Arduino advanced study kit walks you through the basics of using the Arduino in a hands-on way. You'll learn through building several creative projects. The kit includes a selection of the most common and useful electronic components with a book of 28 projects. Starting the basics of electronics, to more complex projects, the kit will help you control the physical world with sensor and actuators.
Keyestudio Uno REV4
Keyestudio REV4 is a microcontroller board based on the ATmega328. 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 battery to get started.
The REV4 differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 programmed as a USB-to-serial converter.
- 1. Microcontroller core: AVRmega328P-PU ( Processing speed 20MIPS)
- 2. Working voltage: +5V
- 3. External input voltage：+7V~+12V（suggest）
- 4. External input voltage ( extremum ): +6V≤ Vin ≤ ＋20V
- 5. Digital signal I/O interface: 14 ( 6 PWM input interface)
- 6. Analog signal input interface: 6
- 7. DC I/O interface current: 40mA
- 8. Flash capacity: 32KB( other 2k used in hootloader)
- 9. SRAM static storage capacity
- 10. EEPROM storage capacity: 512bytes
- 11. Clock frequency：16MHZ
More resources found here