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3Pcs MAX7219 Dot Matrix Module MCU LED Control Module Kit For Arduino Specifications: A single module can drive an 8 x 8 common cathode lattice Operating voltage: 5V Size: 5 x 3.2 x 1.5 cm (L x W x H) LED color: Red With four screws hole, aperture 3mm With input and output interfaces, supports multiple modules cascade Wiring instructions: 1. The module left side as an input port and the output port on the right 2. To control a single module, just connect the input port to the CPU 3. When cascading multiple modules, the input port of the first module connect to the CPU, the output port connect to the input port of the second one, and so on. In the case of 51 MCU: VCC → 5V GND → GND DIN → P22 CS → P21 CLK → P20 Note: 1. VCC and GND is not reversed, it would burn the chip! 2. When the 51 microcontroller P0 port controlling, must be connected to the pull-up resistor, it is recommended that the resistance of 4.7K--10K 3. Please install lattice into the round hole first, and then insert the round hole to PCB board and weld. Face the side of lattice with words, from left to right pin order is 123456. PCB board 1st pin is square pad! 4. Electrolytic capacitors long-pin as positive, short-pin as negative; ceramic capacitor hsa no positive and negative points Package included: 3 x LED module 3 x Dupont line (5P-20cm)

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Specifications: Voltage supply: 9-12V DC Input Waveforms: Square, Sine & Triangle Impedance: 600 Ohm + 10% Frequency: 1Hz - 1MHz SINE wave: Amplitude: 0 - 3V at 9V DC input Distortion: Less than 1% (at 1kHz) Flatness: +0.05dB 1Hz - 100kHz SQUARE wave: Amplitude: 8V (no load) at 9V DC input Rise Time: Less than 50ns (at 1kHz) Fall Time: Less than 30ns (at 1kHz) Symmetry: Less than 5% (at 1kHz) TRIANGLE wave: Amplitude: 0 - 3V at 9V DC input Linearity: Less than 1% (up to 100kHz) 10mA Instruction: Click to open Package included: 3 x XR2206 Function Signal Generator DIY Kit  

Feature:   Product type: YYPWM-1 Frequency range: 6HZ - 100KHZ adjustable Duty cycle range: 1 - 99% adjustable Power supply: DC 3.3V - 20V common PWM width = input voltage Output PWM drive capability: S8550 transistor output drive, the drive current up to 100MA When no decimal point, HZ is the unit; when there is a decimal point is KHZ; automatic conversion, no need human adjustment   Package includes:   3 x Square Wave Signal Generator Test, for reference only, the display does not includes:

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