برد آردوینو نانو - IC CH340

موجودی: در آستانه اتمام موجودی
MODEL: ARDUINO NANO WITH IC CH340

برد آردوینو که با قابلیت اجرای برنامه و پروگرم مطابق نیاز برنامه نویس را فراهم میکند. قیمت مناسب ابعاد کوچک و سهولت پروگرم و راه اندازی از جمله مشخصات برد آردوینو نانو IC CH340 می باشد.

استفاده از دو چیپ قدرتمند میکروکنترلر ATMEGA328 و CH340 جهت ارتباط USB از جمله ویژگی های این برد می باشد

The Nano CH340 R3 board is similar to the genunine Arduino Nano board, described on the original Arduino website here . The board uses same type of Mini-B USB connector, same side connectors and 6-pin SPI connector, as well as the Atmel ATmega328P microcontroller in the 32-TQFP package. There are also 4 LEDs – Power LED, LED connected to digital output pin D13, and two LEDs showing status of the RxD and TxD communication lines.

To provide +5.0 V Vcc power supply, the board uses LM1117-5.0 SOT-223 linear stabilizer 5.0 V (compared to original UA78M05), with slightly higher current (800 mA vs. 500 mA of original UA78M05) and lower drop-out voltage (typ. 1.2 V vs. 2.0 V for UA78M05).

To facilitate the USB communication and to provide 3.3 V output, the board uses USB communication circuit CH340 in SOP-16 package (instead of FT232RL used on the genuine Nano R3 board), manufactured by several Chinese companies. The CH340 IC requires installation of driver software, which was covered and explained many times already, so I will not repeat this information. With installed driver, communication with Arduino (IDE) is clear and straightforward.

To switch between VIN power supply (6-12 V) and USB power supply, the board includes a Schottky diode with low forward voltage. Most of the boards I got seems to be using the Vishay Semi SD101CWS diode (Vf 0.6 – 0.8 V at 20 mA, S4 SMD marking code).