Arduino Lab for Micropython
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Cent-Tech 7 Function Multimeter
I received one of these as a gift. I normally use the vintage Radio Shack Micronta pocket meter because it's extremely accurate, but it does not read current. (Otherwise I love it, especially the...
View ArticleWake PC Through Emulated Keystrokes When Command Sent Over Internet
Hey there, I want to be able to wake my Windows PC and sign in to my account from wherever I am. I have a remote desktop set-up so I want to be able to turn my computer on whenever/wherever to be able...
View ArticleConnecting to NYT API via ESP8266
I'm using the ESP8266 board to connect to weather and news services to display on a MAX7219 panel. I've been able to access OpenWeatherMap.org and get their JSON feed. Next, I registered for an API...
View ArticleMDDS30 PWM controls/ coding controls
Hi, im trying to write code to arduino using a base shield that the user manual recommends. However, everytime I try to upload a code to the arduino, the motors just move automatically. I event try...
View ArticleCan't catch UDP datagrams from NANO + ENC28J60 to pc
I can't get UDP datagrams from nano + ENC28J60 to my pc. Working with this hardware like a server is brilliant, I even can recieve dgrams and turn on/off light. But I need to know, how I can send UDP...
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Check this strange behavior, what could be the reason for this 12 Hours...
Hello I just bought a ESP32 nano board and the idea is to start reading PH in my aquarium but before buying the sensor I started testing the board and the code with a simple voltage divisor. What is...
View ArticleProblems getting arduino connected to Laptop
Hello, everytime when I plug my elegoo into my laptop it makes the connecting sound and then a second later it makes the disconnecting sound and it wont pick up the port the elegoo is plugged into in...
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GYML8511 UV Sensor with Arduino Uno Problem
Hi! I'm part of a group doing a project for a physics lab class that's trying to use a GYML8511 UV Sensor with an Arduino Uno board to measure UV Intensity. We've found a sample hookup and code in...
View ArticleMQTT subscription failed
I used MQTT Explorer to connect and subscribe to the broker and succeeded, but when I switched to code, it returned false or 0. Following is the main code (for 256dpi/MQTT@^2.5.2): void test() {...
View ArticleSmall board to turn power on for a small incandescent light when it senses...
I'm an idiot my wife tells me every day. I'm trying to make a small device I'm going to strap on my drone to turn on a small light when I'm too close to the ground, for when I'm still playing around...
View ArticleHow to split a sketch based on switch high or low
Hi, I am building a sketch to control the radar dish on a display aircraft. The dish is located in a housing that either raises the dish into the fuselage or lowers to working height. I have a manual...
View ArticleESP32 + DY SV8F (MP3 player)
hello, i have connected it on serial2 (16,17) rx->tx and tx->rx. i can't get it to play a specific mp3. all mp3 are in root named 00001.mp3 00002.mp3 etc. is there something wrong with my code?...
View ArticleCan the Pico W be used for wifi and usb host at the same time?
Hello I would like to know if the the Pi Pico W can be used as a usb host keyboard and for wifi at the same time thanks 2 posts - 2 participants Read full topic
View ArticleControlling the input with step motor output
Can I duplicate the stepping motor control to a larger nema size stepping motor via using a second steper control. Can i use the first stepper contols output as and input to the 2nd stepper controller...
View ArticleControll stepper torque with pwm
hi, i've a nema 23 stepper motor, 3A - 0.95 ohm, for this project i need to controll the torque of the motor: from my code i recive a pwm signal (0-255) that rappresent the % of torque i need to...
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Problem with Identifying ESP32 port in arduino
Hi. I have purchased ESP32 camera module from a website before a week and It was working fine until today. I tried to connect the microUSB cable of the ESP32 cam to the laptop on the arduino software...
View ArticlePwm.h on Uno R4 Minima using pins 3 and 11
Hi, I have a Uno R4 and a Motor Shield Rev3. I am trying to use the pwm.h library and use the pwmOut object to set both motor outputs to be 16khz (period set to 62us). If I use either motor A (Pin D3)...
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Strange behavior using ESP32 and hall effect sensor
Hi all, I have an ESP32 Wroom and when i try to plug a thumb throttle on pin 13 and a push button on pin 27 everithing work fine i succeed to read the hall value but when i press the button the signal...
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