NodeMCU ESP32 Devkit ESP-WROOM-32 Module 36Pin with 5pcs DS3231 AT24C32 IIC RTC Module and 40Pin Female to Female Dupont Cable for Arduino DIY Project

NodeMCU-32S ESP-WROOM-32 Development Board ESP32 DEVKIT

Description:
Document link https://github.com/Nicholas3388/LuaNode
Strong function with support LWIP protocol, Freertos
Supporting Three Modes: AP, STA, and AP+STA
Supporting Lua program, easily to develop
The ESP32 can be programmed in different programming environments. You can use with Arduino IDE, Espressif IDF (IoT Development Framework),  Micropython,  JavaScript, LUA.
The ESP32 peripherals include:
    18 Analog-to-Digital Converter (ADC) channels
    3 SPI interfaces
    3 UART interfaces
    2 I2C interfaces
    16 PWM output channels
    2 Digital-to-Analog Converters (DAC)
    2 I2S interfaces
    10 Capacitive sensing GPIOs

DS3231 AT24C32 IIC Precision Real Time Clock Module

Description:
The DS3231 is a high precision Real Time Clock Module which can maintain hours, minutes and seconds, as well as, day, month and year information.
The module can work on either 3.3 or 5V. You can use a typical CR2032 3V battery to power this RTC module, kindly note that the batteries is not included in this listing!

Specification:
Operating voltage: 3.3-5V
Clock chip: high-precision clock chip DS3231
Clock Accuracy range: 0-40 ℃, the accuracy is 2ppm, the error is about 1 minute for a year
With 2 Calendar alarm clocks
Programmable square-wave output
Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
The chip itself is with temperature sensor whose accuracy is around ± 3 ℃
Memory chips: AT24C32 (storage capacity 32K)
IIC bus interface, the transmission speed of 400KHz @ working voltage of 5V
Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57

Pin Description:
32KHz：32KHz output
SQW：Active LOW Interrupt or Square wave output
SCL：Serial Clock Input
SDA：Serial Data I/O
VCC：DC Power Pin
GND：Ground

Package included:
1 X NodeMCU ESP32 Devkit 36Pin
5 X DS3231 AT24C32 IIC RTC Module
1 X 40Pin Female to Female dupont cable