Relay interface on I/O ports
When a current flows through the coil, the resulting magnetic field attracts an armature that is mechanically linked to a moving contact. The movement either makes or breaks a connection …
Read MoreTag: Embedded Systems
LED interface on I/O ports
Connect LED to I/O port with 220k resistor and 5V power supply. Connect cathode of LED to pin port and anode with resistor. You can still connect LED without resistor …
Read MoreInterface Switch – 8051 I/O ports
You can interface switch on input/output port of 8051 micro controller. Ports are TTL (Transistor Transistor Logic) pins. Its has 0V or 5V on pin depending upon ON or OFF. …
Read MoreBasic 8051 Microcontroller Circuit
To use microcontroller in your project you need basic circuit to make use of all functions of 8051 microcontroller.
Read MorePower Supply circuit
5 volt power supply circuit is shown on read more.. if u need 9V DC supply then change 7805 IC to 7809 IC. Go for 12V AC step down transformer. …
Read More8051 Pin Diagram
Pin diagram for 8051 micro controller has show below.
Read MoreIntroduction to 8051 Microcontroller
The 8051 is a Harvard architecture, single chip microcontroller (µC) which was developed by Intel in 1980 for use in embedded systems.
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