LittlePrinter - Versionsgeschichte

HKay: add some info about the interior of the printer itself

2016-01-24T17:55:21Z

add some info about the interior of the printer itself

← Nächstältere Version		Version vom 24. Januar 2016, 19:55 Uhr
Zeile 122:		Zeile 122:
	# rm ~/.ssh/authorized_keys		# rm ~/.ssh/authorized_keys
	</pre>		</pre>

			= The Printer =
			The printer converts the pre-formatted text and prints it onto regular receipt paper.
			It also has basic software that enables it to print troubleshooting messages along with faces.

			== Hardware ==
			[[Datei:Little_printer_printer_v21.2_top.jpeg\|200px\|thumb\|left\|top of printer v21.2 PCB]]
			[[Datei:Little_printer_printer_v21.2_bot.jpeg\|200px\|thumb\|right\|bottom of printer v21.2 PCB]]
			[[Datei:Little_printer_printer.jpeg\|200px\|thumb\|center\|mechanical components of the printer]]
			The long FFC connector X1(label hidden) at the top leads to the printer mechanics.
			right below it is the stepper driver IC "BA6845FS".
			All the other connectors on the topside are for debugging and therefore not populated.
			The microcontroller is a Freescale "MC68HC908GP32". Pin 1 is marked by a little dot on the pcb.

HKay: organise layout

2016-01-23T18:30:47Z

organise layout

← Nächstältere Version		Version vom 23. Januar 2016, 20:30 Uhr
Zeile 1:		Zeile 1:
	= BERG =		= BERG =

			{\| align="center" border="0"
			\|

	[[Datei:Little_printer.jpeg\|200px\|thumb\|right\|The Little Printer by BERG]]		[[Datei:Little_printer.jpeg\|200px\|thumb\|right\|The Little Printer by BERG]]
	A few years ago a design company from London called "berg" introduced the Little Printer. The device basically is a small printer that prints various feeds provided by berg on a daily basis. Feeds like twitter, newspaper articles, trivia and sudoku. For that it uses regular receipt paper. ([https://www.youtube.com/watch?v=B_bytm9_P4w promo video])		A few years ago a design company from London called "berg" introduced the Little Printer. The device basically is a small printer that prints various feeds provided by berg on a daily basis. Feeds like twitter, newspaper articles, trivia and sudoku. For that it uses regular receipt paper. ([https://www.youtube.com/watch?v=B_bytm9_P4w promo video])
Zeile 5:		Zeile 9:
	The pricetag was 250 Euros.		The pricetag was 250 Euros.

	In 2015 the company went into hibernation but kept the servers running for the rest of the year. Now, in January 2016 the devices are practically useless without the backend servers. I got mine dirt cheap on ebay. [[Benutzer:HKay\|HKay]] ~~([[Benutzer Diskussion:HKay\|Diskussion]])~~		In 2015 the company went into hibernation but kept the servers running for the rest of the year. Now, in January 2016 the devices are practically useless without the backend servers. I got mine dirt cheap on ebay. [[Benutzer:HKay\|HKay]]

			\|-
			\|

	= The Bridge =		= The Bridge =
	[[Datei:Little_printer_bridge.jpeg\|200px\|thumb\|right\|The Little Printer bridge by BERG]]		[[Datei:Little_printer_bridge.jpeg\|200px\|thumb\|right\|The Little Printer bridge by BERG]]
	The printer does not talk to the internet directly. That's what the extra box called "bridge" is for. It has a RJ45 connector for Ethernet and a ZigBee module.		The printer does not talk to the internet directly. That's what the extra box called "bridge" is for. It has a RJ45 connector for Ethernet and a ZigBee module.

