Attention !!! We are shipping orders now but due to Covid-19 situation it can take 1-2 days for your orders to be shipped from our Nashik warehouse. If you have any queries feel free to contact us. Thank you for your support and understanding.
  • 8412906903

Product categories

Have You Seen

Samsung 18650 2600mah Li-ion Battery

Samsung 18650 2600mah Li-ion Battery

Samsung ICR18650-26J 2.6Ah BatteryOriginal Samsung 18650 2600 mah Lithium-ion BatteryThis is or..

Rs.247.80 (inc GST)
Rs.210.00 + GST

SKU: 1183 | DAB424
Stock: 0
Arduino Mega 2560 Pro Mini

Arduino Mega 2560 Pro Mini

Mega Pro 2560 Development Board Mega 2560 Pro a  Atmega2560 based compact Arduino MegaThis..

Rs.889.72 (inc GST)
Rs.754.00 + GST

SKU: 2058 | DAB079
Stock: 25

Delay Based LED Blinking Program


Here is a simple code for Blinking a LED. The LED is connected to P2.0 & 12MHz crystal is used. The Anode of the LED is given to Vcc through a resistor & the cathode is connected to the microcontroller pin. Please check this link to see how to interface LED to Microcontroller. The LED is ON for One Second & OFF for ONE Second. This delay of ONE Second can be changed by changing the values loaded into the R7, R6 and R5 in the delay subroutine. The higher the value loaded the higher the delay. Since the controller is 8 bit microcontroller values greater than 255 cannot be loaded.


led1 bit P       2.0

ORG 0000h


clr led1


call delay

setb led1


call delay

ajmp loop


mov r7,#200


mov r6,#217


mov r5,#10

djnz r5,$

// "$" over here indicates jump at the same location

djnz r6,l2_delay

djnz r7,l1_delay




Written by Administrator