puddlehaven
Member
Hi,
I'm playing with a WIZ810MJ module that requires a 3.3V power supply. I'm wondering what I need to convert the 5V power supply on my breadboard to the 3.3V that the module needs.
If I was building a 3.3V supply that took power from a wall wart I'd use a 3-terminal regulator, a large filter capacitor, and a couple of small filter capacitors. But I'm not building this supply from a wall wart, I'm using the local 5V supply.
If I build the 3.3V supply to take its input from the 5V supply, what do I need in the way of filter capacitors? Or do I need any?
Thanks for your help,
Chuck
(By the way, level shifting from the 5V Picaxe to the 3.3V WIZnet module shouldn't be a problem, the W5100 chip lets you put 5V on the input pins without causing a problem.)
I'm playing with a WIZ810MJ module that requires a 3.3V power supply. I'm wondering what I need to convert the 5V power supply on my breadboard to the 3.3V that the module needs.
If I was building a 3.3V supply that took power from a wall wart I'd use a 3-terminal regulator, a large filter capacitor, and a couple of small filter capacitors. But I'm not building this supply from a wall wart, I'm using the local 5V supply.
If I build the 3.3V supply to take its input from the 5V supply, what do I need in the way of filter capacitors? Or do I need any?
Thanks for your help,
Chuck
(By the way, level shifting from the 5V Picaxe to the 3.3V WIZnet module shouldn't be a problem, the W5100 chip lets you put 5V on the input pins without causing a problem.)