Skip to main content

How to build the circuit boards.

And now on to construction.

For the Nano Circuit board you will need the following

Veroboard (I used a piece 13 holes by 19).
32 DIL Wide Socket.
28 Male Pin Headers.
Jumper wire.

Cut the jumper pins to the following

3 x 1 Pin
2 x 2 Pins
2 x 4 Pins
1 x 6 Pins
1 x 7 pins

Make sure the copper strips on the veroboard are vertical and on the underside of the board.














Top view of the Nano Board.

 When you have soldered all the components flip the board over and remove the copper strips where indicated. Be very careful not to cut yourself.











Underside  view of the Nano Board

When completed it should look something like this.












Now on to the Audio filter. You will need the following.

Veroboard (I used a piece 9 holes by 15)
4 x 4.7k resistors.
3 x 4.7nF Capacitors
1 x 100nF Capacitor
3 x Male Pin headers.

Cut your male pin header into single pins.



C1, C2, and C3 are the 4.7nF Capacitors
C4 is the 100nF Capacitor.



Top view of Audio Filter Board.

Now flip the board over and cut the copper as indicated.











Bottom View of the Audio Filter Board

The final assembled board should look like this (minus the wires attached to the pins).













In the next blog we will build the Button board and then assemble all the componants.


Comments

Popular posts from this blog

TZXDuino 1.7

TZXDuino 1.7
This fixes issues with pause lengths that we never noticed before. It should fix games like Top Gun and Street Hawk for the Spectrum and make CDT files behave as they should for the Amstrad CPC.Changes.
*Maximum pause length of 8.3 seconds due to the TimerOne library has been worked around.
*ID20 Pause Block fixed.
*Temporary fix for pause after motor control removed.https://mega.nz/#!aEt1VJKZ!ZFw-fP3bkNTtiPlbG_IllmR94Xni3KvIGUn6Jggfof8

New Firmwares With New Features

Thanks to the help of Rafael Molina Chasserot some new features have been added to the TZXDuino and CASDuino firmwares which has freed up some memory as well, which may lead to more features being added in the future.
A percentage counter and a timer counter have been added to all screens so that you know how much is left of a file to play and how long it has taken to load.
The OLED1306 and PCD8544 use completely new routines for the firmwares saving a lot of memory.
Folder navigation is now different. Rather than using the Menu button on TZXDuino or the Stop button on CASDuino to return to the ROOT directory, if you press the stop button when no file is playing you will go up one folder only making it easier to navigate.

TZXDuino
The TZXDuino has had a menu added so that MSX users can set the Baud rate of TSX files so that they can load faster than normal.
A few more emulator only IDs have been fixed so that they are skipped by TZXDuino.

CASDuino
CASduino has had a Baud Rate of 3675 added to…

Latest Firmwares

Whilst it may seem there han't been much going on in recent months we have been working behind the scenes on improving and adding more options to the various firmwares and trying to improve the hardware.

The main difference with these firmwares is that OLED 1306 screens are now fully working on all of them and that the PCD8544 has added as a screen option.
I will go into the hardware changes needed for that at a later date.

ArduiTape 1.5
What's New
Added support for the PCD7544.

Download from here.

CASDuino 1.15
What's New
Improved support for CoCo and Dragon
Added support for OLED1306 and PCD8544.

Download from here.

TZXDuino 1.8
What's New
Added ID2A
Added support for PCD8544

Download from here.

TZXDuino 1.8.1
What's New
TSX support for MSX TSX files added by Natalia Pujol. Not officially supported and any bugs should be reported to her.

Download from here.