Micro Controller by price to performance

Lien	ELEGOO UNO R3	Arduino Uno Rev3	Arduino Mega 2560 Rev3	Raspberry PI Pico	HiLetgo ESP-WROOM-32 ESP32 ESP-32S	Teensy 4.1
Spécifications	* ATmega328P microcontroller * Input voltage - 7-12V * 5V Electric current: 500MA * 3.3V Electric current: 50MA * 14 Digital I/O Pins (6 PWM outputs) * 8 Analog Inputs * 32k Flash Memory * 16Mhz Clock Speed Component listing 1pcs ELEGOO UNO R3 Development Board 1 pcs USB cable	MICROCONTROLLER ATmega328P OPERATING VOLTAGE 5V INPUT VOLTAGE (RECOMMENDED) 7-12V INPUT VOLTAGE (LIMIT) 6-20V DIGITAL I/O PINS 14 (of which 6 provide PWM output) PWM DIGITAL I/O PINS 6 ANALOG INPUT PINS 6 DC CURRENT PER I/O PIN 20 mA DC CURRENT FOR 3.3V PIN 50 mA FLASH MEMORY 32 KB (ATmega328P) of which 0.5 KB used by bootloader SRAM 2 KB (ATmega328P) EEPROM 1 KB (ATmega328P) CLOCK SPEED 16 MHz LED_BUILTIN 13 LENGTH 68.6 mm WIDTH 53.4 mm WEIGHT 25 g	Board Name Arduino® Mega 2560 Rev3 SKU A000067 Microcontroller ATmega2560 USB connector USB-B Pins Built-in LED Pin 13 Digital I/O Pins 54 Analog input pins 16 PWM pins 15 Communication UART Yes, 4 I2C Yes SPI Yes Power I/O Voltage 5V Input voltage (nominal) 7-12V DC Current per I/O Pin 20 mA Supported battery 9V battery Power Supply Connector Barrel Plug Clock speed Main Processor ATmega2560 16 MHz USB-Serial Processor ATmega16U2 16 MHz Memory ATmega2560 8KB SRAM, 256KB FLASH, 4KB EEPROM Dimensions Weight 37 g Width 53.3 mm Length 101.5 mm	21 mm × 51 mm form factor RP2040 microcontroller chip designed by Raspberry Pi in the UK Dual-core Arm Cortex-M0+ processor, flexible clock running up to 133 MHz 264KB on-chip SRAM 2MB on-board QSPI Flash 26 multifunction GPIO pins, including 3 analogue inputs 2 × UART, 2 × SPI controllers, 2 × I2C controllers, 16 × PWM channels 1 × USB 1.1 controller and PHY, with host and device support 8 × Programmable I/O (PIO) state machines for custom peripheral support Supported input power 1.8–5.5V DC Operating temperature -20°C to +85°C Castellated module allows soldering direct to carrier boards Drag-and-drop programming using mass storage over USB Low-power sleep and dormant modes Accurate on-chip clock Temperature sensor Accelerated integer and floating-point libraries on-chip	The ESP32 integrated with Antenna switches, RF Balun, power amplifiers, low-noise amplifiers, filters, and management modules, and the entire solution occupies the least area of PCB. 2.4 GHz Wi-Fi plus Bluetooth dual-mode chip, with TSMC Ultra-low power consumption 40nm technology, power dissipation performance and RF performance is the best, safe and reliable, easy to extend to a variety of applications.	- 10/100 Mbit DP83825 PHY Ethernet - USB Host (5 Pins w/ Power Management) - Micro SD Socket SDIO (4 Bit Data) - 35 PWM Pins - 18 Analog Inputs - 8 Serial Ports - 8 Mbyte Flash Memory - QSPI Memory (2 Chips Plus Program Memory) - 42 Breadboard Friendly I/O - 7 Bottom SMT Pad Signals - 6 SD Card Signals - 55 Total IO Pins
Prix	$16.99	$25.30	$35.52	$4	$10.99	$48.20
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