Mô Đun Hiển Thị 8x8 Led Matrix Max 7219 Uno R 3

Product description:
Max 7219 is an integrated serial input/output common cathode display drive, it connects the microprocessor to the
7 led, you can also connect bar chart displays or 64 separate leds. It includes a b bcd encoder on a film、 multi-way scanning loop, paragraph word drive, and there is a 8x8 static ram to store each data. Only one external register is used to set the current of each led
A convenient four-line serial interface can connect all common microprocessors. Each data can be addressed without rewriting all displays when updated. Max 7219 also allows users to encode or not encod each data.
The whole device contains a low power shutdown mode of 150 a, simulation and digital brightness control, a scan limit register allows users to display 1-8 bit data, there is also a detection mode that allows all leds to emit light.
Only 3 ios are needed to drive a dot array Dot display without flash Support cascades
This price is the price of the diy suite, not the finished price
Disclaimer: Ensure that all components are completely new, pcb plates are tested, make sure that physical connections are good. Welding risks, once welding, no refunds are accepted.
Modular parameters:
A single module can drive a 8x8 cumbersome array
Modular working voltage: 5v
Modular dimensions: 3.2x3.2x1.5
With 4 fixed screw holes, aperture 3mm, m3 copper columns can be fixed
Module belt input and output interface, support multiple modular cascades
Wire description:
Input port to the left of the module, the output port is on the right.
Control of individual modules, just need to connect the input port to cpu
Multiple modular cascades, input end cpu for module 1, output end to input end of module 2, output end of module 2 connects the input end of the third module, so on
Take 51 mcu as an example:
Vcc 5v
Gnd gnd
Din p20
Cs p21
Clk p22
Points of note:
Vcc and gnd cannot reverse, to avoid burning chips
P0 control time using 51 mcu, must be connected to pull resistance, recommended resistance of 4.7k-10k
Please insert the dot array into the round hole seat, then insert the round hole seat into pcb plate welding. Turn the graphic side toward yourself, this side is 123456 in left to right. Pcb 1
List of shipments:
Pcb 1 (Ic、 resistance、 capacitance)
5p 2
8p 2 (Spacing 2.54mm)
3mm