			\|-
			\|

	== Hardware ==		== Hardware ==
Zeile 31:		Zeile 41:
	The rest is voltage regulation and logic		The rest is voltage regulation and logic
	To connect to the board via a serial link I used the "SparkFun FTDI Basic Breakout". The RX,TX and ground pins are indicated in the picture above. Connect "RX"(receive pin) to the "TX"(transmit) pin on the FTDI board and the other way around. Also connect GND to GND. Make sure you have the 3.3V version as the 5V version would likely fry the board.		To connect to the board via a serial link I used the "SparkFun FTDI Basic Breakout". The RX,TX and ground pins are indicated in the picture above. Connect "RX"(receive pin) to the "TX"(transmit) pin on the FTDI board and the other way around. Also connect GND to GND. Make sure you have the 3.3V version as the 5V version would likely fry the board.
			\|}

	== Software ==		== Software ==

HKay: Intstructions on how to delete the original ssh key the buildbot left behind

2016-01-17T03:42:26Z

Intstructions on how to delete the original ssh key the buildbot left behind

← Nächstältere Version		Version vom 17. Januar 2016, 05:42 Uhr
Zeile 109:		Zeile 109:

	<pre>		<pre>
	# ~~cat~~ ~/.ssh/authorized_keys		# rm ~/.ssh/authorized_keys
	ssh-dss AAAAB3NzaC1kc3MAAACBAMzncdooGGcsy7Ga1Yt2OGzCfPWo1OWlzu9ocIncLXo4r7zzqX09EqB77z3esEG4u8NEkpXWJDMH4HnuEXrG8c/NNMxCKcpe6MxVwHFEkNLMZZaXLOiPgyA1dR4rbDSFoaJnqj+YZaGHnYemHVuldG6COILkJFLhW0/4vVpuoXmNAAAAFQDKyKzuZkCEjiCUNDubWO7B5G/q3QAAAIAIVPe/b64rUhAErgqtfOm/EFiaGs+XAVqla8e5BYQAQ7uLg6NoBJZG4d+y4DHwAQuxT8pYeom94XHH8W+yanD+5wV9a1pMAqMm9zzBMZzeqUDQuzJTcQ6azJCsWc6NXLHqfbLe9tPkLz0rBAhC/XOf8STgtTb0yz3xSQI1dKp/XwAAAIEAuhbVx2cSD10EMr48/1iAUYaqvOKO8uITrIxKRE93QjEq2DNZ3WilW/4SGTnxcAOVT18mtE5WqnRPR0rmy+gETWQoD2EmZD0T7GQcrMcrChgJKZoJVxovvBXwtujjSD8hMJU3Rv0mYbqtjAxfbemAb//Pvdv2jm2j9T+0Kr56PrU= nick@buildbot
	</pre>		</pre>

HKay: Add pictures of the Little Printer itself

2016-01-17T03:38:45Z

Add pictures of the Little Printer itself

← Nächstältere Version		Version vom 17. Januar 2016, 05:38 Uhr
Zeile 1:		Zeile 1:
			= BERG =
	== Little Printer ==
			[[Datei:Little_printer.jpeg\|200px\|thumb\|right\|The Little Printer by BERG]]
	A few years ago a design company from London called "berg" introduced the Little Printer. The device basically is a small printer that prints various feeds provided by berg on a daily basis. Feeds like twitter, newspaper articles, trivia and sudoku. For that it uses regular receipt paper. ([https://www.youtube.com/watch?v=B_bytm9_P4w promo video])		A few years ago a design company from London called "berg" introduced the Little Printer. The device basically is a small printer that prints various feeds provided by berg on a daily basis. Feeds like twitter, newspaper articles, trivia and sudoku. For that it uses regular receipt paper. ([https://www.youtube.com/watch?v=B_bytm9_P4w promo video])

Zeile 6:		Zeile 7:
	In 2015 the company went into hibernation but kept the servers running for the rest of the year. Now, in January 2016 the devices are practically useless without the backend servers. I got mine dirt cheap on ebay. [[Benutzer:HKay\|HKay]] ([[Benutzer Diskussion:HKay\|Diskussion]])		In 2015 the company went into hibernation but kept the servers running for the rest of the year. Now, in January 2016 the devices are practically useless without the backend servers. I got mine dirt cheap on ebay. [[Benutzer:HKay\|HKay]] ([[Benutzer Diskussion:HKay\|Diskussion]])

		⚫	= The Bridge =

			[[Datei:Little_printer_bridge.jpeg\|200px\|thumb\|right\|The Little Printer bridge by BERG]]
⚫	== The Bridge ==
	The printer does not talk to the internet directly. That's what the extra box called "bridge" is for. It has a RJ45 connector for Ethernet and a ZigBee module.		The printer does not talk to the internet directly. That's what the extra box called "bridge" is for. It has a RJ45 connector for Ethernet and a ZigBee module.

