Breadboard power supply
The Breadboard Power Supply module delivers regulated 3.3V and 5V to power circuits on solderless breadboards. It plugs directly into the power rails, making it essential for rapid prototyping with Arduino and other development boards.
Key Features
- Dual output voltages: 3.3V and 5V simultaneously
- Plugs directly into breadboard power rails
- USB or DC barrel input for flexible power options
- Independent power switches for 3.3V and 5V rails
- LED indicators for each voltage rail
- Up to 700mA per rail (USB powered)
- Compact design fits standard breadboards
Technical Specifications
| Parameter |
Specification |
| Output Voltages |
3.3V and 5V |
| Max Output Current |
700mA per rail (USB) |
| Input |
USB Type-B or 6.5V-12V DC barrel |
| Output |
Dual 3.3V/GND and 5V/GND |
| Regulator |
AMS1117-3.3 and AMS1117-5.0 |
| Efficiency |
Linear regulator |
| Dimensions |
53mm x 33mm (breadboard module) |
| Pin Spacing |
Standard 2.54mm |
Applications
- Breadboard prototyping power supply
- Arduino projects on breadboard
- Sensor testing and development
- Logic level circuit development
- Educational electronics labs
- Quick circuit testing without dedicated supply
Important Notes
- Do not exceed 12V on barrel input – will overheat regulators
- Total current from USB limited to 500mA (USB 2.0) or 900mA (USB 3.0)
- Linear regulators generate heat – input voltage should be close to output
- Module fits between breadboard power rails – verify your breadboard type
- Can power both 3.3V and 5V circuits simultaneously
- Some versions have USB output port for charging/ powering other devices
