3.3V 16x2 Character LCD 1602 (Blue Screen / Backlight) + แถม Pin Header

จอ LCD 16 ตัวอักษร 2 บรรทัด ไฟเลี้ยง 3.3V

จอ LCD 1602 ขนาด 16x2 ใช้งานที่ไฟเลี้ยง 3.3V เหมาะสำหรับอุปกรณ์ MCU ที่ใช้ไฟเลี้ยง 3.3V เช่น NodeMCU , Arduino Pro mini 3.3V

• 1st foot: VSS is ground power
• 2nd foot: VDD connected to 3.3V positive power supply
• 3: V0 for the LCD contrast adjustment side, then the weakest contrast when the power supply, ground power when the highest contrast, the contrast is too high will produce "ghosting", you can use a 10K potentiometer to adjust the contrast
• Step 4: RS is the register select, select the data register at high level, select the instruction register when the low level is selected.
• 5 feet: R / W read and write signal lines, high when the read operation, low when the write operation. When RS and RW are low together, the instruction or display address can be written. When RS is low, RW is busy and the busy signal can be read. When RS is high, RW can write data.
• 6 feet: E-side to enable the end, when the E-side from high to high, the LCD module to execute the command.
• 7 ~ 14 feet: D0 ~ D7 for the 8-bit two-way data lines.
• 15 feet: backlight power positive
• 16 feet: backlight power supply negative