When you tapĪ zip file of Arduino 1.8.12 version will be directly downloaded, and you only need to unzip it to finish installation. Select versions you want to download, the latest version could be downloaded.Īlternatively, you could select previous release.Ĭlick to download an installer of Arduino 1.8.12 version,which needs to be installed manually. When getting this control board, we need to install Arduino IDE. See the attachInterrupt() function for details. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. External Interrupts: D2 (interrupt 0) and D3 (interrupt 1).Used to receive (RX) and transmit (TX) TTL serial data. Serial communication: 0 (RX) and 1 (TX).USB-to-serial port chip, converting the USB signal into Serial port signal.Ĭonvert the external voltage input DC7-12V into DC5V, then transfer it to the processor and other elements. Input an external voltage DC7-12V to power the board. The Nano has 8 Analog Pins, labeled A0 through A7. Reference external voltage (0-5 volts) for the analog input pins. Also upload the program to the board via USB port. The board can be powered via Mini-B USB connection. The board’s microcontroller is ATMEGA328P-AU. This information can be checked at the top surface of IC. Before you load a new program on the Arduino IDE, you must know what IC is on your board. You can regard it as the brain of your board. The function is the same as RESET button.Įach board has its own microcontroller. Or used as digital output pin to drive different modules like LED, relay, etc. These pins can be configured as digital input pin to read the logic value (0 or 1). It has 14 digital input/output pins D0-D13 (of which 6 can be used as PWM outputs). When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. There is a built-in LED driven by digital pin 13. Power up the control board, LED on, otherwise LED off. When control board communicates via serial port, send the message, TX led flashes. Onboard you can find the label: TX (transmit) When control board communicates via serial port, receive the message, RX led flashes. Onboard you can find the label: RX(receive ) When connecting to PC, program the firmware to ATMEGA328P-AU. In fact, slave the output devices under the SPI bus host. It is often called the SPI (serial peripheral interface) and can be considered an "extension" of output. ICSP is the AVR, an micro-program header consisting of MOSI, MISO, SCK, RESET, VCC, and GND. ICSP (In-Circuit Serial Programming) Header Here is an explanation of what every element and interface of the board does: The power can be supplied through USB cable, port 5V, GND(DC 5V), as well as Vin GND (DC 7-12V).ġ4 (D0-D13) (of which 6 provide PWM output) The firmware of this chip is burnt well before delivery, therefore, you don’t need to burn the firmware. What’s more, you can burn the firmware for Atmega328P-Au through the built-in ICSP port. When using the Mini USB cable, we can use the VIN GND (DC 7-12V) to power. Since this chip we burn firmly in front of the factory, it is generally not available. The ICSP interface is used to burn firmware to Atmega328P-Au. It also has a 14 digital input / output interfaces (6 of which can be used as PWM output), 8 analog input interfaces, 1 16MHz crystal oscillator, 1 mini USB port, 1 ICSP interface, and a reset button. It is as same as the official Arduino Nano in addition to driver file and USB to serial chip (CH340G). Unfortunately the old way of free downloads of the distribution with a request for donations resulted in something like a 0.01% donation rate and Fritzing was dying.The processor core of Keyestudio Nano CH340 is atmega328p-au. One late issue I will point out, is that while Fritzing is open source and you are free to build it from source (which is quite difficult), in order to support the forum, websites and development, there is now a pay wall (which is causing a lot of concern) for the download of Fritzing. Making Fritzing parts is a fairly complex process (it took me a couple of years and a lot of help from here to learn to do it) so if you need changes or parts that don’t exist yet, feel free to ask. In this particular case I am the author of the part and you are free to use it for whatever you like. In general all the parts are (I believe anyway) licensed under the Creative commons license.
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