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Questions tagged [arduino-uno-smd]

The Arduino Uno SMD is a "branch" of the Arduino Uno board that has a SMD (surface mount chip) that is smaller and cheaper, but not replaceable. It was developed when there was a shortage of ATMega328-PUs. It acts the same way as a "standard" Arduino Uno.

The Arduino Uno SMD is a "branch" of the Arduino Uno board that has a SMD (surface mount chip) that is smaller and cheaper, but not replaceable. It was developed when there was a shortage of ATMega328-PUs. It acts the same way as a "standard" Arduino Uno.

From the Arduino Uno SMD page:

The Arduino Uno SMD is a version of the Arduino Uno, but uses an surface mount version of the Atmega328P instead of the through-hole version. This version was made in response to a shortage in supply of the through-hole Atmega328P. The board is based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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.

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How high of a baud rate can I go (without errors)?

The standard is 9600 baud. That's just the standard. Using a Arduino Uno SMD R2, what is the highest practical baud rate I can achieve? Bonus points for the audacious: how would you go about creating an error checking mechanism and then increasing…
Anonymous Penguin
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How cold or hot can my Arduino Uno get?

The Arduino Uno Page doesn't say the temperatures that it can operate in. I'm thinking about placing it outdoors. How can I make sure my Arduino Uno is safe in weather that can reach -20 to 105 degrees Fahrenheit? (-26 to 40 degrees Celsius).
Anonymous Penguin
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How can I sense when someone is sleeping with my Arduino?

Ignore the stalker-like title. I am thinking about creating a project with Arduino that can sense you sleep habits, when you're asleep, and how much you sleep. It would be convenient to not have to turn it on/off at night; it should know how to do…
Anonymous Penguin
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USB mouse/keyboard passthrough feasible?

I'm looking to achieve the following: USB HID Mouse (or Keyboard) -> [ Arduino device ] -> PC | `-> Internet Basically, I want to connect a keyboard or mouse to an…
David Titarenco
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How do I Continuity Test/Troubleshoot a Linksprite RS232 V2 Shield?

I have a Linksprite RS232 v2 adapter (which uses a MAX232 chip), as per this image. I have soldered on the headers and tested the pins to make sure there are no solder bridges. I have set the jumpers so that D2 is set to TX and D3 to RX. However, I…
Agi Hammerthief
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Are there different revisions of Arduino Uno SMD?

I know there are different revisions of the Arduino Uno itself, but are there any revisions of the SMD? If they are is SMD R2 identical to through-hole R2? I have a board marked R2 SMD and I am wondering if that is the only version that they…
Anonymous Penguin
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How do I use the additional serial ports on an Arduino UNO R3 clone?

I bought this Arduino clone over eBay. It seems to have an extra SPI and serial ports. How do I use these?
Lord Loh.
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TQFP Atmega328pu-th cant upload sketch sync error (breadboard)

So I have a USB to ftdi connected to my qtfp 32 socket trying to upload a sketch but I get a sync error , as far as I am aware I have uploaded the sketch correctly
jamie ward
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Setup of Arduino Uno as ArduinoISP for programming attiny45

I have an Arduino Uno SMD and an attiny45, which I want to use as a sensor communicating via i2c. For a first step in finding out how to work with the attiny45 I just want to use the attiny as controller for a blinking led. When first setting up the…
Matthias Jung
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Custom build of arduino on a pcb

I am running my Arduino based from the ATMEGA328P-PU chip from a 4v battery with this setup: Everything works great and now I will like to make my project permanent building a custom PCB from easyeda.com. Anyways this question is not about how to…
Tono Nam
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How to use ESPAsyncWebServer with SoftwareSerial communicating ESP01f

I'm creating a web server with using host.com/?ll="some". But I read that I can use for it ESPAsyncWebServer for this things. And how can I use it without flashing esp? If possible give me link to the libraries.
TheGamerCoder
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RGB LED strip 100m

Hello all, I'm working on RGB LED strip SMD 5050 5m This all setup is working on 12v 2A with about diagram. I want to use same connection with 100m of LED strip using Arduino. Please support regarding this topic. H/W details : Arduino…
Dr geek
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The Arduino IDE can’t find my Arduino Uno

My Arduino has all of its LEDs on. The Rx, Tx and L LEDs are all on and my computer can’t see it (it's an SMD edition).
Lasse Houtenbos
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LCD Weather Station - "Press To Start" Function

I've been trying to make a weather station using a I2C LCD Display and a DHT11, I know, the DHT11 is a bit low res and all that, but it came with the kit I ordered, so it's okay. However, I'm trying to have it display like a "title" screen, and…
Eirik Medlie
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Starting Off Low-Level Port Access

   I'm trying to teach myself some low[er] level code, but I just can't get it to work. I've tried OR-ing stuff in, AND-ing stuff in, and just straight up defining stuff, but it's not blinking! What am I doing wrong here? I am using an Arduino UNO…
nick5435
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