- ✔️ Display has 4 rows with 20 characters each in white text on a blue backlight
- ✔️ It has a HD44780 driver chip which the micro-controller communicates with to control the screen.
- ✔️ The module is a low-power consumption LCD Module with a built-in controller, its LED back-light enables viewing in dim lighting conditions.
- ✔️ To control the screen, one of the two parallel modes can be used, 8-bit or 4-bit mode.
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This 20x4 module LCD with an integrated controller HD44780 allows the representation of 20x4 sign in white font on blue reason. The control of the display occurs, for example, about an Arduino, Raspberry Pi, or similar the connection of the display can occur directly to the ports GPIO of the e.g. Arduinos.
The allocation of 16 contacts looks as follows:
VSS: GND (mass
VDD: 5 V of care tension
V0: Contrast tension, this can lie between 0 V and 5 V
RS: Register, choice 0:Befehlsregister, 1: Data register
R/W: 1:Read / 0:Write contacts
E: Enable
D0: Data line
D1: Data line
D2: Data line
D3: Data line
D4: Data line
D5: Data line
D6: Data line
D7: Data line
A: Anode of the background lighting
K: Cathode of the background lighting
The allocation of 16 contacts looks as follows:
VSS: GND (mass
VDD: 5 V of care tension
V0: Contrast tension, this can lie between 0 V and 5 V
RS: Register, choice 0:Befehlsregister, 1: Data register
R/W: 1:Read / 0:Write contacts
E: Enable
D0: Data line
D1: Data line
D2: Data line
D3: Data line
D4: Data line
D5: Data line
D6: Data line
D7: Data line
A: Anode of the background lighting
K: Cathode of the background lighting
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