5V 2A USB Power Adapter
by Generic BIS
SKU: PSA-CMP-PSU-5V2A
No reviews yetTypical India street price
₹120–₹350
Wall adapter for hubs, NodeMCU, and light servo loads.
Interface: USB-A / micro / Type-C
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Concept
A regulated 5 V source. Current rating must exceed the project’s peak draw.
A little theory
USB 5 V. Voltage sag under load causes random MCU resets — classic “works on PC, dies on battery pack”. In the classroom, treat 5V 2A USB Power Adapter as a beginner part using USB-A / micro / Type-C. Typical India street price is about ₹120–₹350. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Plug into VIN/USB. For motors, split: MCU on 5 V, motors on battery, common GND.
Classroom & project use
- Lab bench
- Demo table
- Power Supply classroom demo
Buying in India
Precautions
- Check polarity
- Don’t exceed cable current
Specifications
| Output | 5V 2A |
| Input | 230 VAC |
| Category | Power Supply |
| Difficulty | Beginner |
| Voltage | 5V DC |
| Interface | USB-A / micro / Type-C |
Pinout
See module silkscreen: typically VCC, GND, and signal pins. Confirm labels against the seller photo — clones vary.
