Arduino Pro Mini Power Supply

Powering an arduino pro mini 5v and a 3 3v nrf24l01 transceiver from one small battery.

Arduino pro mini power supply.

Customzing the arduino mini pro 3 3v 8mhz. Burn the program to pro mini through ide. Eagle files in zip schematics in pdf. Is anybody there make transformerless power supply.

First let s assume a circuit design that uses something like the arduino pro mini. 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. What is the the max current for power up arduino pro mini 5v 16mhz.

Arduino pro mini 2d model. The lowest reference current consumption has the arduino pro in the 3 3v version with 5 13 ma. Oring for arduino mini pro. The maximum current draw of the arduino is 200ma.

Provide the power and attach the necessary peripherals. 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. 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. You can build your own board using the follwing files.

After reset the control executes the program and provides the desired output. Without a lot of work it s easy to save power with the arduino pro mini. However you can still use this as a guide to upload code for arduino pro mini 5v 16mhz. There is a voltage regulator on board so it can accept voltage up to 12vdc.

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. To upload adjust the processor in the arduino ide when uploading code to the 5v version board. Arduino pro mini is open source hardware. 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.