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 ====== Microcontroller ======
-*A microcontroller (MCU) is a small computer on a single integrated circuit (IC) containing a processor core, memory, and input/output peripherals.* The concept of microcontrollers dates back to the 1970s, when the first commercial microcontroller was released.
+**A microcontroller (MCU) is a small computer on a single integrated circuit (IC) containing a processor core, memory, and input/output peripherals.**
+The concept of microcontrollers dates back to the 1970s, when the first commercial microcontroller was released.  {{ :intel_8049_microcontroller.jpg?nolink&300|}}
 **Early Years (1976-1980)**
 The first commercial microcontroller, the Intel 8048, was introduced in 1976. This 8-bit processor had a clock speed of 12 MHz and included on-chip memory and peripherals. The 80C51, released in 1981, was a more popular MCU that became widely used in various applications.
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 commonly used in early embedded systems.
-**Rise of Programmable MCUs (1995-2005)**
+**Rise of Programmable MCUs (1995-2005)**{{:arduino-publicdomain.png?nolink&200 |}}
 The introduction of programmable microcontrollers marked a significant shift in MCU development. The PIC16C54, released in 1993 by Microchip Technology, was one of the first widely used programmable MCUs. This led to the creation of
 embedded systems with custom firmware and increased flexibility.
-**Arduino (2005-Present)** {{ :arduino-publicdomain.png?nolink&400|}}
+**Arduino (2005-Present)**
-The Arduino platform, introduced in 2005, revolutionized microcontroller development for hobbyists and professionals alike. The Arduino board combined a simple programming environment with an ATmega8 MCU, making it accessible to those without extensive electronics knowledge. This democratization of microcontrollers enabled rapid prototyping and innovation.
+The Arduino platform, introduced in 2005, revolutionized microcontroller development for hobbyists and professionals alike. The Arduino board combined a simple programming environment with an ATmega8 MCU, making it accessible to those without extensive electronics knowledge. This democratization of microcontrollers enabled rapid prototyping and innovation.{{ :esp32-s3_on_paper.png?nolink&250|}}
 **ESP32 (2016-Present)**
-The ESP32 family, developed by Espressif Systems, is another significant development in the microcontroller market. Released in 2016, this platform integrates a dual-core processor with Wi-Fi and Bluetooth capabilities, making it an
+The ESP32 family, developed by Espressif Systems, is another significant development in the microcontroller market. Released in 2016, this platform integrates a dual-core processor with Wi-Fi and Bluetooth capabilities, making it an ideal choice for IoT applications. The ESP32 has become increasingly popular due to its ease of use, flexibility, and affordability.
-ideal choice for IoT applications. The ESP32 has become increasingly popular due to its ease of use, flexibility, and affordability.
 **Modern MCUs (2020-Present)**
 Today's microcontrollers are more powerful, efficient, and versatile than ever before. Advances in semiconductor technology have led to the development of low-power MCUs with high-performance processors. The ESP32-C6, for example,
 supports both 2.4 GHz and 5 GHz WiFi frequencies, while maintaining low power consumption.