11/20/2023 0 Comments Arduino pro mini 3.3v![]() Pinout available on our support forum here. It has 14 digital input/output pins (of which 6 can. This product is manufactured by Deek-Robot and is derived from the SparkFun(TM) Pro Mini reference design which was released under the Creative commons Attribution-ShareAlike 3.0 licence.ĭigital I/O Pins: 14 (of which 6 provide PWM output)įlash Memory: 32 KB (of which 2 KB used by bootloader) The Arduino Pro Mini 3.3V/8MHZ is a microcontroller board based on the ATmega328. Please note that we currently sell two versions of this board, a 5V/16MHz version (HCARDU0059) as pictured above, and a 3.3V/8MHz version (HCARDU0081). The pin layout is compatible with the Arduino Mini. The board comes without pre-mounted headers, allowing the use of various types of connectors or direct soldering of wires. Its blue Its thin Its the Arduino Pro Mini SparkFuns minimal design approach to Arduino. Please note that there are two versions of the board: one that operates at 5V (like most Arduino boards), and one that operates at 3.3V. The Arduino Pro Mini is intended for semi-permanent installation in objects or exhibitions. There is a voltage regulator on board so it can accept voltage up to 12VDC. A six pin header can be connected to an FTDI cable to provide USB power and communication to the 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. These usually have weak LDOs (I had some bad experience with also) that barely can feed a Pro Mini, but not added peripherals. ![]() I assume it feeds 3.3V through its LDO to your Arduino Pro Mini 3.3V. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. I would need a link or a schematic of your USB to Serial converter to know for sure. ![]() The Arduino Pro Mini is a microcontroller board based on the ATmega328.
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