About LM7805 voltage regulator IC: It is a fixed linear voltage regulator IC which is a member of the 78xx series. When the applied voltage is between 7-24 v it
2N2222 Transistor 1 1N4148 1 Resistor 220ohm 1 Copper Wire 22SWG 3M Jumper Wires 3M 170 point Breadboard 2 LED 1 Capacitor 1nf 1 5v Supply 1
BD139 Transistor 1 1N4148 1 Resistor 10k 1 Copper Wire 22SWG 3M Jumper Wires 3M 170 point Breadboard 2 piezo Buzzer 1 Capacitor (1 pc each) 1uf 100V470pf4.7pf100nf Battery 5v
Comporents Required : 1) LM3914 (bar display driver),2) SPST switch,3) BAR Display (dip 20),4) 12v battery,5) Resistors (56k,4.7k,18k) ohm,6) 10k pot,7) Jumper wires,8) Bread board.
During the course of this blog we will explore how to display temperature and humidity on a 0.96″ OLED display using Arduino and DHT11 temp/humidity sensor. We will control two