arduino

Good morning all Iv had a bit of an idea and just wondering if there is anything out there or something similar as I'm not any good with coding. Iv build my son a basic gaming pc and he would like rgb but the mother board doesn't have a argb header, and I was wondering if a controller could...

I've been trying to read serial data from a Feather M0, but for some reason, I can't read the data into a buffer. This device is for sure outputting serial data, and both PlatformIO and the Arduino IDE show serial data in their respective serial monitors. However, it will timeout when I'm...

Hello. I want to control a servo motor using a time relay in a project. How can I do that?

Hello everyone, I would really appreciate if you could help me Im making a mini fridge controller (PID), using a 4n25 optocoupler, an IRFZ44n Mosfet and a tec peltier I connect it to a 12v and 3 A and arduino 5v As soon as the arduino code is uploaded and I connect it, the mosfet starts to...

I am using seven segment in my project and i was using common cathode and using npn transistor i was able to switch by making arduino pin HIGH. But now i want to display the data on seven segment when i make the pin as LOW. I mean i want to select the Segment when i will make it LOW. i was...

What is a good driver for a 30W RGB LED? I got it ages ago then forgot about it but might want to use it in a project now. Here is a picture, also I would like the driver to be able to be controlled with an arduino. This is the link, but don't worry I also put a heatsink and fan on the back of...

Hello guys, i have a project automatic door for cat, that when the cat is near 20cm or 30cm from the door, then the door will open. So im going to use rfid, i try to use rfid passive disc tag, but then im confuse about rfid reader that can read at a long range, after searching at google i found...

Hi all, i've realize a home project based on Arduino (in order to integrate my domestic heater on my Home Assistant system) with a NodeMcu V3 board where i wrote my custom program that use a DHT22 sensor and a TFT ILI9341 touchscreen display to control the behavior of a relay that switch on/off...

Hello guys, I'm a 18yo (Electrical Engineer) student from the Netherlands, so i'm sorry if my english isn't that good :) So, i got a little job to do for school... i need to control a Studio Light (which is powered by a 19v adaptor) with a Arduino Nano... and maybe even with a BT/WiFi module...

Hi, I have designed ESP12F with CH340G(USB- UART converter) with auto programming feature. As shown below. I have programmed in Arduino IDE. As long as power is there, the board runs the code. But After I cycle the power, the board doesn't run the program! until I hard reset the ESP12F...

Arduino intelligent tracking and obstacle avoidance car, I have achieved obstacle avoidance and tracking, how to make the car on the track to avoid obstacles and then back to the track, how to achieve with ultrasound, how to adjust the ultrasound, and the angle of the servo? int Echo = A1; //...

I am making a boost converter following this Tutorial but I don't have the exact MOSFET. I have 2 motherboards laying around and they have some MOSFETs on them some of the names are: P3055, K3918,6670AL(datasheet inserted). There are high switching speeds but the datasheets don't have the max...

hi I am developing simple circuit where I am trying to detect pressure when arms coming together when hand bended. the device will be placed near the L bow of hand and when user bend the arm, the device measure the pressure and beep if pressure is higher than set limit. I know micro controller...

I made a project to implement it on LCD through both Arduino and STM32, but after I use Arduino, there is no response when I connect to STM32 to click, what is going on?

I recently bought Arduino UNO and Raspberry Pi boards, and I also bought a new TFT LCD from STONE, and I want to make a simple mini-game about Tic Tac Toe. Which microcontroller should I use is better? Does anyone have a similar project or experience that I can learn from? It's my first time to...

Hi All, First time post here and looking for some advice on a simple circuit to see if I have it correct. I am trying to drive four LEDs from one Arduino (5V Pro Micro or Mini) pin. Five pins will be eventually used all doing the same thing although at any one time only one pin will be "on"...

The idea is that i use two switches. the left switch sets the diodes to the right. for every click a diod lights up and i equal to one blink from the 555. You can maximum set the time to 10 blinks (cyels). When it is 5 seconds left the right diod goes low and then the next etc. When the time is...

Hello, I am trying to run linear actuator with BTS7960 motor driver and Arduino UNO. But, the code seems fine, wiring seems fine but after uploading the code, the linear actuator does not start. I am using two push buttons to extend and retract the actuator. The code is shown below: byte...

Qualcuno può aiutarmi con una spiegazione della funzione di questo circuito. Translated; Can anyone help me with an explanation of the function of this circuit I can't find any article on the web

I am coming up with a project - Robotic arm rover by using Arduino. I decided to use a PS2 controller to control and send command. The wireless connection range is around 10 m. Is there any way to work around so that the wireless range can be boost up to 300 m at least? Is there any add on...