Arduino Uno – Setup and Programming Tutorials Interface almost anything; the best choice for beginners – this is the Arduino UNO board. Using an ATmega328 microcontroller and 14 I/O pins, Arduino UNO is one of the most popular development boards in robotics and electronics as well. Go to the Arduino download page and download the latest version of the Arduino software for Mac. When the download is finished, un-zip it and open up the Arduino folder to confirm that yes, there are indeed some files and sub-folders inside. Contents • • • • Hardware requirements • An Arduino(I used an Arduino UNO, but most Arduinos should work for this) • The serial component you want to communicate with through USB.(I used a TinySine Serial Bluetooth Module 4.0 BLE w/ iBeacon support) • A breadboard • Some breadboard cables Connecting the Uno to the serial module For this project I used a TinySine Serial Bluetooth Module 4.0 BLE w/ iBeacon support. Any other serial module with RX and TX pins should work for this project though. My bluetooth module works with voltages between 3-6 V. Because my Arduino Uno works with 5 V, I’ll be connecting the module’s VCC pin to the 5V port. Follow the table below for the proper connections. Connections between the Uno and the serial module Arduino Uno pins Bluetooth Serial Module Digital pin 0(RX) RX Digital pin 1(TX) TX 5V* VCC GND GND *Make sure you know what voltage your module works at, some modules works on 3,3 V for instance. If it does work on 3,3 V, connect the module to the 3,3 V pin on the Arduino. Using the module with the wrong voltage could permanently damage your module! How do i pick from a list in excel for mac. Isolating the processor from the IO-pins There is one more simple connection you need to make. Connect the RESET pin on the Arduino, to the GND pin on the Arduino. On some of the smaller Arduino’s, like Arduino Nano, the RESET pin is labeled RST. What this does is isolates the Atmega328p CPU from the IO-pins. Another solution is actually physically removing the Atmega328p processor from the socket on the Uno, but because a lot of Arduino models doesn’t have that capability, the isolation way is the best practice. Install my passport for mac. Doing basic serial read/write Now connect the USB-cable to your computer and open up the Arduino Software. In the menu bar go to Tools –> Port and choose your Arduino in the list. Choose the one with the port starting with tty, not cu. In Mac and Linux the Arduino model should be identified in the menu list, but in Windows you need to open up Device Manager and find the COM-port to your Arduino. Windows: Device Manager – in this case the Arduino was on COM8 Now open up Serial Monitor by going in Tools –> Serial Monitor. In Serial Monitor you need to choose the right baud rate. ![]() What you should choose depends on your module. Check the datasheet or product specification of your component to check what baud rate it runs with. My bluetooth runs on 9600 bps, so I chose 9600 in Serial Monitor. To test if it now works, run an AT command to see if your module returns anything. My bluetooth module can receive an “AT” and responds thereafter with “OK”. Whatever serial software you want to use should work with this setup too! If you have any questions feel free to ask me by using the page or by commenting below. Arduino Uno is a microcontroller board based on the ATmega328P (). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, 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. You can tinker with your UNO without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again. 'Uno' means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards. You can find your board warranty informations.
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