Seeeduino V4.3 (ATMega328P)
Seeeduino V4.3 is an Arduino-compatible board, which is based on ATmega328P MCU, Arduino UNO bootloader, and with an ATMEGA16U2 as a UART-to-USB converter. The three on-board Grove interface can make your board connect to over 300 Grove modules.
The update we've made from V4.2 to V4.3:
Change from ATMEGA328P-MU to ATMEGA328P-AU in V4.2 Replace the serial chip to cp2102
Arduino UNO bootloader
14 Digital I/O Pins (6 PWM outputs)
6 Analog Inputs
Arduino UNO-R3 Shield Compatible
Micro USB programming and power supply
3 on-board Grove connectors
3.3/5V system operation power switch
Seeeduino V4.3 is an Arduino-compatible board, which is based on ATmga328P MCU. There're so many Arduinos and Arduino-compatible boards in the world, and we think that Seeeduino V4.3 is one of the best Arduino boards. Seeeduino V4.3 is much more stable and easy-to-use with our special red design for Seeeduino family.
Seeeduino V4.3 is based on the Arduino UNO bootloader, and with an ATMEGA16U2 as a UART-to-USB converter, which means that the board can basically work like an FTDI chip. You can program the board via a micro-USB cable. Also, you can power the board via a DC Jack input, 7 to 15V is acceptable. There's a switch to choose the system supply voltage, 3.3V or 5V, which is very useful if you want to set the system to 3.3V to save power.
We have dedicated our time to help you get started with this sensor quickly and easily. Try the step-by-step example code to quickly get started with clear codes. We also collected 20 Awesome Arduino Projects in the community to help you get started if you do not know what to do with Seeeduino V4.3 when you first get it in hands.
Grove makes it easier to connect, experiment, and simplify the prototyping process. No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Not only are these open hardware, but we also have open-source software.
Finally, please also check Arduino Boards Selection Guide to compare processor, operating voltage, input voltage, clock speed, digital I/O, PWM, analog inputs, UART, Grove connectors, flash memory, and USB connectors for different Arduino boards!
Operating the chip at 16 MHz with 3.3 volts is beyond the specified maximum frequency "Safe Operating Area" for the ATmga328P chip. So when you switch the working voltage to 3.3V, it may not be safe. However, at room temperature, most chips work fine that way.
|Dimensions||115mm x78mm x25mm|
|3 on-board Grove connectors|
|DC Current per I/O Pin||40 mA|
|DC Jack Input||7v-12v|
|Flash Memory||32 KB|
|Clock Speed||16 MHz|
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Received two of them today. They are very nice looking board. I've not had a chance to actually test them out yet but so far so good.
The board is not correctly detected (Windows 7 and Windows 10) : just seen as a AtMega DFU. The product is not usable.
It looked ok on arrival. There is a red marking on the ATmega16u2.
But it does not work (both of them); neither the ATmega16u2 nor the Atmega328p have been programmed (no USB for download, no boot loader).
After programming both chips program upload is still impossible.
Please send checked replacements!
I really like this board. Especially the two I2C grove connectors. The only improvements would be to have a faster processor, more memory, and a more durable USB connector than the micro which doesn't handle the power requirements very well. I would like to see solder points for connecting a cable to the board directly when the USB connector fails, so the board is still usable.