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LittlePrinter (Quelltext anzeigen)

Version vom 24. Januar 2016, 17:55 Uhr

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add some info about the interior of the printer itself

HKay

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Version vom 17. Januar 2016, 03:38 Uhr (Quelltext anzeigen) HKay (Diskussion \| Beiträge) (Add pictures of the Little Printer itself) ← Zum vorherigen Versionsunterschied		Aktuelle Version vom 24. Januar 2016, 17:55 Uhr (Quelltext anzeigen) HKay (Diskussion \| Beiträge) (add some info about the interior of the printer itself)
(2 dazwischenliegende Versionen desselben Benutzers werden nicht angezeigt)
= BERG = {\| align="center" border="0" \| [[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]) 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 = [[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. \|- \| == Hardware == 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 == <pre> # ~~cat~~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> = 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.