Interface circuit between 51 single chip microcomputer and MAX7219
Source: InternetPublisher:sigma Keywords: MCU interface circuit Updated: 2024/08/07
The following figure shows the connection diagram of 51 series single-chip microcomputer 89C2O5l and MAX7219. For convenience, only one common cathode digital tube U3 is drawn in the figure. The connection of the other seven common cathode digital tubes is the same. P1.7, P1.6, and P1.5 in the P1 port of the single-chip microcomputer 89C2O5l are connected to the DIN, CLK, and LOAD of the MAX7219 respectively. The segment outputs A~F of the MAX7219 are connected to the A~F of the common cathode digital tube respectively. The bit driver DIGO is connected to the ground terminals 3 and 8 of the digital tube.
- Temperature and clock display
- Hardware interface circuit between CH375 and single chip microcomputer
- SN75370 Dual MOS Memory Interface Circuit
- Using 89C2051 to make a four-way digital display water level controller circuit
- Interface circuit based on 8155 and single chip microcomputer
- How to make a numeric keyboard using XIAO RP2040
- How to use ESP32 to implement the design of air quality monitoring system
- Microcontroller test board circuit 1
- Circuit diagram: AT88RF
- ISP2 using real USB chip and M8
- CNC machine tool and computer communication circuit diagram design
- Analysis of internal reset circuit diagram of microcontroller
- Dual audio decoding electronic circuit
- Stepper motor drive circuit composed of LB1836M
- Two types of negative voltage generation circuit diagrams of single-chip microcomputer
- Minimum system interface circuit based on AT89C52 microcontroller
- Keyboard-display interface circuit
- Contact relay output control interface circuit
- Switching interface circuit in timing query mode
- Optoelectronic interface circuit between single-channel DA chip DAC0832 and microcontroller
京公网安备 11010802033920号