Questions tagged [arduino]

For questions about the do-it-yourself single-board PC and its add-ons.

30 questions
8
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1 answer

What are good LED boards for an Arduino?

What are some good charlieplexing LED matrix boards for the Arduino that use very few pins? About 3 digital pins would be great. Also, I am looking for a good interface to control the LED matrix.
TanMath
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3
votes
2 answers

Need a blood-pressure measuring module recommendation for arduino

I need to record blood pressure with a blood pressure cuff interfaced to an Arduino uno module so the data can be logged. I searched the web for a such a device, but could not found anything useful. Which modules should I look for?
seneill
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2
votes
1 answer

Mechanism to close a small gate using Arduino

I have a 3' (1 meter) tall plastic gate around my yard. I would like to automatically close it with my Arduino or Raspberry Pi. Not by remote control - I just want it to detect that the gate is open, wait a few seconds, then close it. I figure I…
Hack-R
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1
vote
1 answer

Programmable Induction Hotplate

I'm looking for an induction hotplate that I can control via my own software. An RS232 port or something similar would be fine, but I don't mind if it's not RS232. As long as I can write a program to control it. I'd like to be able to switch it on…
sav
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1
vote
0 answers

Accelerometer to detect very small vibrations

I am working on my own little project where I need to do detect CNC machine spindle vibrations. The spindle spinning up to 30000rpm and vibrations expected are less than 1mm. I have purchased lis3dh module and tried to run some Arduino program on…
1
vote
2 answers

small size Alternative of raindrop sensor

I am thinking of creating a device that will detect water leaking/ water detection. I am currently using this: And this one I want but it is costly and not available on Amazon India or flipkart : I don't know if there is a small alternative for…
Lucifer
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1
vote
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Arduino Presence Detector through Glass and Transparent Objects

I'm trying to measure the distance of a glass/transparent object using an IR sensor. Does anybody know of sensors that work for this task? Note: it has to be reasonably small, so ultrasonic sensors won't do.
1
vote
1 answer

Sending order from ESP32 to Arduino Mega

I am new here and this my question regarding my graduation project. I want to control the Arduino board from ESP32. For example, a temperature sensor will be connected to the ESP32, when ESP32 read a certain temperature then will send information to…
0
votes
2 answers

Electronic Deadbolt for Door

I am not sure "deadbolt" is the correct term for what I am looking for. I am searching for the metal piece on the side of doors that extends to lock it, but one that can be controlled electronically (with Arduino). The thing on the right of this…
JohnDoe
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0
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0 answers

cheap Arduino recommendations

i am creating a light strip and was wanting to use an Arduino for it. as i was looking at the price tags i figured i would come here and ask for recommendations. i need something with similar functions to an Arduino Uno, is able to be battery…
0
votes
1 answer

Making a WiFi event recorder

I want to make a stomp box with a single button that will record an event time. I’d like the box to be able to record the event directly to a web database (there are plenty of ways to do this, but I’ll probably write a PHP api to listen for the…
jsm
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