1. Arduino Modules
Ready Modules

2. RS232 Interface
GSM/GPRS interface
GPS interface
Thermal Printer

3. Digital Interface
DTMF decoder
Seven digits+20 keys
Four Relays
Four Optos (DC and AC Sensing)
On Screen Display (10 Lines X 24 Chars)

4. Interface Converters
TTL to RS232 Interface
TTL to RS485 interface
RS232 to RS485 interface

5. RS485 Interface
DMX512 Slave
Two digit 5X7 graphics display
Seven Digit numeric display
Four Digit numeric + 32 LEDs
Dual Color Three Digit Numeric Display

6. Boards
RS232/RS485 + AN LCD + RTC + MEM+
3 SWITCHES + 1 OPTO MOS OUTPUT + 1
LED
RS485 + 6 PWM + 3 DIGIT NUMERIC
DISPLAY + 3 SWITCHES