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Questions tagged [rx-pin]

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2answers
139 views

Alternative Rx/Tx Pins for Arduino Uno and Pro Mini

Do they have specific pins that is best to be use as Rx/Tx pins (aside from D0 and D1)? If so, what makes them special? edit: What pin feature i should look out for when choosing the rx/tx pin? Is ...
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1answer
74 views

ESP8266 + HC-05 on same arduino

I'm absolutely new to arduino, so please excuse me if this is a noob question. I want to use a ESP8266 esp-03 Wifi module with a HC-05 bluetooth module together with my arduino uno. Unfortunately ...
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2answers
53 views

Arduino Uno won't upload code and overheats

We are using an Arduino Uno R3 connected via USB to a computer. The main problem is that we can't upload any code to the board. We get this error in the Arduino IDE console: avrdude: ser_open(): ...
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1answer
141 views

RX and TX pin in Arduino Uno

I have LED Cube Project, and I want to activate the LED with My Android apps (Bluetooth). The LED Cube used A0-A5 and D0-D13 Pins, and the Bluetooth need RX and TX (D0, D1). Where I can put the RX ...
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1answer
64 views

Arduino Mega Pins for SoftwareSerial (vs. AltSoftSerial)

I am currently looking at using an Arduino Mega to build a MIDI Receive box that will then pump the data over USB, but am having design issues/uncertainties with the Arduino's receiving end. I am ...
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1answer
448 views

Sharing serial Rx to read a push button on ESP8266-01

I'd like to know if it's possible, and if so how to use the serial Rx pin in a shared way to read a push button? I've seen people using it in sort of a dedicated way but my idea is to use it ...
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1answer
822 views

When I see the red RX LED flash I am wondering if it means there is an error? [closed]

Each time I press a particular button in my circuit the red RX light flashes briefly. I have been having trouble with making this button perform the command it should, I and am wondering if the RX ...
1
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1answer
107 views

Easy way to upload sketches using MIDI (without RX pin removed)

I noticed when I use sketches with MIDI (using RX/TX), before uploading I have to remove every time the RX wire ... is there an easy way to prevent this? (I'm thinking about making a push button/...