Warning: when the host sends the brightness value to the display, be aware that high
power supply can damage the light driver or the background LED-s if a high brightness
value has been set.
The byte of the
Display light intensity
allows to set the duty cycle of the driver of the light brightness (
Pulse Width
Modulation
).
When the display is connected to the coin selector, the intensity of its background light will then be stored into the
coin selector NV memory (
FLASH
), and it will remain stable even if power supply is changed.
The
Accumulated credit
byte represents the amount of the accumulated credit for the coin selectors that are
programmed for releasing the credit signal only after the “Request” command has been activated.
The
Accumulated value
can be the coin value inserted in the coin selector, or the credit value remaining after the
credit impulse has been activated, or the remaining time after the timer count-down has been activated. The
accumulated value will be displayed according to the multiplier and decimal position code!
The
Time
is displayed in format: 'mm : ss'. The coin selector will refresh the display every second as long as the
timer output is active.
The
Display warnings
can show the status of the coin selector or other warnings. Warnings and relevant codes are
shown in table 4.
Any other code sent will produce no result on the display, so this one will be blank.
7.3 Display message
The Host can send commands to show any text on a 16x2 digits display. The following command
strings must be used:
[ 0xC1 ]
[ number of bytes ] [ Character address ] [ Data 1 ]
[ Data 2 ]
……
[ Data n ]
First byte
0xC1
string means the type of message. The Hex code 0xC1 is for general message.
The second byte means the amount of
data bytes (n)
in the message, including the address (n+1).
The third byte corresponds to the character address: it starts by 0x00 for the beginning of the first digit on first line
(top), and finishes by 0x1F for the last digit on second line (bottom). T
he second line begins by address 0x10.
The bytes that follow share the same structure of the character codes of the Display table (Table 4).
Summary of Contents for AL66 FG ARM
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