Police lighting
The circuit that switches between red and blue lights to simulate police lights using the ESP8266 controller and the PNP transistor 2N2222 can be described as follows:
ESP8266: Acts as the main controller in the circuit. It can be used to control the light state (red or blue) and send control signals to the transistor.
PNP Transistor 2N2222: Used to control the current flow to the LEDs. The transistor acts as a switch to control the on/off state of the current by controlling the base current (small current) using a signal from the ESP8266.
Red and Blue LEDs: Used to simulate police lights. The red and blue LEDs can be connected in the same circuit, and the current is switched between them using the transistor.
Resistors: Resistors are used to control the base current of the transistor and ensure its proper operation.
Power Source: A suitable power source should be provided to power the circuit, supply the LEDs and ESP8266.
#define LEDb D1
#define LEDb2 D2
#define LEDr D5
#define LEDr2 D6
#define d 75
void setup() {
pinMode(LEDb, OUTPUT);
pinMode(LEDb2, OUTPUT);
pinMode(LEDr, OUTPUT);
pinMode(LEDr2, OUTPUT);
}
void loop() {
digitalWrite(LEDb, HIGH);
digitalWrite(LEDb2, HIGH);
delay(d);
digitalWrite(LEDb, LOW);
digitalWrite(LEDb2, LOW);
delay(d);
digitalWrite(LEDb, HIGH);
digitalWrite(LEDb2, HIGH);
delay(d);
digitalWrite(LEDb, LOW);
digitalWrite(LEDb2, LOW);
delay(d);
digitalWrite(LEDr2, HIGH);
digitalWrite(LEDr, HIGH);
delay(d);
digitalWrite(LEDr2, LOW);
digitalWrite(LEDr, LOW);
delay(d);
digitalWrite(LEDr2, HIGH);
digitalWrite(LEDr, HIGH);
delay(d);
digitalWrite(LEDr2, LOW);
digitalWrite(LEDr, LOW);
delay(d);
}
Police lighting
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
- Comments(0)
- Likes(1)
More by CD Smart
-
remote controller
WiFi Infrared Remote Control Universal Smart Remote Control for Air Conditioner Fan TV Voice Control...
-
WiFi Smart Wall Switches
All switches can be controlled remotely using your phone, and devices connected with switches can wo...
-
Smart Home 4CH Pro
Overall, the Smart Home 4-Line 10A Panel simplifies home automation and enhances convenience through...
-
Shutter control 10A
Overall, the remote curtain opener and closeer control panel simplifies home automation and enhances...
-
Air conditioning control board
Overall, the AC on/off control panel simplifies home automation and enhances comfort through central...
-
Smart Home 3CH_10A
Overall, the Smart Home 3-Line 10A Panel simplifies home automation and enhances convenience through...
-
Smart Home 2CH_10A
Overall, the Smart Home 2-Line 10A Panel simplifies home automation and enhances convenience through...
-
Smart Home 4CH_10A
Overall, the Smart Home 4-Line 10A Panel simplifies home automation and enhances convenience through...
-
Stepper Motor Control
The port was implemented to connect the ESP and the driver so that the shield is integrated and a de...
-
Smart Home_8CH_10A
Overall, the Smart Home 8-Line Board simplifies home automation and enhances convenience by centrali...
-
Smart Home_4ch-smart_1.4
Overall, the Smart Home 4-Line Board simplifies home automation and enhances convenience by centrali...
-
Smart Home_4CH_2A
Overall, the Smart Home 4-Line Board simplifies home automation and enhances convenience by centrali...
-
PET Machine
The temperature and speed control board of the stepper motor is used to control the water bottle rec...
-
Staircase lighting control
The circuit works to sense movement using the SIR motion sensor, and when anyone approaches the sens...
-
4CH Relay Module
Robust design using an NPN transistor to drive each relay with a PC817 optocoupler.Relay on LED indi...
-
Police lighting
The circuit that switches between red and blue lights to simulate police lights using the ESP8266 co...
-
Smart Home
Overall, the Smart Home 4-Line Board simplifies home automation and enhances convenience by centrali...
-
-
-
kmMiniSchield MIDI I/O - IN/OUT/THROUGH MIDI extension for kmMidiMini
124 0 0 -
DIY Laser Power Meter with Arduino
173 0 2 -
-
Box & Bolt, 3D Printed Cardboard Crafting Tools
163 0 2
