Hardware Reference
In-Depth Information
output_up_ms
The limit switch in lower limit of Gate output
output_down_ms The limit switch in upper limit of gate output
Output symbols
The motor which is responsible to lift up the arm gate at en-
trance of the parking
input_motor_up
The motor which is responsible to lift down the arm gate at en-
trance of the parking
input_motor_down
The motor which is responsible to lift up the arm gate at exit of
the parking
output_motor_up
The motor which is responsible to lift down the arm gate at exit
of the parking
output_motor_down
SS_PIN
Slave select pin to have SPI connection with RFID
RST_PIN
Reset pin to have SPI connection with RFID
r_led
To turn the red LED on
g_led
To turn the green LED on
disp1 - disp8
for controlling two7segments
Buzzer
Make sound for valid or invalid card
alarm_r
Red LED for invalid card
alarm_g
Green LED for valid card
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