LCENJ Technical Library
آموزشهای کاربردی و پروژهمحور مبانی امبدد در LCENJ؛ همراه با مثال، تصویر، کد و مسیر یادگیری مرحلهبهمرحله.
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Embedded fundamentals
Read an Arduino Uno button with INPUT_PULLUP and a bounded debounce state machine. Download tested code covering held buttons, short pulses and millis rollover.
Tutorial | release 1405/07/27 - 10:19 Study the article
Embedded fundamentals
Calculate a PC817 LED resistor, understand CTR test conditions and choose an output pull-up, with a real photo, schematic and verified product links.
Tutorial | release 1405/07/26 - 10:10 Study the article
Embedded fundamentals
Calculate 7805 power loss, understand thermal resistance and estimate a heatsink requirement, with a real L7805CV photo and component purchase links.
Tutorial | release 1405/07/25 - 10:12 Study the article
Embedded fundamentals
Learn relay flyback diode polarity, coil current paths and 1N4007 selection with a real photo, schematic, energy calculation and component purchase links.
Tutorial | release 1405/07/24 - 10:15 Study the article
Embedded fundamentals
Learn NE555 pin functions, build a 5 V one-shot, calculate RC pulse width and check tolerance, with a real photo, schematic and component purchase links.
Tutorial | release 1405/07/23 - 10:15 Study the article
Embedded fundamentals
Compare the classic ESP32 and the STM32F103C8 with a requirements table and two sample projects; Measure wireless connectivity, timers, memory, consumption and development tools separately.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
Why does the module regulator not guarantee the logic level? Select resistive divider, buffer and I2C bi-directional converter by calculating tolerance and signal type.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
Reset when Wi-Fi, turn on the load or check the USB connection step by step; Isolate cable drop, source capacitance, regulator, EN and capacitor placement from software error.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
PWM is not a constant analog voltage; Learn frequency and brightness ratio separately with ideal wave, LED lighting example, RC filter calculation and Uno compilable code.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
Turn the specification sheet into a design decision; Read the difference of damage limit and working condition, typical and guaranteed value, accuracy and resolution with sensor and logic example.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
Schedule LED flash and serial report without delay; Learn unsigned difference, millis overflow, fallback policy and sensor conversion with Uno example.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
From the number of wires and clock to the data format and voltage level; Compare the three common interfaces with the example of sensor, display and serial module and find the error step by step.
Educational article Published on 07/21/1405 - 13:23 Study the article
Embedded fundamentals
MOSFET practical training in simple language with real example, NMOS and PMOS performance review, reading important datasheet parameters and switching circuit design.
Educational article Published 04/24/1405 - 00:50 | Edited 07/21/1405 - 11:41 Study the article