Arduino Pro Mini Power Supply

Arduino pro mini is open source hardware.

Arduino pro mini power supply.

Arduino pro mini newbie question power supply. First let s assume a circuit design that uses something like the arduino pro mini. Customzing the arduino mini pro 3 3v 8mhz. Is anybody there make transformerless power supply.

Powering an arduino pro mini 5v and a 3 3v nrf24l01 transceiver from one small battery. The lowest reference current consumption has the arduino pro in the 3 3v version with 5 13 ma. The arduino pro mini can be powered with an ftdi cable or breakout board connected to its six pin header or with a regulated 3 3v or 5v supply depending on the model on the vcc pin. What component can i remove from the original circuit.

Can somebody put here scheme for power up pro mini 5v with transformerless adapter only 4 diodes to make ac to dc and other parts of electronic that is needed in scheme. However you can still use this as a guide to upload code for arduino pro mini 5v 16mhz. You can build your own board using the follwing files. Without a lot of work it s easy to save power with the arduino pro mini.

If you do not want to use any power saving modes and do not need a 5v supply you should word with the arduino pro mini 3 3v. The maximum current draw of the arduino is 200ma. There is a voltage regulator on board so it can accept voltage up to 12vdc. This tutorial was written originally written for the arduino pro mini 3 3v 8mhz.

To upload adjust the processor in the arduino ide when uploading code to the 5v version board. The arduino pro mini can be powered with an ftdi cable or breakout board connected to its six pin header or with a regulated 3 3v or 5v supply depending on the model on the vcc pin. Oring for arduino mini pro. Provide the power and attach the necessary peripherals.

It s unlikely that the arduino itself will draw 200ma but let s assume that between the arduino and the other devices connected to it they draw a total of 200ma. After reset the control executes the program and provides the desired output. In power down state running at 8mhz seems to consume as much power as at 1mhzhowever in active state running at 1mhz saves a lot of power 3 5ma to 1ma at 3 3v and around 500µa at 1 8v it is not possible to run at 1 8v and 8mhz to be able to use the battery as most as possible it is mandatory to run. Eagle files in zip schematics in pdf.