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Examination of the Arduino millis() Function

Examination of the Arduino millis() Function -- this can be gleaned by crossreferencing the Arduino core code with the ATMega328p datasheet, but is very useful in this concise article

from DX.com

Keyestudio UNO R3 Board for Arduino - Black + Yellow

Keyestudio UNO R3 Board for Arduino - Black + Yellow. Keyestudio UNO R3 BOARD Overview: Keyestudio Uno R3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC…

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The A&B Mini is a microcontroller board based on the ATmega328AU (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. http://www.muav.in/products-page/drone-electronics/atoms-bytes-products/a-b-mini-board/

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from DX.com

Geeetech Iduino UNO 328 with Atmega328p-pu Compatible with Arduino IDE - Red

Geeetech Iduino UNO 328 with Atmega328p-pu Compatible with Arduino IDE - Red. The Iduino Uno is a microcontroller board based on the ATmega328p (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or…

The low-power Atmel 8-bit AVR RISC-based microcontroller featuring 32KB self-programming flash program memory, 2.5KB SRAM, 1KB EEPROM, USB 2.0 full-speed/low speed device, 12-channel 10-bit A/D-converter, and JTAG interface for on-chip-debug. The device achieves up to 16 MIPS throughput at 16 MHz. 2.7 - 5.5 Volt operation. $6.04