The document lists various microcontroller-based mini projects primarily focusing on automation, control systems, and monitoring applications. Key projects include mobile phone-controlled electrical devices, temperature monitoring systems, and GPS-based navigation tools. The projects utilize a variety of technologies such as IR, RF, and LCD displays for enhanced functionality.

1. Microcontroller based Mini Projects
1. Mobile phone (DTMF) controlled electrical device switching
2. Automatic advanced Railway gate Control System.
3. Digital Realtime Clock Implementation with Microcontroller and LCD.
4. Industrial conveyer belt object counting system.
5. Intelligent High Power LED Street light Control System.
6. Digital Frequency Meter with LCD Display
7. IR Remote Controlled Realtime Clock with LCD display
8. Transformer realtime temperature monitoring and thermal Overload protection
9. Digital RPM Indicator for Electrical Motor with Over speed alarm Indicator
10.Infrared Remote based Electrical Device Control with Triac and Optically Isolated Diac
11.Infrared Remote controlled High Voltage device switching with Electromagnetic Relay
12.IR TV remote controlled DC Motor speed controller with password protection
13.IR TV remote controlled Stepper Motor controller with password protection
14.LDR based automatic lamp illumination controller with High Power/Intensity LED lighting (PWM
control)
15.Optically Isolated Fuse blown Indicator with Sound and light indicator
16.High Voltage Fuse blown Indicator with Display on Computer/PC
17.Pulse Width Modulation (PWM) Speed Control of a DC Motor
18.IR LED and LDR based Heartbeat Monitor with display on LCD.
19.IR LED and LDR baaed Heartbeat Monitor with display on Computer/PC.
20.Temperature Controlled Fan (DC Motor based with PWM).
21.Realtime Car battery monitoring and low voltage alert system.
22.Automatic room light intensity based window blinds control system.
23.Temperature based ceiling fan speed control system (230v AC Motor).
24.Automatic Irrigation water supply monitoring and control system.
25.Infrared remote controlled garage door control system.
26.Automatic washing machine motor control system.
27.Vehicle inside and outside temperature monitoring system.
28.Wireless split AC blower and compressor control system.
29.Industrial and Home Security System based projects using various sensors like smoke, Fire,
GAS, Temperature, PIR, IR, RF etc.
30.Digital RPM indicator on LCD display (Used in latest Bikes and Cars etc.)
31.GPS speedo meter with Over speed alert system.
32.GPS and microcontroller based location (latitude and longitude) display On lcd display
33.Microcontroller based GPS Clock. It maintains accurate time based on the signals received from
the satellites.
34.GPS and Microcontroller based Geographical location Identification System.
35.Digital Thermostat with LCD Temperature Display.
36.Embedded Realtime Clock based Industrial Devices Control System.
37.GPS Based Train/Bus Station Indication System with display on LCD.
38.GPS based Speedo meter (Used in Boats,Ships, Aero planes etc).
39.Microcontroller based digital Over voltage Protection system for industrial loads.

2. 40.Radio Frequency (RF 433 MHz) based Industrial Wireless Device Control System.
41.Microcontroller based advanced automatic city street control system.
42.Industrial Advanced Temperature monitoring and Control System.
43.Microcontrolle based water level monitoring and control system.
44.Microcontroller based Digital Alpha-numeric message scrolling Display.
45.Automatic intrusion Alarm/Alert System.
46.Digital Energy Meter LCD display.
47.Radio Frequency based Realtime Child monitoring and alarm system.
48.Realtime burglar alarm system using PIR Sensor (Passive Infrared Sensor)