Power Supply Module 3.3V and 5V - An Alternative

Today I present you an alternative to the well-known Ywrobot MB102, which can be plugged on Breadboard and can be switched off on the current-carrying strips to 3.3V / 5V or off.

This is about the slightly smaller model from SparkFun whose title is "Breadboard Power Supply USB" and is available under article PRT-08376.

The power supply, which consists of a little more than a dozen still to be soldered items, is quickly soldered, provided that one has dealt with the 3 different color codings of the resistors (all 3 resistors have 4 rings ;-)) and especially the slightly too wide spaced holes for the 2x 2 PINs has fixed. A component for $ 11.50 could have been a bit more precise at this point on the distances of the breadboard. This leaves only the manual spreading of the PINs so that they can be used both in the PCB and in the breadboard.

The simultaneous output of 3.3V as well as 5V also offers its advantages for corresponding devices and sensors, which can then be directly removed.

A control light in red indicates the working status, which is switched via an on / off switch.

To support the input side of the (aged) USB type B connector, it would have been nice if a one or two manual spacers could also be screwed into the PCB. Thus, a supplied USB cable pulls the PCB down and it seems unstable. This could cause the PINs on the other side to be levered out of the breadboard.

As an indication, remember that the PTC Resettable Fuse does not actually need to pass through the 2 PTC labeled holes. Do not try to straighten the legs of the Fuse.

All in all: it works. The blue LED was extended to the other half of the breadboard with jumper.