![]() ![]() AREFĪREF is the analog reference pin for the A/D Converter. Note that PC6…4 use digital supply voltage, VCC. If the ADC is used, it should be connected to VCC through a low-pass filter. It should be externally connected to VCC, even if the ADC is not used. AVCCĪVCC is the supply voltage pin for the A/D Converter, PC3:0, and ADC7:6. GNDĭigital Supply Ground for the operation of the chip. Arduino UNO uses the PDIP package of ATmega328P and Arduino NANO uses the TQFP Package of ATmega328P.Īrduino NANO Pin Mapping with ATmega328P Pin Description ATmega328P VCCĭigital Supply Voltage for the operation of the chip. What are the alternate function of each Arduino pin?īelow are the two most popular packages of ATmega328P that are sold and used in Arduino Board.How many ports are there in ATmega328p?.What are the pin configuration of AVR ATmega328p chip?.What are the different pins in Arduino UNO?.The below article shows and discusses the peripheral available in each port pin and their alternate functions. Most port pins have alternate functions in addition to being general digital I/Os. The Arduino style pinout is mapped with the chip style pinout and the alternate functions are described. This section discusses the Atmega328p and Arduino Pinout and Mapping. These support endless possible applications for this small and affordable package.Īrduino Tutorial Embedded C Register Level Arduino Master ClassĪlso visit the Release Page for Register Level Embedded C Hardware Abstraction Library and Code for AVR. A wide range of flexible I/O options includes I2C, SPI, and uniquely Programmable I/O (PIO). Raspberry Pi Pico RP2040 Designed by Raspberry Pi, RP2040 features a dual-core Arm Cortex-M0+ processor with 264KB internal RAM and support for up to 16MB of off-chip Flash.Atmel The popular, tiny and low-cost 8-bit AVR microcontrollers from Atmel. ![]()
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