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1602 serial LCD black on green-yellow.
This Character LCD screen is a common display device with UART serial connection, meaning you need (beside powering the display) only 2 wires to control it.
The controller provides 7 commands to control the LCD display. Each command is composed by CMD+[Parameter]+’ ; ‘ . The [parameter] is optional but the ‘ ; ‘ is necessary.
Display commands
- Clean the Screen
- Set backlight
- Set coordinate
- Send string
- Set the cursor on/off
- Set the cursor type
- Move the cursor
After you send the command, the LCD module will return the message of execution results – ‘O’ means action complete ; ‘E’ means command error. You should send the new command after you receiving the reply message for LCD module.
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