• Mini WIFI board based on the ESP-8266EX chipset
• 11 digital input/output pins, with interrupt/pwm/I2C/one-wire support (except D0)
• 1 analog input (max 3.3V input)
• Micro USB connection for easy integration

The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller from Atmel, featuring 8K bytes of in-system programmable Flash memory. This microcontroller is designed for a wide range of applications, offering robust performance and flexibility. It includes several standard features that make it suitable for embedded control applications.

Specifications:

• Using the NTC thermistor sensor , good sensitivity
• The comparator output signal clean waveform is good , driving ability, than 15mA
• Adjust the temperature distribution bit detection threshold
• Working voltage 3.3V-5V
• The output format: Digital switching output (0 and 1)
• With bolt holes for easy installation
• Using a wide voltage LM393 comparator

Package:

1x Digital Thermal Temperature Sensor Module for Arduino (Thermistor)

• Detects conductance of skin
• Includes finger straps for electrodes
• Compatible with 3.3V and 5V systems
• Compact and lightweight design

The PIC16F877A is one of the most renowned microcontrollers in the industry, known for its convenience and ease of programming. This microcontroller uses FLASH memory technology, allowing it to be written and erased multiple times. With a total of 40 pins, including 33 for input and output, it is widely used in various PIC microcontroller projects and digital electronics circuits.

• Converts DC 3-15V input to a stable -12V output
• High efficiency with minimal power loss
• Low static working current for energy efficiency
• Suitable for ADC, DAC, LCD power supply applications

• Compatibility: Designed specifically for ESP8266 ESP-01 WiFi module.
• Pin Spacing: 2.54mm (standard breadboard pitch) for easy integration with breadboards.
• Voltage Regulator: 3.3V onboard regulator for stable voltage supply.
• Output Voltage: Provides 3.3V for powering the ESP-01 module.

• Input Voltage: 6V to 40V DC (Recommended: 10V to 40V)
• Output Voltage: 1.2V to 36V DC
• Output Current: 20A max., 15A recommended
• Efficiency: 95% (at 24V to 12V, 20A)

• Built-in WS2812 IC for easy control
• Supports full-color RGB lighting
• Operates at 4V - 5.5V DC
• Compact and lightweight design

• Integrated Cold Junction Compensation: Ensures accurate temperature measurement with built-in cold junction compensation.
• High-Resolution Output: Provides 12-bit resolution, allowing temperature readings from 0°C to 1024°C with a 0.25°C resolution.
• Thermocouple Break Detection: The module includes a circuit to detect thermocouple breaks, ensuring reliable operation.
• K-Type Thermocouple: Compatible with a K-type thermocouple, ideal for high-temperature measurements.

• Supports 802.11 b/g/n WiFi
• Wi-Fi Direct (P2P) & Soft-AP functionality
• Integrated TCP/IP protocol stack for easy internet communication
• Built-in Power Management with low standby consumption.

• High sensitivity IR receiver
• Extremely sensitive to wavelengths between 760-1100nm
• Power supply indicator lamp
• Comparator output indicator lamp

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

• 4-digit 7-segment LED display with a super red color for clear visibility
• Common anode configuration for easy integration into various DIY projects
• Ideal for use in clocks, timers, and other time-based applications
• Compact size of 0.36 inches, perfect for space-constrained setups

• Dot Laser for precise applications
• Low Power Consumption at 5mW
• Compact Design with a 6mm OD for easy integration
• Stable Operation at a 650nm wavelength

• Double-Sided Design: Provides more flexibility for component placement and routing.
• High-Quality PCB: Grade A construction ensures reliability and durability.
• Universal Use: Ideal for DIY projects, prototyping, and experimenting with circuits.
• Easy Soldering: Pre-printed dot pattern makes the soldering process easier.