The simulation is not bright and you will be prompted excessive CPU
Connect a lattice can on

CodePudding user response:

To pay attention to the anode and the cathode of the led, not bright,

CodePudding user response:

Could actually use equivalent 8 * 8 matrix, also pay attention to the single chip microcomputer drive current can achieve, pay attention to use on the circuit

CodePudding user response:

refer to the second floor Lenged_Zhao response:

to equivalent 8 * 8 matrix, the actual use also pay attention to the microcontroller drive current can achieve, pay attention to use pull circuit on

Pull up resistors is used, but still not bright, is the other end output level low level, in a couple of days welding a real try yourself

CodePudding user response:

You should try a single led can light up, pay attention to the led voltage is 3.3 V or 5 V, and on the need to add current-limiting resistance, prevent excessive current burn out the chip and led lights, the simulation can add ammeter and voltmeter, and expected the same test circuit?

CodePudding user response:

Of course, are scanned

CodePudding user response:

Answer your first question: can the equivalent,

It is important to note.
1. If use LED lights to do physical, LED the pressure drop must be considered in general about 2 V LED lights of the pressure drop for (different colors of leds is not the same as the pressure drop), that is, a 1 V voltage LED two ends, the light is not bright, maybe just burned when voltage from 2.5 V, so that's why our series of LED using constant current source (constant current, voltage limits) automatically for good reason,
2. If use common LED to do physical, using microcontroller IO port direct drive is impossible, when all your leds light, need to consider the current of MCU I/O capabilities,
3. The integrated lattice can use single chip microcomputer direct drive because of limited flow inside lamp processing circuit,
4. Can be driven by current small MOS indirectly,

CodePudding user response:

The drive ability is enough, can be equivalent,