	=== Hardware ===		== Hardware ==

	[[Datei:Little_printer_bridge_v1.4_top.jpeg\|200px\|thumb\|right\|top of bridge v1.4 PCB]]		[[Datei:Little_printer_bridge_v1.4_top.jpeg\|200px\|thumb\|right\|top of bridge v1.4 PCB]]
	[[Datei:Little_printer_bridge_v1.4_bot.jpeg\|200px\|thumb\|left\|top of bridge v1.4 PCB]]		[[Datei:Little_printer_bridge_v1.4_bot.jpeg\|200px\|thumb\|left\|top of bridge v1.4 PCB]]
Zeile 32:		Zeile 32:
	To connect to the board via a serial link I used the "SparkFun FTDI Basic Breakout". The RX,TX and ground pins are indicated in the picture above. Connect "RX"(receive pin) to the "TX"(transmit) pin on the FTDI board and the other way around. Also connect GND to GND. Make sure you have the 3.3V version as the 5V version would likely fry the board.		To connect to the board via a serial link I used the "SparkFun FTDI Basic Breakout". The RX,TX and ground pins are indicated in the picture above. Connect "RX"(receive pin) to the "TX"(transmit) pin on the FTDI board and the other way around. Also connect GND to GND. Make sure you have the 3.3V version as the 5V version would likely fry the board.

	=== Software ===		== Software ==
	Here is the boot chatter of the bridge.		Here is the boot chatter of the bridge.
	The system is a AT91SAM9G20 at a clockspeed of 396 MHz running Linux with a kernel version of 2.6.36.4 in April of 2013		The system is a AT91SAM9G20 at a clockspeed of 396 MHz running Linux with a kernel version of 2.6.36.4 in April of 2013

HKay: Info on how to connect the FTDI board.

2016-01-17T01:46:54Z

Info on how to connect the FTDI board.

← Nächstältere Version		Version vom 17. Januar 2016, 03:46 Uhr
Zeile 30:		Zeile 30:

	The rest is voltage regulation and logic		The rest is voltage regulation and logic
			To connect to the board via a serial link I used the "SparkFun FTDI Basic Breakout". The RX,TX and ground pins are indicated in the picture above. Connect "RX"(receive pin) to the "TX"(transmit) pin on the FTDI board and the other way around. Also connect GND to GND. Make sure you have the 3.3V version as the 5V version would likely fry the board.


	=== Software ===		=== Software ===

HKay: Add "U-Boot>" string to indicate commands and prompt feedback of uboot

2016-01-17T01:30:19Z

Add "U-Boot>" string to indicate commands and prompt feedback of uboot

← Nächstältere Version		Version vom 17. Januar 2016, 03:30 Uhr
Zeile 52:		Zeile 52:
	Now we just append init=/bin/sh to the end of the boot arguments. And continue booting.		Now we just append init=/bin/sh to the end of the boot arguments. And continue booting.
	<pre>		<pre>
	setenv bootargs console=ttyS0,115200 root=/dev/mtdblock6 mtdparts=atmel_nand:128k(bootstrap)ro,256k(uboot)ro,128k(env1),128k(env2),2M(linux),16M(config),-(root) rw rootfstype=jffs2 init=/bin/sh		U-Boot> setenv bootargs console=ttyS0,115200 root=/dev/mtdblock6 mtdparts=atmel_nand:128k(bootstrap)ro,256k(uboot)ro,128k(env1),128k(env2),2M(linux),16M(config),-(root) rw rootfstype=jffs2 init=/bin/sh
		⚫	U-Boot> run bootcmd

⚫	run bootcmd
	</pre>		</pre>

HKay: add pictures and chip names

2016-01-17T01:21:22Z

add pictures and chip names

← Nächstältere Version		Version vom 17. Januar 2016, 03:21 Uhr
Zeile 12:		Zeile 12:
	=== Hardware ===		=== Hardware ===

			[[Datei:Little_printer_bridge_v1.4_top.jpeg\|200px\|thumb\|right\|top of bridge v1.4 PCB]]
	'''TODO ADD PHOTOS OF THE BOARD'''
			[[Datei:Little_printer_bridge_v1.4_bot.jpeg\|200px\|thumb\|left\|top of bridge v1.4 PCB]]

