|Example
			</gallery>

	Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.		Note: see the [[ATmega168_PPM_Encoder_Board]] page for the more recent hardware version. Wiki refactor in progress, these pages will be merged.

Lina: /* Programming the PPM encoder */

2011-01-13T03:45:49Z

Programming the PPM encoder

@@ Line 7: / Line 7: @@
 = Programming the PPM encoder =
 <p>Programming the board can easily be accomplished using an AVR ISP (in-serial programming) programmer.  These are inexpensive and can be found many places online.  Once you have the ISP connected to the PPM encoder, simply use avrdude with the following command:</p>
 <code>avrdude -p atmega168 -P <Insert port here> -c <Insert ISP type here> -U lfuse:w:0b00100010:m -U efuse:w:0b111:m -U flash:w:servo2ppm+bootloader.hex</code>
 -----
 '''Source files'''