Product Overview
Prototyping Bus Regulator with Mini-USB and DC Barrel Inputs
Condition
New condition. Unused stock sourced directly for prototyping and breadboard assembly. Markings visible: V1497 etched on the underside, with dual AMS1117 linear regulators and rail selector switches. Sold individually.
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Product Overview
Regulated bus power routes cleanly across standard solderless breadboard rails using downward-facing male header pins that slot firmly into the power distribution rows. Power feeds through an onboard 2.1mm DC barrel jack or a mini-USB port, with independent three-position slide switches routing 3.3V, 5.0V, or a complete shutoff to either side of the prototyping area.
Key Features
- Independent output rails selectable for 3.3V, 5V, or OFF via dedicated slide switches
- Downward-facing header pins spaced to plug directly into MB-102 solderless breadboard rails
- Dual power input options: 2.1mm x 5.5mm center-positive DC barrel jack (7V to 10V DC) and 5V mini-USB port
- Dedicated AMS1117-3.3 and AMS1117-5.0 low-dropout voltage regulators
- Onboard reverse polarity protection diode and 500mA PTC resettable fuse
- Center power indicator LED shows active input voltage
- Dual 4-pin auxiliary header taps provide access to regulated voltages for external wiring
Applications
- Powering mixed-voltage microcontroller circuits requiring simultaneous 5V logic and 3.3V sensor rails
- Benchtop prototyping on standard MB-102 solderless breadboards without dedicated bench power supplies
- Educational electronics labs, maker builds, and rapid circuit testing
Frequently Asked Questions
Can the two power rails be set to different voltages at the same time?
Yes. Each side features its own three-position slide switch, allowing one rail to run at 5V while the other operates at 3.3V, or either side to be switched completely off.
What input power source should be used with the barrel jack?
A standard 7V to 10V DC center-positive power adapter with a 2.1mm x 5.5mm plug provides reliable regulation through the onboard AMS1117 regulators.
How can you verify that the module is properly oriented on the breadboard?
Check the red and blue rail lines on your breadboard against the silkscreen polarity markings next to the bottom pin headers before powering up, ensuring positive aligns with the red rail.
Plug it directly into the rails, set your voltages with a click of each switch, and get straight to building your circuit without wrestling bench leads.
