The Arduino Uno is the most common of the Arduino boards. It is based on the ATmega328 microcontroller.
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Programming arduino using esp8266
So , I try to make a wifi-serial bridge (at least that's what I hope I want) by following this tutorial : http://domoticx.com/esp8266-wifi-esp-link-firmware/ .
And I have an WeMos D1 R2 based on the ...
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2answers
21 views
Why adding a LED between Pin 3 and Ground causes LCD display not to show text?
For a project of mine I am programming an Arduino UNO to show information I get from some sensors on an LCD display.
As a first step I setup Arduino to show "Hello, world!" on the LCD, which worked.
...
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20 views
How can I make this using arduino?
https://youtu.be/SYrulKuKmVQ
I need help in programing to make the above mentioned project on arduino.
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15 views
Stacking two Arduino UNO — possible?
I'm new to the whole Arduino thing and just getting started. Here's a question:
Is it possible to stack two UNOs (requires resoldering of the pins of one of them, of course) without running into minor ...
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8 views
SIM800L failed to communicate with Arduino Uno R3
Module is SIM800L. Power supply is 3.7v using a step down buck converter. I have connected SIM's TX to Arduino's D8 - Arduino receives on D8, SIM's RX to Arduino's D7 - Arduino sends through D7. There ...
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8 views
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1answer
7 views
How can i provide enough power on an UNO to use the HC-12 wireless module?
Scenario: The Uno is being powered by USB for programming, and the HC-12 wireless communications module is wired correctly. But it will not work.
In reading through the web literature, it is ...
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2answers
20 views
How can I make this button toggle the position of a servo?
I am trying to make something so when I press the button it sets the position of the servo to 50 and then when I press it again, it sets it to 150. The button is momentary not a toggle switch. This ...
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8 views
Bluetooth module able to transmit but not receive?
I am currently building a remote-controlled robot (BB-8), and I'm testing out the HC-05 (FC-114) Bluetooth module by trying to turn on and off an LED remotely, using a clone Arduino Uno. My Android, ...
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7 views
Arduino GSM Shield + Plotly
OK so I am very new with the Arduino GSM shield on an Arduino Uno and it took me most of the afternoon to just send a text so feeling brave I then decided to try to send data to plotly.
There are lots ...
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1answer
25 views
Arduino to ESP8266 (SoftwareSerial) communication, does not receive full data
I have an Arduino Uno and an ESP8266, connected over serial through ESP8266 pin GPIO_2 (which is set as RX over espsoftwareserial) and 11 on Uno (which is set as TX over SoftwareSerial). I am trying ...
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16 views
stepper motor is not working according to code
#include <Stepper.h>
#define STEPS_PER_MOTOR_REVOLUTION 32
#define STEPS_PER_OUTPUT_REVOLUTION 32 * 480 //2048
Stepper small_stepper(STEPS_PER_MOTOR_REVOLUTION, 8, 10, 9, 11);
int ...
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1answer
23 views
5V power supply negative terminal connection
I am currently developing some basic led board using Arduino Uno R3. Basically,
the LEDs are connected in parallel so that 5V DC supply can light up about 3 LED. Each LED has its resistor and its ...
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2answers
47 views
ISR and multiplexing- time required to execute the code in Arduino
Below is an Arduino sketch for a basic animation, taken from the book Beginning Arduino by Michael McRoberts. Also, the connections have been shown. From what I have read elsewhere, this is the ...
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2answers
34 views
PWM doesn't work with my sketch
I have a weird problem. again. This time its the PWM. I have used PWM before and I used to work the way I am doing it now. But now it just wont work. The Fading sketch from example works. When I ...
