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Creative NachBau V02-Board Assembly Instructions Manual
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Creative NachBau V02-Board Assembly Instructions Manual

Creative NachBau V02-Board Assembly Instructions Manual

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NACHBAU Assembly Instructions
These instructions are for:
The NachBau_V02-Board was built
from:
to:
To-Do:
Author: Christian Aschof, cascho @mac.com
Version 0.4 from August 10, 2012
Translator: Hesky Fisher, hesky@wyolum.com
CC BY-NC-SA 3.0:
Attribution - Non
Commercial - Share Alike 3.0
You are free:
to copy, distribute and transmit the work
to adapt the work
With the following requirements:
Attribution - You must attribute the work in the
manner speci ed by the author or licensor (but
not in any way that suggests that they endorse
you or your use of the work).
Noncommercial - You may not use this work for
commercial purposes.
Share Alike - If you alter, transform, or build
upon this work, you may distribute the resulting
work only under the same or similar license to
this one.

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Summary of Contents for Creative NachBau V02-Board

  • Page 1 NACHBAU Assembly Instructions These instructions are for: CC BY-NC-SA 3.0: Attribution - Non Commercial - Share Alike 3.0 The NachBau_V02-Board was built You are free: from: to copy, distribute and transmit the work to adapt the work With the following requirements: Attribution - You must attribute the work in the To-Do: manner speci ed by the author or licensor (but...
  • Page 2 Forward These instructions are for the assembly of a NachBau_V02-board. The NachBau_V02 (NachBau is German for „replica“) is an LED matrix display driver. This means that one can use it to control a 16x16 LED matrix display (i.e. 256 LEDs). The LEDs are driven via multiplexing. The NachBau_V02 board also has clock support.

  • Page 3: Safety Notices

    Safety Notices The assembly of the NachBau_V02-Board is dange- Solder fumes, cleaning agents, sanding dust, glue, rous. Carpet knives, scalpels, glass edges and drill paint, etc., are almost always toxic. bits are sharp. SMD tweezers and drill bits are pointy. Snipping o the legs of components send sharp pieces of wire ying around.

  • Page 4: Version History

    Version history V 0.1 24.4.2012 Created. V 0.2 2.7.2012 Resistance values adjusted (the colors were wrong). V 0.3 11.7.2012 Page 8: Adjusted resistor values; Page 15: Clari ed empty resistor slots. V 0.4 10.8.2012 Removed color values of resistors. Links Current rmware and related les: http://code.google.com/p/grosses-bastelwochenende/ Wyolum (distributor of the board and kit):...
  • Page 5 Layout of the board Real time clock (DS1307, crystal, cattery holder for CR2032, pull up resistors) Stack-L (for larger Anode multiplexers (shift matrices) Cathode multiplexers registers, Darlington arrays, (shift registers, current ltering capacitors, terminal limiting resistors, block) terminal block) Stack-R (for larger FTDI and ISP matrices)
  • Page 6 A few words in advance... Components are usually soldered onto a circuit board in height order, shortest rst. This allows you to ip the board and have the component rest on the table with the board on top of it. Otherwise, when you ip the board for soldering, the board will rest on the taller components and the shorter ones will just fall out.
  • Page 7 Step 1: The ATMEGA328-MCU Required parts: Placing the parts: 1*ATMEGA328 1*crystal 16 MHz 1*resonator 16 MHz 2*C 22 pF 1*crystal und 2*C 22 pF 1*ATMEGA328 (make sure to align the notch!) 1*resonator Right at the start you have a tough choice to make. Do you use a 16 MHz resonator or a 16 MHz crystal with two 22 pF capacitors as the clock for the ATMEGA328-MCU? One tip: They‘re the same.
  • Page 8 Testing the ATMEGA328-MCU (preparing the power supply) In order to test the MCU we rst need power. We have two options: the FTDI connector or an external power supply. Let’s rst try the FTDI option since we’ll need some of the same parts for the external power supply. First, we’ll solder on a jumper that we can use to choose between USB and external power.
  • Page 9 Testing the ATMEGA328-MCU (power via FTDI) Required parts: Placing the parts: 1*Pinheader (6 Pins) 1*10 kOhm 1*100 nF For the FTDI connector you can use either a straight or right-angled header, whichever you prefer. The pin header and capacitor are only needed when using an FTDI cable or ISP header to program the ATMEGA328-MCU.
  • Page 10 Testing the ATMEGA328-MCU (external power supply) Required parts: Placing the parts: 1*blocking diode 2*100 nF 1*voltage regulator 2*100 µF 1*power Jack Make sure to align the voltage regulator so that its metal plate will lie on the rectangular solder plate. Face the side with writing toward the real time clock area and face the metal part toward the open source hardware logo.
  • Page 11 Step 2: The DS1307 real time clock Required parts: Placing the parts: 1*clock crystal 1*DS1307 1*100 nF 1*battery holder 2*4,7 kOhm and CR2032 battery Make sure that the notch on the DS1307 lines up with the mark on the board. As with the reset button you must add on pull down resistors (10 kOhm) to the H+, M+ and...
  • Page 12 Step 3: Prepare the DCF77 receiver Required parts: Placing the parts: 1*220 Ohm 1*3.3 volt zener diode pin header and jumper (optional) These two The zener diode and the 220 Ohm resistor make a voltage divider to produce the 3.3 volt that the pins are DCF77 receiver requires.
  • Page 13 Step 4: The anode multiplexer Required parts: Placing the parts: 2*UDN2981A Darlington arrays 1*pin header 2*74HC595 and Jumper shift registers 4*100 nF This resistor (4.7 kOhm) must be soldered on before the rst test of Just like all the other chips, make sure to line up the notch on the chip with the mark on the board. The 74HC595 the matrix.
  • Page 14 Step 5: The cathode multiplexer Required parts: Placing the parts: 16*6,8 Ohm or short links 2*74HC595 2*100 nF shift registers Make sure to line up the notch on the 74HC595 shift registers with the mark on the board. Here you have another tough decision. Many hobbyists drive their matrix without resistors. At rst this seems odd. We all know that LEDs need resistors. However, the Darlington arrays have resistors so these may be enough and there have yet to be reports of LEDs burning out.

  • Page 15: Final Touches

    Final touches The rst column of the prototyping area is attached to Vcc and the second You can burn a bootloader These resistor slots to ground. The other holes are onto the ATMEGA328-MCU remain empty. connected to each other in rows of using the ISP header .
  • Page 16 Connection to the matrix Cathodes pins (columns) are numbered from right to left: Anode pins (rows) are numbered from left to right: The pairs of pins are all connected in tupels (e.g. for corner LEDs) CONGRATULATIONS!