Hi all, I am trying to build a standalone arduino. I am using a 9v 300ma wall power supply. In order to get this down to 5v I have connected it with a 7805 regulator I picked up at radioshack. The problem is, when I check the voltage with a multimeter, the output voltage is 8 volts! I then checked …

7805 Regulator with Standalone Arduino

Topic		Replies	Views
Voltage regulation issues on Arduino? Troubleshooting	3	1734	May 6, 2021
noob power management questions: 7805s etc Interfacing	8	2028	May 6, 2021
Dead Arduino 3rd Party Boards	9	3973	May 6, 2021
power supply for stand alone arduino General Electronics	6	1240	May 6, 2021
Standalone Arduino power supply question Frequently-Asked Questions	4	1865	May 6, 2021