Best Seller | Lcd1602 Adapter Board IicI2c Lcm1602 Interface 5v Converter Module for 1602 LCD Features: This adapter solves problem that IO port is not enough when connecting sensor card or relay modules to control board. Original 1602 display need 7 IO port to drive while this adapter can save 5 IO port for you. It supports I2C protocols... more | | $12.99 FREE shipping go to store |