Can this little screen be Arduino compatible?

Other Hardware Displays
1

Can anyone identify this no name timer and say if the screen can be used with a Mega or Uno?

photos_écran-minutérie
photos_écran-minutérie771×510 72.6 KB

2

Post the dimensions of the screen. If you do not mind destroying it, the IC under the black blob is the driver, and maybe has an identifying number on it to search for a datasheet.

3

Almost certainly not. LCD screens require a driver (the screens are AC driven, not DC), and you won't be able to reuse the driver under the black blob.

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4

Doesn't really matter, just an anti trash idea, thanks.

5

To drive a LCd you usually need a driver chip (e.g. HT1621). This seems to be embedded under the back blob.

In this case I would have some fun figuring out how fast a LCD gets damaged while trying to drive it directly from an Arduino.

I would connect every pin of the LCD to the Arduino like this:
divider

Deselected pins would have pinMode(x, INPUT)

In the first cycle selected pins would be like
Column: pinMode(x, OUTPUT); digitalWrite(x, LOW)
Row: pinMode(x, OUTPUT); digitalWrite(x, HIGH)

in the second cycle:
Column: pinMode(x, OUTPUT); digitalWrite(x, HIGH)
Row: pinMode(x, OUTPUT); digitalWrite(x, LOW)

6

Suggest you concentrate your efforts in something tried and true.

7

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