The article concerns designs on publications on Habré , and after and my site
Written based on the results of some unsuccessful attempts to repeat the scheme.
In addition, it is recommended that arduino.ru users who read that
"This circuit is inoperative in principle."
To begin with, the system was created as structurally as simple as possible, and it turned out as such.
- "1K ZX Chess"( ), ?
, ( , 1K ZX Chess ):
, .
- .
, , ( ) (RTC, STEP-UP/DOWN) 5.
.
, ( GL5528 2):
, — Atmega328, (INPUT_PULLUP).
, , ZX Chess !
, — "" , - , .
10- :
for ( word m = 0; m <= 60000 ; m++) { delayMicroseconds(10000);
, 38 ?
— , — , — , .
— , , — .
— , — , — .
, "INITIAL BOOT OK" .
, GSM- .
, "" :
, ( ) , .
, — 2200, 16 — , GSM-.
( ) , GND VCC ( )
2.7 ( ).
( Turn1, Turn2, Turn3 ...)
(PULLUP) .
, .
pinMode(2, INPUT_PULLUP); pinMode(2, INPUT);
PULLUP .
20 VCC arduino ( , .)
, :
, .
!
.
P.S. "" 35 , .