MEGO 2.0
The ultimate power management solution for quick and neat breadboard circuiting
Adjustable Output Voltage
Rechargeable Battery
Breadboard Fitting
Product Overview
MEGO 2.0 builds upon the original MEGO design, a trusted and popular rechargeable breadboard power supply developed since 2018. Retaining the core features of the original, this new iteration addresses user feedback and introduces key enhancements for even more versatility and convenience.
A standout feature, MEGO 2.0 offers a portable and adjustable DC output voltage range from 4V to 24V. Its compact design allows it to plug directly into standard breadboards without any additional wiring, keeping circuits neat and simplifying setup. The output voltage can be securely adjusted with a small screw, with real-time voltage displayed for precision. Equipped with a high-capacity lithium-polymer battery, MEGO 2.0 ensures long standby and operation, making it a reliable power source for on-the-go prototyping and testing.
MEGO2.0 vs MEGO
Here is a summary of what's being changed on MEGO2.0 comparing to the preivous iteration.
Micocontroller
N/A
rp2040
Adding programmable feature
PCB Design
Assmebled modules
All-in-one PCB
More reliable hardware performance
Device Height
32mm
28mm
More compact PCB design therefore device size is reduced
Charging Connector
Micro
Type-C
USB-C is far more universal nowadays
Front USB
4-24V
5V fixed
Safer and more intuitive
Surface finishing
Glossy
Matte
More resistive to scratches and less reflections while photoshooting
Specifications
Electrical Specification
Output Voltage Range [from pins]
4 - 24V
Maximum Power
6W
Overload Protection
Yes
Short Circuit Protection
Yes
Battery Capacity
7.4Whs
Conversion Efficiency [1]
80%
Voltage Display Accuracy
2%
Ripple Voltage [2]
1%
Operating Temperature
-15 to 45 °C
Calculated at V out = 5V
Measured under V out=5V, 9V, 12V
Dimensions
The measurements are in milimeters [mm]
Gross weight: ~100g (3.5oz)
Technical Documentation
Circuit Schematic
The full schematic of MEGO2.0 is given in these two pages of circuit diagram. You can also find the downloadable PDF below. The schematic is drawn in KiCAD.
PCB Layout
The circuit of MEGO2.0 is drawn and implemented on a 2-Layer PCB sized by 65mm x 52mm where the placement of components is illustrated as below. Due to the inaccessibility of certain liscense required components involved, the downloadable version of this PCB layout is not available. If you are an intermediate or advanced PCB/hardware designer, recreating this board should be straightforward.
Bill of Material
Download the IBOM file below to your local drive and open this HTML file to view the interactive BOM of this project, which appears as:
To open the interactive BOM, download this file and open with your browser. It's an html file that you can double click.
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