GeeekPi 4Pcs 8 Digit 7 Segment Module MAX7219 8 Bit Digital Segment Tube LED Display Module with Wirres for Arduino MCU/51/AVR/STM32/Raspberry Pi 4 Model B
GeeekPi 4Pcs 8 Digit 7 Segment Module MAX7219 8 Bit Digital Segment Tube LED Display Module with Wirres for Arduino MCU/51/AVR/STM32/Raspberry Pi 4 Model B
Descriptions:The MAX7219/MAX7221 are compact, serial input/output common- cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221 is compatible with SPI, QSPI, and MICROWIRE, and has slew-rate-limited segment drivers to reduce EMI. The MAX7219 chipset supports a serial 16-bit register/data buffer which is clocked in on pin DIN every time the clock edge falls, and clocked out on DOUT 16.5 clock cycles later. This allows multiple devices to be chained together. The devices include a 150µA low-power shutdown mode, analog and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on. Features:SPI driver Cascadable Supports dimming mode (PWM) Easy to drive Easy to install Digital tube with low power consumption 10MHz Serial Interface Individual LED Segment Control Decode/No-Decode Digit Selection 150µA Low- Power Shutdown (Data Retained) Digital and Analog Brightness Control Display Blanked on Power-Up Drive Common-Cathode LED Display Slow-Rate Limited Segment Drivers for Lower EMI (MAX7221) SPI, QSPI, MICROWIRE Serial Interface (MAX7221) Package Includes4 x MAX7219 7-Segment LED matrix 4 x 5Pin jumper wire
- MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits; MAX7219 digital display control module, you can use it for Arduino.
- The MAX7219 chipset supports a serial 16-bit register/data buffer which is clocked in on pin DIN every time the clock edge falls, and clocked out on DOUT 16.5 clock cycles later.
- The devices include a 150A low-power shutdown mode, analog and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on.
- Note:VCC and GND do not reversed, it would burn the chip.51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines.