Based on lm 317 lm358.
Arduino lab power supply.
Variable voltage 0 25v presize current limiting mode.
A voltage regulator can be used to supply fixed 5v input to power up the arduino it is possible to power up the arduino using the 5v and gnd pins provided that the input given is steady and regulated 5v.
Chassis i purchased a plastic project chassis measuring 165mm x120mm x 68mm but of course you can use any box capable of holding your components.
Perfect for my needs.
This variable power supply unit contains button interface for the voltage programming.
0 01 according to the specs of the power supply circuit kit.
The working and circuit is explained below.
Arduino uno power supply 5v 100uf capacitor 2 pieces button 2 pieces 1kω resistor 3 pieces 16 2 characters lcd 2n2222 transistor.
Atmel studio 6 2 or aurdino nightly.
Arduino lab power supply.
2 thoughts on diy arduino variable lab bench power supply 0 30v cc cv m3vuv says.
Capable of supplying up to 10a at up to 24v or 5a on each channel.
February 29 2020 at 4 01 am great work.
Here are some of the other items you will need.
The 5v standby cable is the purple one which will power the arduino and the lcd and also the usb ports so even when the output rails are turned off the monitoring system will still be active and looking for an input on the interrupt pin for the power on button and you can charge your phone without having the entire power supply turned on.
I made a custom meter circuit shield for arduino able to measure up to 36v 4a with a resolution of 10mv 1ma that can be used for other projects also.
The power supply has the following features.