	Right from the start the board offers several unpopulated pinheaders for JTAG and SERIAL. A quick check with the Oscilloscope reveals the pinout. And a logic analyser tells us the required baud settings. Baudrate: 115200 8N1 of course no hardware flow control. The voltage levels are 3.3 volts.		Right from the start the board offers several unpopulated pinheaders for JTAG and SERIAL. A quick check with the Oscilloscope reveals the pinout. And a logic analyser tells us the required baud settings. Baudrate: 115200 8N1 of course no hardware flow control. The voltage levels are 3.3 volts.

	The core of the board is a '''ATMEL AT91SAM9620'''.
			The board contains the following ICs

			RAM: 48LC16M16A2 - 256 Mbit

			FLASH: 29F2G08ABAEA - 2Gb 16bit blocks

			CPU: ATMEL AT91SAM9620

			Ethernet tranceiver: KSZ8041NL

			ZigBee Module: ETRX357

			The rest is voltage regulation and logic


Zeile 21:		Zeile 35:
	Here is the boot chatter of the bridge.		Here is the boot chatter of the bridge.
	The system is a AT91SAM9G20 at a clockspeed of 396 MHz running Linux with a kernel version of 2.6.36.4 in April of 2013		The system is a AT91SAM9G20 at a clockspeed of 396 MHz running Linux with a kernel version of 2.6.36.4 in April of 2013
	It has 32 ~~Megs~~ of RAM and 256 MiB of Flash (far ~~more~~ than ~~required~~).		It has access to 32 MB of RAM and 256 MiB of Flash (far less than is availible but still great for the purpose).
	The boot process finishes in a login prompt.		The boot process finishes in a login prompt.
	The obvious passwords default passwords don't work.		The obvious passwords default passwords don't work.

HKay: Explain how to gain access to the bridge via SSH

2016-01-16T23:55:40Z

Explain how to gain access to the bridge via SSH

@@ Zeile 9: / Zeile 9: @@
 == The Bridge ==
 The printer does not talk to the internet directly. That's what the extra box called "bridge" is for. It has a RJ45 connector for Ethernet and a ZigBee module.
 '''TODO ADD PHOTOS OF THE BOARD'''
-Right from the start the board offers several unpopulated pinheaders for JTAG and SERIAL. A quick check with the Oscilloscope reveals the pinout. And a logic analyser tells us the required baud settings. Baudrate: 115200 8N1 of course no hardware flow control.
+Right from the start the board offers several unpopulated pinheaders for JTAG and SERIAL. A quick check with the Oscilloscope reveals the pinout. And a logic analyser tells us the required baud settings. Baudrate: 115200 8N1 of course no hardware flow control. The voltage levels are 3.3 volts.
 The core of the board is a '''ATMEL AT91SAM9620'''.

HKay: Some draft

2016-01-16T21:24:57Z

Some draft

Neue Seite

== Little Printer ==
A few years ago a design company from London called "berg" introduced the Little Printer. The device basically is a small printer that prints various feeds provided by berg on a daily basis. Feeds like twitter, newspaper articles, trivia and sudoku. For that it uses regular receipt paper. ([https://www.youtube.com/watch?v=B_bytm9_P4w promo video])

The pricetag was 250 Euros.

In 2015 the company went into hibernation but kept the servers running for the rest of the year. Now, in January 2016 the devices are practically useless without the backend servers. I got mine dirt cheap on ebay. [[Benutzer:HKay|HKay]] ([[Benutzer Diskussion:HKay|Diskussion]])

== The Bridge ==
The printer does not talk to the internet directly. That's what the extra box called "bridge" is for. It has a RJ45 connector for Ethernet and a ZigBee module.

'''TODO ADD PHOTOS OF THE BOARD'''

Right from the start the board offers several unpopulated pinheaders for JTAG and SERIAL. A quick check with the Oscilloscope reveals the pinout. And a logic analyser tells us the required baud settings. Baudrate: 115200 8N1 of course no hardware flow control.

The core of the board is a '''ATMEL AT91SAM9620'''.