All Questions

I'm running GSMv2 on ArduinoMega to read number from webpage which then interacts with other code - plays LED animation with TLC5940. I've set up GPRS connection so that it can parse HTTP request ...

I wanted to use a electric strike fail secure lock to secure a box. Is it a good idea to use a electric strike or is there any better locking mechanism to secure the box?

I am making an Arduino mod-bus device and I want to make a webpage as well that will allow me to reset the unit if there is any issues remotely. To do this I would need the mod-bus to operate on port ...

Alright, Here's what I need. Something that will charge a 3.7v battery through micro-USB (without exploding) Also, it should cut off when the voltage gets too low on the battery to run the arduino/...

I currently have a push solenoid connected to my standard Arduino board. The Arduino is powered via its USB cable, while the solenoid is powered using a 12V Huawei adapter (in conjunction with a ...

Iam New to the arduino world and iam kinda lost to compelete my final year project. the topic is structural health monitoring using piezoelectric sensor. so specifically trying to make piezoelectric ...

I have a strange behavior, using ESP32 devkit v.1 boards. Everything works, I can upload blink sketch, serial works, led blinks. However, once I upload any sketch which is using the wifi.h (and ...

Hello my friends today I need your assitance ! I am experiencing a very strange problem with my arduinos. I am experienced in programming and used them for quit some time now. However I didnt use them ...

I am working with two sets of IR beam, they are to be placed in X distance. My goal is to measure speed. I would like to measure time between the first IR beam to the second beam when the beam breaks. ...

Since the RF_RH24 library use the interrupt, when I decode the PPM by interrupt, there will be a disturb. So I want to alter RF_RH24 library to not use the interrupt. I found the corresponding code in ...

I have a thermocouple k. I want this thermocouple to select the first value OF TEMPERATURE that it read and assign it to a variable in an Arduino program. How should I do that?

Alright. This is what I wanted to do: Make a circuit and code the arduino such that there are 2 tactile switches, each with a predefined pwm value. Whenever any one button is pressed the led should ...

I want to automate the chicken coop of my grandmother. To do so, I want to use Arduinos and NodeMCUs, respectively. I want to check if all chickens are in the coop at night and then close a little ...

How do you send the sensor data from esp8266 nodeMCU to MySQL Database using MQTT Protocol, i have seen alot similar guide online but can't seem to understand them. I am using a simple weight sensor ...

I have an Arduino Uno and ESP8266-01 Wifi module with me currently. So I'm going to use ESP8266 to connect to the MQTT broker to allow me publish data to other devices. However, I have a problem with ...