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H bridge motor using L293D
I am looking to turn a single motor clockwise and anticlockwise alternatively. However when I run the simulation the motor doesn't run in any direction. Code and circuit image have been attached. int...
View ArticleLock him up! lock him up!
Guilty on all 34 counts! 9 posts - 5 participants Read full topic
View ArticleHC-SR04 ultrasonic sensor signal attenuation
I'm using an HC-SR04 ultrasonic sensor for a simple project, I used the example HC-SR04 library and uno board and it worked fine, but when I used the long wire (80cm) for the trigger pin and echo pin,...
View ArticleTortoise Terrarium Controller
Hey everyone! I've been on here for help before and I'm making a lot of progress for a beginner. Now I'm stuck on the RTC module and having things on a schedule. I need to have relay 1 activate for 12...
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DS4231 eeprom hack II
This is the continuation of the thread: DS4231 eeprom hack Device Hacking Hello community! I have a portable cable label printer (BRANDY BMP61). Since the cable labels are small, the printer only uses...
View ArticleAssistance with RPlidar - spins but doesn't provide data
Hello, I'm new to using LiDAR - for this project, I'm working with a RPLiDAR. I'm using the attached code and the LiDAR spins, however, returns 0 for all values: Edit: I'm using an Arduino Uno...
View ArticleCapacitor for nRF24L01
What are the correct capacitor to use in a nRF24? I already seen people using 10uf capacitor, 47uf capacitors, non-polarized capacitors, ... Which one should i use? 2 posts - 2 participants Read full...
View ArticleCan’t connect display to My board…wiring issues
Hi everyone, I’m new to this forum and I just recently got inspired with Arduino. As far as knowledge with hardware/coding, I have no experience with it. I bought these from Temu: Arduino Kit TFT...
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Sensor de turbidez en ESP32
Buenas gente estoy haciendo un proyecto de monitoreo de la calidad del agua inalambrico y tengo un gran problema , resulta que tengo un sensor de turbidez KIE-TS-300B y copie un codigo de un video de...
View ArticleRoller coaster simulator
Is there anyone who can help me with my project? I want to find roller coaster movement data in virtual reality videos in order to run it on a simulator that runs on Arduino and servo motors. 2 posts...
View ArticleAssigning percentage values to nonlinear analog input
I am attempting to assign a percentage value to a raw analog input that is nonlinear over its range. But I am thinking there may not be a straightforward solution. When the sensor is at the bottom end...
View ArticleSwitch case block completely refuses to execute
I try this code as follows: I launch it, it works, the state is 0. I input a variable, the state passes to 1, and executes the code - when I apply the right acceleration, the state passes to 2 (FLY)...
View ArticleCan I add ultrasonic to the side of my headwear?
I have a headwear that is supposed to detect something in front of you and send to vibration motor to tell the user. My problems are that sometimes the vibration motor kind of annoyingly vibrates even...
View ArticleArduino Programming USB interface
Hello, I'm new here and have the following question: Does the USB interface for programming the Arduino always have to be reserved for this purpose and therefore has to remain unused in my...
View ArticleNano ESP 32 bricked?
Dear Forum, I know this might have been reported/discussed a gazillion times but I'm desperate with my brand new Nano ESP32. It started that uploading a sketch (from Examples) ended in the well known...
View ArticleHELP! tachometer signal divider
Hello my name is Tim. Im in need of some help. I apologize if this is not the right place. So my father in law had his boat restored at a local marina and they replaced the guages on the dash. The...
View ArticleRandom operation of the RTC DS 1302
Hello, I have random operation of the RTC DS 1302 on a project based on MEGA 2560 PRO. The assembly is powered by a 240Vac/12Vdc switching power supply and a 5Vdc regulator (7805). The connections on...
View ArticleQuizz : can you say who is right ?
Fred, Bob and Linda have built an an electronic device. The gig runs in 3 minute cycles, it stays awake for 0.4s then sleeps for the remaining time in the cycle, that is 179.6s and then it starts...
View ArticleLilygo T-Echo with GxEDP2 library example
Hello everyone, I'm not a development expert. I can get my T-Echo to work with the GxEPD library, but I have screen refresh problems. According to my research, the solution would be to use the library...
View ArticleTMC2209 stepping extremely slow
I have been struggling to get my stepper to actually move at a decent clip speed. It is supposed to step at a speed that is relative to a 0-1023 input. After days of help on discord and debugging I...
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