I2C wire Library not working on Portenta C33 act as Slave
Hello All, I am using Portenta C33 it act as I2C slave using Arduino wire library. But when we connect I2C Master and sending data to Portenta but it seems SCL pin always high not getting clock on...
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Help identifying type of ESC / firmware
I bought this 30A ESC so i could use it to control brushless motors of this manipulator robot, but the the problem is that i don't know if you could use it to reverse. I tried looking for type of chip...
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This is a question about the Ethernet communication switch circuit
This is a question about the Ethernet communication switch circuit. This is a question about the Ethernet communication switch circuit. hello. There is a project I want to make. This is switching...
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Could not open port 'COM1': PermissionError(13, 'Access is denied.', None, 5)
I have an Arduino Uno. I wan to connect it with the laptop via cable to send the data from excel sheet. Excel sheet is having only one column having ten entries of numbers ranging from 1 to 10. I want...
View ArticleColor code arduino
Hello, has anyone here already created a code on Arduino where you can determine the color code of a resistor by entering the size of the resistor in the Arduino? We have to do this at school and have...
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Light control with DMX/RDM: set address
Hello, I have 2 daisy chained light fixtures that I want to control individually from an Arduino Mega. The lights just have a while dimmable LED but don't have a physical way to set the DMX address....
View ArticleWireless E-stop notification
Hello everyone. I have a small machine shop in my garage, two small lathes. One of the machines feed parts to itself, everyone knows that a E-stop is a normally closed circuit, when the E-stop is...
View ArticleESP32 I2C slave not working
Hello, Quick summary of issue (code below). I have an esp32-2432s028 (AKA Cheap Yellow Display (CYD)), I'm trying to setup I2C communication between the CYD & an Arduino Nano. I've got Nano master...
View ArticleExample how to programm ir multiple buttons read like "12"
I cant find any lead how to receive few consequtive codes from IRremote. Reading one button is trivial, but how to use multiple reads? Thanks in advance. 3 posts - 3 participants Read full topic
View Article3 servo with a battery
please help I'm trying to make 3 servos run with this code but it is not working when I connect it to the battery I'm using arduino uno #include <Servo.h> Servo servo1; Servo servo2; Servo...
View ArticleCommunication Program Python dan Arduino
I have a python programme to send data to an Arduino. import serial import time arduino = serial.Serial(port='COM6', baudrate=9600, timeout=.1) def send_data(data): arduino.write(data.encode())...
View ArticleUnusual LED behavior
I am attempting to make some reactive targets and am seeing unusual LED behavior. If I hit target with target id of 2 first the LED does not change. I still see the print statement with the sensor...
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UDP and Serial Monitor
Hello, all. I am working on a program that sends two packets via UDP (one packet of size 14 bytes and another of size 5 bytes). Right now, I am only using two devices for the two-way communication,...
View ArticleConnecting 6 Sensirion SFM3013 Sensors to Arduino Mega
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Connecting 6 Sensirion SFM3013 Sensors to Arduino Mega
Hello! I am trying to connect two SFM-3013-300-CL's to an Arduino via a TCA9548A multiplexer to collect flow and temperature data. I am using the 'exampleusage.ino' file from this github (...
View ArticleControlling servo using pwm
I'm working on a project where we use 2 mg996 servo and tfmini plus lidar to map a room. But when we wrote a code the vertical servo is shaking. When lidar is not connected there is no shaking. I...
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Incorrect Loop for Positioning Linear Actuator
I have the following program that is suppose to move a linear actuator to various positions based on the momentary push of one of two buttons, one for extend and on for retract. When I download the...
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Controlling proportional solenoid - current, voltage or PWM?
hello, im trying to build a prototype of a ventilator but i am a completely new when it comes to hardware. to control some other components i need to use a proportional solenoid - specifically im...
View ArticlePWM H-bridge nodemcu 8266
Hi, I'm trying to control a brushless motor with 3 Sinussignals as PWM-signal for a H-bridge on a nodemcu esp8266. I created this sketch wich works, but only when the pwm-frequency is 500hz or lower....
View ArticleIot cloud 3rd party device found but not sure what it is
I have created a Thing using NodeMCU 1.0 ESP8266. Code can be verified and uploaded. If I select the full editor the device is not found. The device type can be found in the editor device list and...
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