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How to modify and edit STL Files?

Whenever only STL files are provided and you still want to edit the STL files according to your needs (e.g. to create buttons/screen cutouts, etc) follow the following steps: Import the STL file as a solid body in your CAD software Perform the modification, e.g. a sketch-based extruded cut Re-export the STL files.

Introduction to CNC Machining

CNC stands for “Computer Numerical Control”, a computer-controlled cutting machine that mounts a spindle that is used to cut out different materials. The tool path is automated by means of software containing numerical data.

DHT11 Humidity and Temperature Sensor

The DHT11 sensor is low-cost Temperature and Humidity sensor that is ideal for hobbyists and prototyping applications. The DHT11 temperature sensor range: 0 – 50°C (±2°C) and DHT11 humidity sensor range: 20-80% (±5%). Its Supply voltage: 3 to 5.5V. DHT11 sensor uses a OneWire protocol. It integrates a thermistor and a capacitive humidity sensor. An integrated ADC converter converts the measured values into a digital signal, which is then output via the OneWire interface.

Arduino Photoresistor

The photoresistor or LDR (Light Dependent Resistor) is a light-sensitive semiconductor element that changes its resistance value according to the intensity of the light: the higher the light intensity on the sensitive surface of the LDR, the smaller its resistance value becomes.

Arduino Analog

The 5V Arduino Boards reads and processes analog signals in a voltage range from 0 to 5 volts. The microcontroller of the Arduino board has an internal Analog-to-digital converter (ADC) for processing the analog input signals. The Arduino Uno, for instance, has six analog channels, in which six analog voltages (i.e. sensors) can be processed in parallel. The ports available for this purpose are labeled A0 to A5 on the Arduino Uno

Arduino Digital

Arduino digital pins know only two states: HIGH voltage (1’s) and LOW voltage (0’s), where 1 corresponds to a voltage of 5 volts and 0 to a voltage of 0 volts. The signals to be read in at the digital inputs come from other digital circuits such as push-button or limit switch, or sensors with digital outputs.

Arduino Testing

Test Arduino code The testing of the software and hardware is carried out in several steps. During code programming, the programmer can check the syntax errors using the compiler directly in the Arduino IDE (using Verify button). However, this syntax error check does not give any indication of incorrect structuring or sequence of the program. Testing the correct sequence of… Read More »Arduino Testing

Arduino Functions

still values are passed, which are processed then within the function. These values are called “parameters”. After execution of the function, which can be a calculation, a conversion or a signal output to an output port, this “small program” is executed and the main program, which called the function, is continued.

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