Questions tagged [arduino-pro-mini]
An Arduino Pro Mini is a small microcontroller derived from the Arduino Uno using the ATmega328. It is unique for its tiny size and the required external FTDI adapter.
275 questions
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Arduino connect programatically two wires of external 3.3V device
What is a missing puzzle in here, relay, transistor?
I would like to pull pin of external device to the ground programatically using arduino's digital pin.
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Help reducing dynamic memory usage with LoRa library
I have combined code that reads heart rate and SPO2 then sends the data using LoRaWAN. Using these 2 libraries that work well by themselves LoraWAN lib | MAX30102 lib. My board is an Arduino Pro or ...
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Arduino pulls i2c bus down
I am building an airplane. As a controller I am using a Raspberry pi 4. There are 3 sensors (MPU6050, QMC5883L, BME280) and arduino pro mini connected to the raspberry via i2c. When sending requests ...
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Arduino Freezes (probably because of I2C) - Need help to write robust script
Arduino Pro mini 3.3V stucks few hours after startup. After repowered, it begins to stuck within a few seconds. If I wait long enough before turning it on it stucks little later for example now it ...
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Motion-activated lights
I am attempting to follow this tutorial to light up a dark staircase with motion-activated LED strips. If my understanding of the tutorial is correct, essentially the Arduino's job is to power or ...
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Arduino Pro Mini doesn't automatically reset
I have an issue with my Arduino pro mini.
Yesterday, I uploaded a sketch a few times on the pro mini, with an FTDI adapter, and everything worked fine. Today I'm trying to re-upload a sketch, but now, ...
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Arduino Pro Mini doesn't align nor connect in fritzing
When using fritzing (0.9.6) I notice that the Arduino Pro Mini 3.3 V component doesn't align nor connect to breadboard pins like other components.
Is this a bug or a feature?
I've tried to wiggle the ...
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Trying to program a Led Counter Want a Led to flash every 5 minutes however it flashes twice every second (Noob) [closed]
Heres the code i've Wrote i feel like the issue lies in how ive used the if statement
int ledPinS = 13; //Classifies pin 13 as Connected to an LED
//Flashes every second
int ledPinM = ...
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AT 09 BLE module not transmitting data
I have recently started working with the Arduino Pro Mini 5v/16Mhz and an AT 09 BLE module for an IoT project. I am controlling the BLE module using Software Serial and am leaving the hardware serial ...
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Blew my arduino pro mini s4 named component
While working on my project I supplied 12v to my pro mini through raw input and then a s4 named component smoked and my pro mini stopped working . It didn't turn on either through vcc or raw. The ...
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LED does not blink - Arduino UNO+WiFi R3 ATmega328P+ESP8266 board
As I am learning the Arduino coding, I want to see if my program can turn on the LED light. I have tried all the things, but the code does not start the LED light I have installed on the board.
The ...
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RN42 Bluetooth HID KEYBOARD sketch by silverball
How can I use RN42 sketch by silverball
/*
RN42_HIDRaw_Arduino.cpp - Roving Netowrks RN42 Bluetooth HID raw library
Developed by Chris Leitner - 2012
This library is free software; you can ...
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Arduino with interrupts enters in a locking state
I am quite noobish with using the interrupts on Arduino and I am facing a strange problem. I am using an Arduino Pro Mini, a light sensor and an RTC module(DS3231) which has set 2 alarms, one at ...
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Rc switch library display received values only one times using serial monitor
I use Rc switch library to transmit and receive data. It works fine.
The part that sends the data is as follows :
#include <Arduino.h>
#include <RCSwitch.h>
RCSwitch transmitter = ...
user53266
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Why Can't I Program my Atmega168 Pro Mini?
I'm trying to program a Atmega168 Pro Mini 3.3V/8mhz I bought online. I followed a tutorial that walks through the steps of how to program a Pro Mini with an Arduino Uno. However, in their example ...
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Arduino Pro Mini is burned by 12v. Can I save it?
I have this Arduino Pro Mini clone (ATmega328) 5v.
I gave it exactly 12 volts through the RAW power input, but it instantly got hot and started fuming. Fumes were coming out of the area close to the ...
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Problems using SIM808 with Pro Mini
I'm having problems with my setup.
I'm trying to create a wind-speed system when you send an SMS to retrieve the correct wind speed as an SMS response.
I'm using a pro mini, connected by USB via FTDI, ...
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Why do NRF24L01 modules only communicate in 1 direction
I have 2 NRF24L01 +pa +lna modules connected to 2 arduino mini pros. One of the modules is on a joystick and the other one is on a airplane. Everything worked perfectly until last week when they ...
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How to power Arduino pro mini and DFPlayer mini togather with 3.7 V LiPo battery?
I made a small box containing Arduino Pro Mini , DFPlayer Mini player and a 3.7V LiPo battery. Is it possible to power two devices with 3.7 V Battery?
What is the best way to save power for longer ...
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How to find the time of any point on the graph on an Arduino serial plotter or Processing software?
I am plotting the graph of some sensor values on my Arduino serial plotter which looks something like this -
But what I want to do is hover over any point on the graph and display the time at that ...
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Why can't I use 3V output of arduino pro mini?
I have an Arduino pro mini and I tested digital write of an pin and it is 3.2V and then I connected it to a 3V motor, but when I connected the motor to it, The voltage drops under 0.2 Volt, Can any ...
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Arduino AT Cmd Not Working
We are Using I-CUBE-LRWA Lora Module AT Cmd with Arduino ProMini
Set of commands set with DockLight working Perfectly but with Arduino, we are getting some coded response and well every time RXTimeout ...
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MP3 File through ARDUINO
Hey question is that it is possible to play MP3 file in arduino without changing it into .wav file if possible ,then your suggestions are welcome
Thanks
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Sketch works on Arduino nano but not Pro Mini
I have a simple test sketch to run for my led aquarium:
#include <IRremote.h>
#include <IRremoteInt.h>
IRsend irsend;
void setup() {
}
void loop() {
irsend.sendNEC(0xF7C03F, 32);
...
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HX711 with NodeMcu
I am trying to make a scale that measuring weight. In internet i did some researches so i got some questions.
I have this module as a HX711
And square 3 wired loadcells( Red,White,Black Wired).
My ...
