Interface circuit between AT89C51 and RS-232
Source: InternetPublisher:elleny Keywords: Interface circuit AT89C51 Updated: 2024/08/19
The RS-232 serial interface circuit is shown in the figure below. It is mainly used for communication between PC and single-chip microcomputer. Here, the 2nd, 3rd and 5th pins of the serial port are needed for communication, corresponding to the receive, send and ground signals respectively, to complete the sending and receiving of data.
At the same time, in order to realize the connection between the microcontroller and the PC, MAX232 is used as the serial port level conversion chip to complete the conversion between the TTL level of the microcontroller and the RS-232 level.
- Simple USB interface data acquisition system
- Interface circuit composed of 74LS164 and 8051 microcontroller
- Digital signal isolation interface circuit
- Interface circuit between CAN bus controller and single chip microcomputer
- Interface circuit between 51 single chip microcomputer and MAX7219
- How to make a super solar tracker using ESP8266
- Experiment on using 51 microcontroller to drive relay
- Circuit diagram: AT88RF
- Serial to infrared circuit
- One card multiple numbers card reader circuit schematic diagram
- Interface circuit design of SPCE061A microcontroller and fingerprint identification module
- Thyristor triggered interface circuit b
- DAC0832 single-bipolar voltage output interface circuit
- ADC0809 and PC bus interface circuit
- MAX230 multi-channel data interface circuit
- MAX230 multi-channel data interface circuit
- Interface circuit for automatic counting using electronic counter b
- Interface circuit for automatic counting with electronic counter a
- Interface circuit between CMOS and HTL b
- Interface circuit between power supply coupler and microcomputer
京公网安备 11010802033920号