Hedy articles - 250 total
How to change the VID / PID of an Arduino Nano?
Changing the VID / PID of an Arduino Nano depends entirely on which USB interface chip your Nano...
How to activate/deactivate other circuits with higher voltage from a microcontroller?
To switch (activate/deactivate) higher-voltage circuits from a microcontroller, you’re really...
How to program STM32 microcontroller?
Programming an STM32 is a pipeline of four layers: 1. Write firmware (source code) You write C/C++...
How to pause FPGA based digital clock through buttons on FPGA?
1) what “pause” means in an FPGA digital clock A typical FPGA digital clock has at least two...
How to Use printf() on STM32 via Serial (UART)?
Below is a practical, step-by-step guide to using printf() on an STM32 via a serial (UART) wire,...
How to Overclock a Raspberry Pi?
Overclocking a Raspberry Pi means running the CPU, GPU, and memory at higher frequencies than default...
How to turn on an Arduino LED in Tinkercad?
Here’s the simplest, step-by-step way to turn on an Arduino LED in Tinkercad, perfect for...
How to simulate microcontroller output with maximum current and high voltage?
A microcontroller (MCU) pin can’t directly output “maximum current + high voltage.” In theory, an MCU...
How to use FPGA to implement PID?
Implementing a PID on an FPGA is very doable—and usually better than a microcontroller when you need...
What do I need to learn to build a robot with Nucleo-F401RE?
The Nucleo-F401RE is perfect for a first “real” robot because it has ST-LINK built-in, plenty of...
Which Raspberry Pi can take 24v?
Most Raspberry Pi “computer boards” do not accept 24 V directly. They are 5 V devices (powered via...
How to code LED lights on Arduino?
Here are the most common ways to “code LED lights” on Arduino, with working examples. (Assuming...
How to connect to a different microcontroller via Arduino IDE's serial port?
You can use the Arduino IDE’s serial port (Serial Monitor / Plotter) to talk to another...
The principle, configuration, and simulation of XADC IP in Xilinx FPGA
Below is a practical, engineering-style view of XADC (Xilinx/AMD 7-series on-chip ADC) + XADC Wizard...
What is the internal clock in STM32 timer?
In STM32 timer terminology, the “internal clock” usually means the timer is clocked by CK_INT — a...
How to use DHT22 on Raspberry Pi?
Here’s a reliable, start-to-finish way to wire + read a DHT22 (AM2302) on a Raspberry Pi. 1)...
How to create flashing leds on an Arduino Nano?
Here’s the simplest way to make flashing LEDs on an Arduino Nano, plus a “multi-LED chase”...
How to check for memory leak in microcontroller?
Memory leaks on microcontrollers are usually heap leaks (malloc/new without free/delete) or resource...
What is XADC in FPGA?
XADC (eXtensible Analog-to-Digital Converter) is an on-chip analog mixed-signal (AMS) block inside...
How to flash hex file into STM32 using ST-LINK/V2?
Here’s the standard, reliable way to flash a .hex onto an STM32 using ST-LINK/V2 (works for most...
How to setup wifi on Raspberry Pi 4?
Here are the three most common (and reliable) ways to set up Wi-Fi on a Raspberry Pi 4, depending on...
How to install Arduino Nano modules in KiCad?
Here are two solid ways to “install Arduino Nano modules” in KiCad (i.e., place a Nano on your...
How do I take a neural network in Python and run it on a microcontroller?
To take a neural network you trained in Python and run it on a microcontroller, the winning pattern...
How to use humidity and pressure sensors in daily life?
Humidity and pressure sensors are surprisingly useful in everyday life because they tell you two...
What is hardware kernel in FPGA?
In FPGA land, a hardware kernel is a block of logic that implements a “kernel function” as dedicated...
How to use protobuf on STM32?
On STM32, you can use Protocol Buffers, but you almost never want Google’s full C++ runtime. The...
How to transfer files to Raspberry Pi from PC?
Here are the most common (and reliable) ways to transfer files from a PC to a Raspberry Pi. Pick the...
What external power source is Arduino connected to?
An Arduino can be connected to an external power source in a few standard ways. Which one you use...
What microcontrollers are used in industry?
Common industrial microcontrollers are chosen for long-term availability, wide temperature range,...
Which microcontrollers are used for vibration sensors?
Short version: there isn’t a special “vibration sensor microcontroller” – you pick an MCU based on...