Raspberry Pi 3 Gpio Voltage

These properties are set for the gpio block as a whole not on a pin by pin basis.

Raspberry pi 3 gpio voltage. Usage depends on what you re doing with the pi. These allow a massive range of sensors motors leds and accessories to be connected to the pi. Raspberry pi 40 pin gpio header. The 3 3v supply is limited to 50ma.

Hence if connecting these pins to 5v or higher without level conversion circuitry is a bad idea and will damage your pi. The raspberry pi gpio s use 3 3v logic levels and are directly connected to the microprocessor chip. The majority of raspberry pi models use the same 40 pin header. The recommended amount is between 700ma for a raspberry pi model a and up to 2 5a for a raspberry pi 3 model b see power supply requirements in the magpi issue 56 page 39.

The raspberry pi boards typically draw much lower amounts between 200 and 500ma. The raspberry pi has two i2c connections at gpio 2 and 3 sda and scl are for i2c0 master and physical pins 27 and 28 are i2c pins that enable the pi to talk to compatible hat hardware. Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. The header provides 5v on pin 2 and 3 3v on pin 1.

Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes. Gpio header power pins.