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MAX7219 is an integrated serial input / output common-cathode display drivers , which connects the microprocessor 7-segment digital LED display with 8 digits , bar graph can also be connected monitor or 64 separate LED. On type B BCD encoder includes an on-chip , multi-channel scanning loop , segment word drive, but also a 8x8 static RAM for storing each data . Only one external register is used to set the segment current for each LED.
A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update does not overwrite all of the display . MAX7219 also allows the user to select each of the data code or not coded.
The entire device includes a 150A low-power shutdown mode , analog and digital brightness control , a scan-limit register allows the user to 1-8 bits of data , there is an LED light so that all the detection mode.
Wiring instructions:1,Module on the left as an input port, output port on the right.
2,Control of a single module, simply input port to the CPU
3,more modules cascade input termination module of a CPU, 2 output termination module input and output of the two modules is terminated with the input end of the first three modules, and so on.
51 MCU, for example:
VCC → 5V
GND → GND
DIN → P22
CS → P21
CLK → P20
Package list:、
4 X MAX7219 dot matrix module
4 X DuPont line 5pin
Notice:Requires only three IO ports can drive a dot ! No flashing dot matrix display ! Support cascade !
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NOTE: All the orders will be shipped from our China warehouse.
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Delivery Time: 3-7 working days
You can track on http://www.dhl.com/ or https://www.17track.net/en
Delivery Time: 3-7 working days
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Delivery Time: 7-12 working days
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Delivery Time: 12-15 working days
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Delivery Time: 30-60 working days
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* Delivery Time - These are the delivery estimates provided by our shipping partners and apply from point of dispatch, not from point of sale. Once your parcel leaves our warehouse, we cannot control any delays after that point.
Such as the products you buy on our site - can't simply be shipped freely from country to country. When goods are imported into a different country or customs territory, there is a charge called Customs Duty that must apply. This is charged by the local customs authority where the goods are being imported into.
If Customs Duty is payable to your territory, you'll be responsible for paying it to the authorities, so SunFounder isn't involved in this process. Whether Customs Duty is payable, and by how much, depends on a whole lot of different things. For example, many countries have a 'low value threshold' below which they do not charge any Customs Duty.
If you do have to pay Customs Duty though, the amount payable is usually calculated based on the value of the goods and the type of goods being imported.
If, for whatever reason, you refuse the customs fee and the parcel is returned back to us. If you're still unsure on whether you'll be subject to customs fees, we recommend contacting your local customs office for more info before placing your order!
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