SunFounder BreadVolt Breadboard Power Supply Module Built-in
SunFounder BreadVolt Breadboard Power Supply Module Built-in Rechargeble Battery Compatible with Arduino, Raspberry Pi, Pico W, ESP32, 5V/1.5A, 3.3V/1A, USB Output (Breadboard NOT Included)
SunFounder BreadVolt, your one-stop breadboard power solution. Compatible with Arduino, Raspberry Pi, ESP32, Pico W, and more, it provides 5V/1.5A and 3.3V/1A outputs for various electronic projects.
The Detailed Online Tutorials can be found here: breadvolt.rtfd.io. Online Tutorials Available in EN, DE and JP.
If you’ve ever needed a way to quickly test a simple circuit, maybe leds or some kind of logic circuit maybe, this would be a great addition to your work bench.
I’ve found it very useful for running up simple circuits when I don’t really need to go to the lengths of setting up my bench power supply or looking for some batteries with a decent level of charge left.
It has options for 3.3 and 5v DC and has meant that I’ve tended to breadboard test small circuits rather than just build and hope I got it right!!
Also, it’s given me the option to go mobile with a breadboard and test circuits and ideas for things that are outdoors without having to use various different power banks and so on.
Overall, a useful and time saving bit of ki
I ordered this as I have a few garden projects that I’d like to use it for. It is however great for anything where a traditional power supply may be difficult to use (outdoor projects, portable projects etc…).
It doesn’t fit all styles of breadboards so just be careful when ordering. Although breadboards are very cheap to change so this isn’t really a big deal. The power supply module seems to be well-built and of good quality. It’s very easy to use and install. It provides both 5V and 3.3V outputs so should be suitable for a wide array of projects. It’s easy to switch on and off using a simple clearly marked power switch. In fact everything is nicely annotated on the board.
All in all I’m very happy with this power module. It’s versatile and convenient. Great for small projects.
Nice breadboard psu with backup battery, outputs were within a couple of millivolts of stated outputs. Great if you need your project to be ‘portable’.
However it doesn’t suit all breadboards, mine was designed for ‘pi’ type projects and to power the board it had to be inserted at an angle (still worked). Battery backup lasted about 1/2 hr with pi 3.
Nice to see the inclusion of a usb ‘A’ output and that it is usb ‘C’ to charge.
Overall does the job and is cheap enough.
This is a good way to power your breadboard for small tasks. The rechargeable battery sits neatly and can be charged via USB. There are options for 5v or 3.3v outputs.
Convenient and versatile. Well built and a good price. Would recommend.
The power supply came to me completely discharged and I had to charge it which took quite a long time, but that’s fine as I guess it indicates that the battery has a high capacity. I really like the quality of the PCB and the components used look fine. So far I’ve not done anything with it apart from lighting up an LED and running a tiny motor but it seems to work perfectly and fits onto breadboard like it should. I would be interested to see what sort of runtime I get out of the single battery when I connect my old Raspberry Pi Zero to it. I’m pleased with the product and I would recommend it.
I already have a breadboard power supply but it does not have a battery and to use it I have to dig out a power supply, this has the battery integrated in it which is very handy indeed.
It fitted my standard breadboard perfectly as can be seen in the attached photographs and the voltage delivered under no load conditions was as stated. The voltage out is chosen by moving a jumper between the pins so you can have both sides the same or different voltages on both sides. I will be using this for quick testing my Arduino LED sequencing projects.
In conclusion, I like this a lot.
Power supply onto breadboards is almost always janky and prone to being inadvertently disconnected; usually it’s just two wires from a bench PSU. This solves that, by providing rail voltages either in a portable battery format, or via USB. Great for testing circuits etc.
This is a well made little board and much better than the usual type of one that I own that need an external power source. The rechargeable battery makes this great to play about with on a whim, anywhere you want.
There is a selector on each side so you can have 5V or 3.3V on either side and little leds to show when each side is on and when the whole unit is on.
The fitting is pretty good, but the battery does have a tendency to pull down on the back of the board, so I might glue some foam to the bottom of it so it rests on the surface. Other than that, this is a nicely designed and built psu module for breadboards.
For the odd project I develop using my breadboard, I usually use a USB lead wired directly into a hub. Whilst this provides unlimited power, it does need me to be close to a mains socket to power the hub.
This is a neat little power supply with pins appropriately placed to fit perfectly into a breadboard. Initially I found it had no power so clearly ships with a “flat” battery. On plugging in to my USB hub the power supply was providing 4.65V to the board with the jumpers in the 5V position, and 3.25V when switched to 3V. Once the battery was charged (the charge light goes from red to green) it then provided 4.99V and 3.29V.
The battery should last for a reasonable time for simple projects, the capacity is a quoted 500mAh, so would power 10 LEDs for perhaps 5 hours.
At 9 this is a reasonably priced option and alternative to using a USB lead with the advantage of offering options for both 3.3V and 5V and complete portability.
This battery-powered breadboard supply is a fantastic addition to my electronics toolkit. Its standout feature is the clever design that allows the breadboard to remain flat, thanks to included spacers that elevate the power supply to accommodate the battery.
The ability to independently control the voltage on each rail (5V or 3.3V) or disable them entirely via jumpers offers excellent flexibility. The LED indicators for each rail are a helpful visual aid.
