ATMEGA328P 8-bit Microcontroller 32KB In-system Flash 20MHz 28 pin IC

Specification:-

1. Supply voltage range: 1.8V to 5.5V
2. Embedded interface type :  I2C, SPI, UART
3. CPU speed: 20MHz
4. Program memory size: 32KB
5. RAM memory size: 2KB
6. Number of pins: 28 pin

Pro mini 5V 16Mhz with ATMEGA328P microcontroller chip board

Specification:-

1. Microcontroller: ATMEGA238P
2. Input voltage : 5V to 12V DC
3. Clock frequency: 16Mhz
4. Supports auto-reset
5. Over-current protected
6. Analog input/output pins: 8
7. Digital input/output pins: 14

UNO R3 CH340G development board with ATMEGA328P (SMD) microcontroller chip

Specification:-

1. Model name : UNO R3
2. Chip name : ATMEGA328
3. Operating voltage : 5V
4. Recommended voltage range : 5V to 12V
5. Analog input/output pins : 6
6. Digital input/output pins : 14 (of which 6 provide PWM output)
7. Clock frequency : 16Mhz

LilyPad 328 ATmega328P main board 16M compatible with Arduino

Specifications:-

1. Model type : Lilypad
2. Microcontroller chip : ATmega168 or ATmega328V
3. Operating voltage : 2.7V to 5.5V DC
4. Analog I/O Pins : 6
5. Digital I/O Pins : 14
6. PWM Digital I/O Pins : 6
7. Flash memory : 16KB

Uno+WiFi R3 AtMega328p+NodeMCU ESP8266 8mb Memory USB-TTL CH340G Compatible for Arduino UNO

Specification:-

• USB-TTL converter
• Logic Level: 5V
• Operating Supply Voltage: 5V
• Digital I/O Pins: 14
• Analog I/O Pins: 6
• Operating temperature: −40С°/+125С°