DFR0468

      FireBeetle Covers‐24×8 LED Matrix (Green)  SKU: DFR0468  Introduction FireBeetle Covers-24×8 LED Matrix DFRobot FireBeetle is a low-power consumption micro-controller intentionally designed for Internet of Things (IoT). This series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories. This 24×8 LED Matrix display is special designed for FireBeetle series. It supports low-power consumption mode and scrolling display. With HT1632C high performance LED driver chip, every led has independent register, which makes it easy to drive separately. It integrates a 256KHz RC clock, only 5uA under low-power mode, support 16 scale PWM brightness adjustment. This product also works with the other Arduino micrcontroller like Arduino UNO. Specification               Operating Voltage: 3.3~5V LED Color: Single color (White/Blue/Yellow/Red/Green) Drive Chip: HT1632C Working Current: 6~100mA Low-power Consumption: 5uA RC clock: 256KHz Chip Select (CS): D2, D3, D4, D5 selectable Serial Data Communication Support Arduino Library Support Scrolling display Interface mode: FireBeetle Series Compatible Operating Temperature: -10 ~+85 Dimension: 24 × 58(mm)/0.94 x 2.28(inches) Weight: 26g FireBeetle Covers-24×8 LED Matrix Chip Select Note: FireBeetle Covers-24x8 LED Matrix has 4 CS pin, you can select the CS from the dialing switch, and one FireBeetle can control 4 LED matrix at the same time. Board Overview Num Label Description 1 DATA DATAD6 2 WR WRD7 (Generally Not Used) 3 CS CSD2, D3, D4, D5 selectable 4 RD RDD8 5 VCC 5VUSB; 3.7VLipo Battery FireBeetle Covers-24×8 LED Matrix Tutorial In this section,we will demonstrate several example about how to use this LED matrix. Requirements  Hardware FireBeetle Board - ESP32 x 1 FireBeetle Covers-24×8 LED Matrix x1  Software Arduino IDE Click to Download Arduino IDE from Arduino® https://www.arduino.cc/en/Main/Software%7C Arduino Library (Github) https://github.com/Chocho2017/FireBeetleLEDMatrix.git Sample Code: Hello Note: You need use D(x) to call digital I/O pins under Arduino IDE. Or that will be IO(x). CS = D2 #include "DFRobot_HT1632C.h" #define DATA D6 #define CS D2 #define WR D7 //#define RD 7 DFRobot_HT1632C ht1632c = DFRobot_HT1632C(DATA, WR,CS); char str[] = "Hello"; void setup() { // put your setup code here, to run once: ht1632c.begin(); ht1632c.isLedOn(true); ht1632c.clearScreen(); ht1632c.setCursor(0,0); ht1632c.print(str); } void loop() { // put your main code here, to run repeatedly: } Sample Code: Draw Point You can draw points at any place of the Matrix. X-Y axis coordinate diagram: FireBeetle Covers-24×8 LED Matrix X-Y Axis Coordinate Diagram setPixel(x,y)：Set coordinates writeScreen()：Draw points Sample Code: ht1632c.setPixel(0,0); writeScreen(); Sample Code: Srolling Display You can use ‘’‘setPixel’‘’ to set the start point, and print str with ms srolling display. print(str,ms): // str = string; ms = delay time Smaple code: #include "DFRobot_HT1632C.h" #define DATA D6 #define CS D2 #define WR D7 DFRobot_HT1632C ht1632c = DFRobot_HT1632C(DATA, WR,CS); char str[] = " DFROBOT 2017"; void setup() { Serial.begin(115200); // put your setup code here, to run once: ht1632c.begin(); ht1632c.isLedOn(true); ht1632c.clearScreen(); delay(500); } void loop() { // put your main code here, to run repeatedly: ht1632c.print(str,50); //delay(100); } Additional Instruction FireBeetle Covers-24×8 LED Matrix support Low-power consumption mode, you can use inLowpower function to enter Low-power consumption mode. When it is in Low-power consumption mode, it will close RC clock automatically. Dimension FireBeetle Covers-24×8 LED Matrix Dimension https://www.dfrobot.com/wiki/index.php/FireBeetle_Covers-24%C3%978_LED_Matrix_(Green)_SKU:_DFR0468 7-7-17