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2.4GHz Dual Mode WiFi + Bluetooth Development Board

Support LWIP protocol, Freertos

Clock chip: high-precision clock chip DS3231SN; The DS3231 is an RTC IC developed by Maxim Integrated. It is a low cost, extremely accurate RTC IC with communication over I2C Interface. An interesting feature of DS3231 RTC IC is that it has integrated crystal oscillator and temperature sensor and hence you don’t have to connect an external crystal.

It is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.

Material : Metal, Plastic

It is fit for 2.1mm x 5.5mm plugs

Input: DC 3 V to 40 V (input voltage must be 1.5 V higher than the output voltage, no boost)

Output: DC 1.5 V to 35 V voltage is continuously adjustable, maximum output current is 3 A

ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

ESP8266 is a highly integrated chip designed for the needs of a new connected world.It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.

Its logic level is 3.3 - 5V(a rarity), and can be used to process multiple different formats by setting two pins to high or low.

Its I2S Stereo DAC breakout is a perfect match for any I2S-output audio interface.

ESP32 is a safe, reliable, and scalable to a variety of applications

ESP32 development board support lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA.

Using L298N made by ST company as the control chip,the module has such characteristics as strong driving ability,low calorific value and strong anti-interference ability.

This module can use built-in 78M05 for electric work via a driving power supply part.But to avoid the damage of the voltage stabilizing chip,please use an external 5V logic supply when using more than 12V driving voltage.

【560 pcs U-Shape Jumper Wires】40 AWG; male to male; 14 Kinds of length: 2 mm, 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 17 mm, 20 mm, 22 mm, 25 mm, 50 mm, 75 mm, 100 mm, 125 mm; all of them are pre-stripped and preformed right-angled, easy to insert it into breadboard.

【65pcs Flexible Jumper Cables】Flexible, durable, reusable, easy to connect and disconnect; 4 Kinds of length: 11cm(49pcs), 16cm(8pcs), 21cm(4pcs), 26cm(4pcs); these Dupont cable wires can connect each other through the pin connection, do not need welding, can fit for fast circuit test.

DHT11 digital temperature and humidity sensor is a digital signal output with a calibrated temperature and humidity combined sensor.It uses a dedicated digital modules and acquisition of temperature and humidity sensor technology to ensure that products with high reliability and excellent long term stability.

Sensor consists of a resistive element and a sense of wet NTC temperature measurement devices, and with a high-performance 8-bit microcontroller connected.

ATmega32U4 running at 5V/16MHz

Supported by IDE v1.0.1

ST-Link V2 Stlink Mini STM8 STM32 STLINK Simulator Download Programmer Programming Supporting the full range of STM32 SWD debugging interface; Supporting the full range of STM8 SWIM download debugging (common development environments such as IAR, STVD etc. are supported);Supporting for automatic firmware upgrades

Support the full range of STM32 SWD debugging interface

Perfect Compatibility: The terminal breakout board is only fit ESP8266 ESP-12E NodeMCU Development Board ; ref asin: ‎B08N5WTQ4Q ;B08N6D7PKN

The terminal block board can be connected through by Pin Header & Screw Terminal.You can choose the suitable connecting way for your project

This is a great 400W DC to DC step-up power supply module for electric equipment, digital products, laptop, etc.

DC 8.5V to 50V input voltage, 10V to 60V continuously adjustable output voltage, 15A maximum input current, 12A maximum output current

includes two sizes jumper wires: 10cm and 20cm,

The male end is used to insert into a standard 0.1-inch (2.54mm) female socket, and the female head is used to insert a standard 0.1 inch (2.54mm) male header.

Chip: TCA9548A

Max Clock Frequency: 400KHz

Support MP3 format, playing power on automatically, LED indocator light when module is working.

With MicroUSB power connector, power supply or USB mobile charger powered via phone lines, but also can be 3.7V lithium battery, USB 5V power supply.