This RVFM breadboard power supply provides both 3.3 and 5V DC to suit all popular microcontrollers such as the Arduino. The board will accept 6.5 to 12V DC input. It provides two regulated outputs which can be jumper selected to be 3.3V, 5V or Off. There is a USB A socket so that the device is ideal for powering development boards such as the Arduino. There are two sets of header pins which plug into the breadboard allowing you to minimise the number of tie points you use or to maximise the stability of the PSU. More header pins are available on the top of the board if you need to use flying lead connections. The board is equipped with an on/off switch and a power indicator LED.
Two independent outputs at either 3.3V or 5V DC
DC input from 6.5V to 12V
Maximum 700mA output
Current limiting and over temperature protected
Dimensions 53 x 35mm (2.09 x 1.38in)
Please note: Suitable for use with 55mm wide breadboards only (see 34-0671).
Q. Hi,
Would this be suitable for use with a 12v leisure battery ? When fully charged the battery shows 13.5v, so this is a little over the recommended 12v input. It's for use with a Mega 2560 on a mobile test rig. No datasheet available so I'm unsure of input tolerances.
Keith
A. Hi Mari, thank you for your question. The manufacturer only states a maximum 12V so it may be worth adding a protection diode to only allow 12V in case it damages the unit. We would suggest 50-0478.
Reviews
breadboard power supply
Reviewed by: Mr george parkinson - Wednesday, September 28, 2016
It's what I wanted - fitted perfect to the breadboard I had, a bit more on how to use it may have been nice as in "these are the jumpers to connect to do ..."
other than that and a wee bit of experimenting I an good to go
Handy Power Supply
Reviewed by: Richard Patient - Thursday, August 14, 2014
I came across this power supply board while browsing through the "breadboard" section of the web site. It looked like a great way to add power to my prototypes and would make use of one of the numerous 12V power "bricks" I seem to have acquired over time. It would also cost less than a bench power supply when all I usually require is 3.3V and 5V and minimal current.
The good points are that the voltages are stable and by using jumpers you can choose if you have 3.3 or 5 volts (or "off") at either end of the board. There is an on/off switch next to the input socket for the whole board and a clear green LED when the power is On.
You need to be aware that the input socket requires positive centre pin. Also, I suspect that the USB socket is for providing 5V OUTPUT from the supply as it is an "A" type socket - and it successfully powered my Arduino board via a USB lead. Finally, the power pins are spaced slightly too far apart for mounting on any of my breadboards without a slight bending of the pins or the circuit board. The two inner edge pins are 41mm apart if you want to check against your own board.
Definitely a good and inexpensive way to quickly power a breadboard project, or a USB powered device.
