Welcome to my semester 4 university project! This project represents my individual work, and it comes with several important features:
- On/Off Switch: There's a main switch that turns the product on and off.
- Multimeter and Power Supply Modes: Another switch allows you to switch between two modes: multimeter and 5V power supply.
- Rotary Controls: You'll find two rotary switches designed for mode selection and adjusting the ohmmeter's scale.
- LED Display: All the important readings are conveniently displayed on an LED screen.
- Rechargeable Battery: What makes this product special is its built-in rechargeable battery system. Say goodbye to constant battery replacements; this product includes an integrated charger mechanism.
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This product functions primarily as a multimeter and can also serve as a 5V DC power supply.
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The multimeter offers four distinct modes:
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Voltmeter
- Measurement range: 0V to 50V
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Ammeter
- Measurement range: 1mA to 2A
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Ohmmeter
- Measurement range: 0 ohms to 1M ohms
- It includes four resistance scales:
- 0 to 1K ohms
- 1K to 100K ohms
- 100K to 400K ohms
- 400K to 1M ohms
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Continuity Checker
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No need to change probes when switching to ammeter mode.
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This product features a charging capability, and when fully charged, it can operate continuously for up to 12 hours.
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A two-way switch allows easy mode switching between multimeter and power supply.
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Weight: 500g
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Dimensions: 13cm × 9cm × 2.5cm
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Component List
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Block Diagram
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Circuit Diagrams
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Schematics Designs
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PCB Designs
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Enclosure Design
For more information, feel free to explore all the files and data in my repository. I've included comprehensive documentation, source code, and additional resources for a deeper dive into this project. Your feedback and contributions are highly appreciated.
- Atmega328p Microcontroller
- 3P4T Rotary Switches
- 16*2 LCD Display
- Single Pole Double Throw Switch
- On-Off Switch
- 1200mAh LiPo Battery
- TP4056 Charging Module
- MT3608 Boost Converter
