Look like you are trying to create the same as I am.
I will have it as an external keyboard via expansion board however.
I have similar keys.
http://sinclairzxworld.com/viewtopic.php?f=7&t=1793
Search found 1922 matches
- Tue Jan 12, 2016 12:23 pm
- Forum: WANTED
- Topic: zx81 Keyboard...Sort of
- Replies: 13
- Views: 13163
- Fri Jan 08, 2016 1:19 pm
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
I've learned more a by a couple of days in the forum than the electronics for beginners books I've read.1024MAK wrote: You are learning and making good progress
/Martin
- Fri Jan 08, 2016 8:01 am
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
5V and GND only. For the rest: the thinner the better. I always choose minimum allowed (by my PCB manufacturer) thickness for all lines except power. GND normally is "the rest of the PCB" on top and bottom side as it can't be thick enough. power supply (12V, 5V, 3.3V etc) as thick as the design all...
- Fri Jan 08, 2016 7:54 am
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
http://fritzing.orgPaul wrote: Which software do you use? Maybe I could show you some beginner tricks?
/Martin
- Fri Jan 08, 2016 7:23 am
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
I'm n00b with electronics. Do you mean all lines, or e.g. 5V and GND?Paul wrote:I would like to say that all power lines should be much thicker.
kind regards Paul
/Martin
- Thu Jan 07, 2016 11:30 pm
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
Now the PCB design is complete. The board (10 cm x 5 cm) has been ordered in China. It looks quite confusing but this is my first board, and all connections have been made with autoroute. Now I need to order the ics, sockets, connectors, resistors, diodes and capacitor. Keyboard will be connected wi...
- Tue Dec 22, 2015 11:02 am
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
On the keyboard it would be nice to have keys for cursor that enables both [Shift] combined with [5], [6], [7] and [8]. As the keys have 4 pins one set can be connected to [Shift] and the other to e.g. [5]. http://img.dxcdn.com/productimages/sku_158030_4.jpg Do I need a component that delays e.g. [5...
- Mon Dec 21, 2015 10:09 pm
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
Ah! I found this componentXorA wrote:Almost certainly Resistor Network!
/Martin
- Mon Dec 21, 2015 10:02 pm
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Re: Creating Wilf Rigter's ZXKBD v3
Is that a component, or just a schematic way to show multiple resistors connected?XorA wrote:Almost certainly Resistor Network!
/Martin
- Mon Dec 21, 2015 9:51 pm
- Forum: Hardware
- Topic: Creating Wilf Rigter's ZXKBD v3
- Replies: 52
- Views: 26273
Creating Wilf Rigter's ZXKBD v3
Hi :) I found Wilf Rigter's project to build an external connected keyboard like the version from Memotech. I've found this schematic http://www.user.dccnet.com/wrigter/index_files/ZXKBDv3_files/image003.gif on this page: http://www.user.dccnet.com/wrigter/index_files/ZXKBDv3.htm Unfortunately there...