GN1621 Broken Code LCD Experiment Module#

 ##### **PCB front photo preview** ![T2.png] ### PCB back photo preview! [B2.png] ### Photos of actual welding! [1.jpg] ![111.png] ### Photos of connection with Arduino UNO. The code in the routine is as follows: CS aligns with the first 0 number on the right side of the UNO board. Just plug in the pins. ![0.jpg] ![3.jpg] ## [Click full screen to watch the demo of adding third-party library download routine](https://image.lceda.cn/pullimage/hc1tDC7wEAnzdxcOskCPvqFosjL5rq5i1aKbr8RO.gif) ![Add zip library download Routine demonstration.gif] The Arduino GN1621 driver library can be downloaded in the attachment column below as the GN1621.zip file```` API reference: void begin(int cs_p, int wr_p, int data_p); // Initialize the module and set up the UNO docking module #CS , #WR ,DATA pin number. void clear(void); // Clear the screen. void print(int num); // Display numbers. Do not retain high-order 0, such as 0000, only display 0 void print(int num, int flg); // Display numbers plus symbols, pass in flg 3 to display three dots, 2 to display colons, 1 to display colons and three dots // If you need to retain the high bit 0, add 0 to the incoming parameter of flg to become 30, 20, 10 // For example, lcd.print(1,20); displays 00:01. You can also use lcd.print(0001,20); The functionality is the same. // If you only need to keep the high-order 0 without displaying the three-dot sum or colon, use lcd.print(1,40); to display 0001 void print(float num); // Display floating point numbers and automatically select the number of decimal points . void display(void); // Turn on display characters. void noDisplay(void); // Turn off character display. void tone(bool STA); //Control the module buzzer. Pass in true to STA to turn on the buzzer to sound, pass in false to turn off the buzzer and make no sound. ```