{"product_id":"max7219-7-segment-led-dot-matrix-8-digit-digital-tube-display-control-module-3-3v-5v-microcontroller-serial-driver-diygba","title":"MAX7219 7-segment LED Dot Matrix 8 Digit Digital Tube Display Control Module 3.3V 5V Microcontroller Serial Driver DIYGBA","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eIGMOPNRQ\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eInternational standard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eInternational standard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e3.3v-5v\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLogic ICs\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"color:rgb(255, 0, 0);font-size:26px;font-family:Arial;\"\u003e\u003cstrong\u003eGreen Board:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eMAX7219 is an integrated serial input \/ output common-cathode display drivers, which connects the microprocessor and 8 digit 7-segment digital LED display, you can also connect a bar graph display or 64 separate LED. Includes an on-chip type B BCD encoders, multi-channel scanning loop, segment word driver, but also a 8x8 static RAM that stores each data. Only one external register is used to set the current of each LED segment.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eA convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update without rewriting all displays. MAX7219 also allows the user to select each data encoding or no coding.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eThe entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display 1-8 bit data, there is an all LED light detection mode.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eOnly need three IO ports can drive eight digital tube!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003ePCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003e0.36 inch and four digital tube one common cathode LED\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eThe module compatible of 5v\/3.3v microcontroller(51\/AVR\/STM32...)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eWiring instructions (a program, for example, you can pick any IO port definition can be modified in the program):\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eVCC→5V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eGND→GND\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eDIN →P00\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eCS →P01\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style='font-family:\"white-space:normal;word-spacing:0px;text-transform:none;font-weight:400;color:#222222;outline-width:0px;font-style:normal;outline-style:none;margin:0px;orphans:2;widows:2;letter-spacing:normal;outline-color:invert;background-color:#ffffff;text-indent:0px;-webkit-tap-highlight-color:transparent;font-variant-ligatures:normal;font-variant-caps:normal;-webkit-text-stroke-width:0px;text-decoration-style:initial;text-decoration-color:initial;padding:0px;font-size:14px;box-sizing:border-box;'\u003e\u003cspan style=\"font-size:20px;font-family:Arial;\"\u003e\u003cstrong\u003eCLK→P02\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 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