Breadboard Power Supply Module (5V/3.3V)
by Generic
SKU: PSA-CMP-BB-PSU
No reviews yetTypical India street price
₹50–₹120
Clips onto a breadboard and labels +/− so students stop frying chips.
Interface: Fits 830-point breadboard rails
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Concept
AMS1117 regulators + USB/barrel on a small PCB that straddles the power rails.
A little theory
Linear drop from barrel can get hot. USB 5 V path is cleaner for 5 V work. In the classroom, treat Breadboard Power Supply Module (5V/3.3V) as a beginner part using Fits 830-point breadboard rails. Typical India street price is about ₹50–₹120. 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
Seat it on the +/− rails, select 3.3/5/OFF jumpers per side, then plug USB.
Classroom & project use
- Every breadboard lab
- Power Supply classroom demo
- Science exhibition project
Buying in India
Precautions
- Don’t feed two sources at once
- Heat from 12 V barrel
Specifications
| Rails | 3.3V and 5V |
| Category | Power Supply |
| Difficulty | Beginner |
| Voltage | USB or 6–12 V barrel → 3.3/5 V rails |
| Interface | Fits 830-point breadboard rails |
Pinout
See module silkscreen: typically VCC, GND, and signal pins. Confirm labels against the seller photo — clones vary.
