H A R D I I
(C) FOF
Kempston joystick interface.
Offer readers ZX-Pilot'a short article o kempston joystick'e
and slightly about kempston mouse. For those who have it do not
give a scheme that is present on my Pentagon'e 128.
KR555AP3
R1-R5 2.2k
D7 February 18 ■ +5 V
D6 April 16
D5 June 14
D4 August 12
1 ■ Kempston
D3 September 1911 ■ ■ Fire
D2 July 13 ■ ■ Up
D1 May 15 ■ ■ Down
D0 March 1917 ■ ■ Left
19 ■ ■ ■ Right
A5 VD1> ■ Gnd
RD VD2> <VD3 ■ +5 V
VD-KD522 R6 1k
■ Gnd
With regard to the compatibility of mouse and kempston, then
I went to a simpler way I introduced the switch into the mains
kempston 'A. Now when I need a mouse, turn off
food joystick'a and vice versa, when he
needed vlyuchayu his food.
AutoFire in kempston joystick'e.
For those game'rov who lacks turbo
-Fire, offer small shemku, taken
Journal of the Radio # 3 for 2000, with slight modifications.
It can be used and for sinclair joystick'a.
to 7 DD1 VD1-4 KD 522A
- ■
6
DD1-KR561LA7 VT1-KT315
1 - Down
2 - Left
3 - Right
4 - Up
5 - Fire
6 - Gnd
Instead KP561LA7 suited chip
KP555-1533LA3, you will need to pick up ratings of the
capacitor and resistors.
Now, a little announcement. In the next issue of the
ZX-Pilot'a We talk about the pulse power sources, about their
pros and cons.
If anyone has a new and not so new
development for the Spectrum-compatible computer that can send
them to the editorial office ZXPilot'a. Do not forget that your
activity on the survival of our beloved Speccy. Harder'y,
remember that thanks openness and development of software
ZX-Spectrum survived, and hopefully more long to live.
Contributes to the development of Spectrum!
We'll be waiting for your response.
07.2000
