UNO Board CH340 clone

It has an Atmel SAM3X8E ARM Cortex-M3 chip running at 84Mhz with a factory-loaded bootloader with 54 digital input / output (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UART (hardware serial ports).
The board includes a USB connector, a SPI port, a reset button, a button erase and some status LEDs.
Atmega16U2 programmed as a USB / Serial converter for power, simply connect it to a computer with a USB cable or power with a power adapter and DC connector.
Characteristic:
Operating voltage: 3.3V
Input voltage (recommended): 7-12V
Digital I / O Pins: 54 (12 PWM outputs)
Analog input 12 pins
2 x DAC
2 x TWI
4x UART
DC current per DIGITAL I / O pin 130 mA
Flash: 512 KB

It has an ATMega328P chip running at 16Mhz with a factory loaded bootloader
Characteristic:
- Microcontroller: ATmega328
- Operating Voltage (logic level): 5V
- Input Voltage (recommended): 7-12V
- Digital I / O Pins: 14 (6 PWM outputs)
- Analog Inputs: 8 (A0-A7)
- DC Current per Pin I / O 40 mA
- Flash Memory: 32 KB (2 KB used by the bootloader)
- SRAM: 2 KB
- EEPROM: 1 KB
- Clock Frequency: 16 MHz
- USB Communication - CH340
- Dimensions: 18 mm x 44 mm

It has an Atmega328P chip running at 16Mhz with a factory loaded bootloader.
The Uno R3 module has all connectors than the Arduino Uno R3 and is compatible with all Arduino shields.
Plate UNO R3 CH340 + Arduino compatible switches features:

- ATmega328P chip at 16MHz with crystal external quartz
- ATmega328P microprocessor with socket
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6- 20V
- Clock speed: 16 MHz
- Digital I / O Pins: 14
- Analog input pins: 6
- DC current per I / O Pin: 40 mA
- DC Current per Pin 3.3V: 50 mA
- Flash32 KB of which 0.5 KB are used by the bootloader -Atmega328
- SRAM 2 KB - Atmega328

ST-LINK V2 Debugger / chip programmer for STM8 and STM32, supports SWIM and JTAG Serial Wire interfaces.

This little board is simply a I2C board to Qwiic converter. It pretty much enables any device with I2C connectors to work with Qwiic system. It has two Qwiic ports - both of them served with the same I2C bus. You simply stick the board on your I2C board and get additional two Qwiic ports. It is as easy as it sounds

Huskylens PRO is an easy-to-use AI camera and vision sensor. DFrobot Huskylens (SEN0336) is equipped with multiple functions, such as face recognition, object tracking, object recognition, line tracking, colour recognition and label recognition (QR code).

The STM32F103C8T6 has characteristics that surpass the traditional Arduinos type Atmel
We go from a speed of execution 16 MHz to 72 MHz and 8-bit to 32-bit. The module is supplied in a soldered version.

It has an ATMega32U4 chip running at 16Mhz with a factory-loaded bootloader. It does not include pins so we can solder only the pins we need. Characteristic: - Microcontroller: ATmega32U4
- Operation: 5V
- Power (max): 5-12V
- Total I / O pins: 20
- PWM pins: 5
- Analog pins: 12
- Maximum current of I / O pins: 40 mA
- Maximum current of pin 3.3V: 50 mA
- Flash memory: 32 KB (4 KB used by the bootloader)
- SRAM: 2.5 KB
- EEPROM: 1 KB
- Speed: 16 MHz
- external interrupt
- TWI / I2C, UART, SPI interfaces
- Dimensions: 18x33mm
- Weight: 30 grams

It has an Atmega2560 chip running at 16Mhz with a factory loaded bootloader with 54 digital input / output pins (from which 14 can be used as PWM outputs) and 16 analog inputs, 4 UART (hardware serial ports). The board includes a USB connector, an ICSP port, a reset button and some status LEDs. Atmega16U2 programmed as a USB-to-serial converter. Simply connect it to a computer with a USB cable or power with a power adapter and DC connector.