The ATmega128A is a high-performance, low-power 8-bit AVR RISC-based microcontroller from Microchip. It combines a wide range of features, making it suitable for various embedded applications. Here are the key specifications and features:

• Dual-core ESP32 processor with Wi-Fi and Bluetooth capabilities.
• 4MB Flash Memory for efficient data storage and programming.
• Integrated battery management system with 500mA charging current.

• Dual-core ARM Cortex M0+ processor, up to 133 MHz
• 264kB SRAM and 2MB Flash memory
• Integrated WiFi (IEEE 802.11 b/g/n) and Bluetooth 5.2 (not software supported at launch)
• USB 1.1 Host and Device support

• Wide Temperature Range: Measures from -70°C to +380°C for object temperature and -40°C to +125°C for sensor temperature.
• High Accuracy: 0.5°C accuracy over a wide range (0 ... +50°C for both sensor and object).
• Customizable PWM Output: Ideal for continuous readings.
• Factory Calibrated: Ensures high medical accuracy.

• 16pcs 5050 RGB LEDs with built-in WS2812 chip for full-color effects
• Individually addressable LEDs with digital control
• Operates at 5V, suitable for low-power applications

• 2MP OV2640 camera sensor for sharp image capturing.
• CSI/DVP interface for seamless integration with IoT boards.
• Compatible with ESP32-CAM, ESP-EYE, STM32 (F4/F7), and other IoT boards.
• 66-degree field of view for versatile applications.

• Supply voltage: 3.3 V to 5V
• Output can directly connected to controller
• TTL level output
• Maximum output current : 15mA

• Compatible with both 5V and 3.3V systems
• Full-duplex operation for high-speed data transfer
• Supports bi-directional voltage shifting
• Simple and easy-to-use module for level shifting

• Compact Design: Shell-in-one structure for enhanced durability
• High Voltage Output: Capable of stepping up voltage to DC 200-400KV
• Efficient Current Handling: Input 4A and output 0.5A
• Polar Discharge Distance: Approximately 1.5 cm, beyond which damage may occur

• Operating Voltage: 3.3V to 5V DC
• Operating Current: 15mA
• LED Indicators: Output and power status LEDs
• Based on LM393: Easy to integrate with microcontrollers

• 4-Channel relay interface board with independent control
• High-current relay support: AC250V 10A / DC30V 10A
• Opto-isolated inputs for enhanced safety and noise reduction
• LED indicators for real-time relay output status

• Wireless charging transmitter module, compatible with WPC standard wireless receivers
• Supports up to 5W charging power for fast and efficient charging
• Foreign body detection (FOD) function to ensure safety
• Low static power consumption with high efficiency

• RS232 to RS485/RS422 Converter: Easily connect any RS485 or RS422 device to a COM port.
• Ideal Solution: Seamless communication between serial port and RS485/RS422 devices.
• No External Power Supply: Uses unique serial charge pump drive technology.
• Real Three-Wire Communication: TXD, RXD, GND – no need for serial port initialization.

Specifications:

• Mini DC Charging Fan Circuit Board
• 3 Level Speed Control & LED Indicator
• Ideal for Electrical Circuitry & Parts
• Best Choice To Replace Or Making a Mini Fan
• USB 5V Charging

Package:

1x Mini Rechargeable Fan Circuit Board with 3 Level Speed Control and Led Indicator

• High Performance: 48 MHz Arm® Cortex®-M4 with a floating point unit (FPU) for advanced processing power
• Power Efficient: Operates at 5V, with recommended input voltage up to 24V
• Multiple Communication Interfaces: Includes UART, SPI, I2C, and CAN for versatile connectivity options
• Enhanced Memory: Offers 256 kB Flash Memory, 32 kB SRAM, and 8 kB EEPROM for data storage

• Compact Design for easy integration into projects with limited space
• Multiple Voltage Options: Available in both 3.3V and 5V versions
• Versatile I/O Pins: 12 Digital I/O Pins (5 with PWM output) and 8 Analog Inputs
• Low Power Consumption ideal for battery-powered projects