The inclusion of a USB-A output port is a major bonus, enabling easy powering of external microcontrollers like Arduino boards. However, there’s a slight peculiarity when charging via USB-C: the output voltage drops to 4.8V while the cable is connected. This likely stems from a diode drop within the charging circuitry.
Additionally, the lack of a DC power jack means it cannot be powered by an external 9V or 12V DC supply. This could be a limiting factor for some users.
Despite these minor drawbacks, this breadboard power supply offers excellent value for money. Its innovative design, dual voltage rails, and USB-A output port make it a versatile and practical tool for electronics enthusiasts and hobbyists.
SunFounder BreadVolt Breadboard Power Supply.
SunFounder is a company I have been using now for a number of years for supplying Arduino electronic components and kits. The components are made to a high standard and to date I have never had to return any.
This power supply fits firmly into any solderless breadboard with a dual power bus on both sides. Each power bus can be supplied with either 5 Volts 1.5 Amps and/or 3.3 Volts 1 Amps. Also available is a 5 Volts USB Type-A Female output socket.
Power is supplied via a USB Type-C female socket which also charges the integrated 3.7 Volts 14500 lithium rechargeable 500mAh battery. This battery was flat on arrival and I recharged it in 81 minutes and it took 548mAh charge.
I will be using this for my Arduino projects and it is especially useful for those projects that need to be independent from a power supply.
It’s certainly a nice piece of kit of which I will continue to use and I can thoroughly recommend it.
This is a useful little board. Charging is via USB C port, with a red led indicating charging. The other leds are lit when the board is turned on. There is a USB A output and two outputs via header pins, each selectable as 5V or 3V3. When charging, the unloaded 5V output was 4.5V, though this varied with different USB supplies. When not charging, the unloaded outputs were 5.05V and 3.27V, so accurate enough.
It suits many breadboards that have a dual power bus either side of a set of breadboard rows, and using with boards having a power bus in a different orientation is also possible (e.g. AD-12, AD-14 etc. from K&H)
There are various fuses on the board, and it seems reasonably well designed. I tested it using all voltages powering an ESP 8266 project that has an active WiFi connection to fetch some data, and at the PSU they were 5.04 and 3.27. Powering a PCB I designed that draws more current, the voltage at the PSU was again 5.04, and at the USB input to the board, spot on 5.00. Drawing close to the limits of the PSU I’d expect the voltages to drop, which another reviewer has measured, however if keeping sensibly within limits, it seems perfectly capable.
Good value and handy to have on hand.
For someone like me who is just getting started in ESP32 & Arduino projects, this is a truly great little bit of kit.
It’s simple to use and means that you don’t have to worry about power when designing your projects, it’s all taken care of. Just push it into the breadboard and plug in USB power, and it not only powers your project bus also charges its battery, meaning you can take your project anywhere. This is hugely useful for developing projects that are going to live outdoor or away from mains power.
The board seems well constructed with attention to detail into how it has been designed. The battery cell sits under the board at the end of your breadboard project, so everything fits together very neatly.
Great product, great value!
I really like this “no cable” power supply for breadboarding at either 3.3v or 5v or both as its selectable 3.3v/off/5v via jumpers on 2 power rails out to the breadboard, there are orange led’s to show when a rail is powered too. There is also a 5v USB output via a socket.
The breadboard connections are spacered so the pcb sits comfortably with the battery at the same base level as the breadboard. There is a power switch on the pcb too with a green led lit when on.
The 14500 3.7v battery has a capacity of 500mAh, charging is via the C port and while charging the red led is lit.
There is overvoltage and undervoltage protection built in, there is also over current and short circuit protection.
A slight disappointment was that while charging the battery the 5v and 3.3v rails drop voltage, the 5v rail drops to 4.8v so if you really need tight to spec voltage then stick to portable only.
You can find some starter projects listed at Sunfounder.com the link is in the sales page.
Pleased with mine and inexpensive at 8.99 at time of review.
This comes in an electrostatic bag in a box. I mention this because I will continue to replace it into the bag to keep it from shorting out when I chuck it in with the breadboard wires. The battery has it’s ends covered over so they’ve thought of that but I like being able to use the bag to prevent any other short.
It’ll fit most standard breadboards that have power lines on both sides. Even the +/- rails match up with the outputs. What I really like is how it is designed to just hang over the edge with the battery underneath – it all fits rather well.
You have the option to run 5v and/or 3.3v on either rail so you can mix and match to suit your breadboard circuit layout. This is done by simply popping one of the jumpers into the right position which is clearly marked on the PCB. I like that you can also have the jumper in a central position to disable the output on that rail.
A while bunch (4) LEDs telegraph what is going on with the board status e.g. charging, power on rail 1, power on rail 2 and ON. The power is turned on/off via a little PCB mounted switch.
I tested the output voltages powered via the onboard battery but also while I had the unit powered externally (via a powerbank). Note that all measurements were taken without being under any load. At 3.3v is was very consistent and pretty much bang on 3.3v (see photos). With a 5v powered via the onboard battery is was again very close to 5v at 5.06v. When powered externally it read 4.67v, so I don’t know whether it’s not meant to be used while charging and this is probably either pass-thro or voltage drop. It’s just something to note and not really any issue with the board, I was playing around and wanted to see.
All-in-all this is a really handy board as it allows you to power the breadboard without needing a big powerbank. Of course it only has limited capacity so at the rated maximum current the battery won’t last too long. It’s perfect for those quick little test circuits where you don’t want to drag out a power supply.