Sri Electronics & Embedded Solutions

1. Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
2. Arduino-like hardware IO
3. Integrated TR switch, balun, LNA, power amplifier and matching network
4. Integrated PLL, regulators, DCXO and power management units
5. Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
6. Embeds logic level converter circuits
7. Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
8. Easy access to the GPIO pins for easy prototyping
9. ESP-12E Processor
10. Easy to use breadboard friendly form factor

The ESP8266 NodeMCU development board – a true plug-and-play solution for inexpensive projects using WiFi. The module arrives pre-flashed with NodeMCU firmware so they’re ready to go – just install your USB driver (below). ESP-12 Lua Nodemcu WIFI Dev Board Internet Of Things board contains a full ESP8266 WiFi module with all the GPIO broken out, a full USB-serial interface, and a power supply all on the one breadboard-friendly package.

This board is pre-flashed with NodeMCU – a Lua-based firmware for the ESP8266 which allows easy control via a neat scripting language – Lua – so you’re ready to go in just a few minutes.
The ESP-12 Lua Nodemcu WIFI Dev Board Internet Of Things with ESP8266 is an all-in-one microcontroller + WiFi platform that is very easy to use to create projects with WiFi and IoT (Internet of Things) applications.

The board is based on the highly popular ESP8266 WiFi Module chip with the ESP-12 SMD footprint. This WiFi development board already embeds in its board all the necessary components for the ESP8266 (ESP-12E) to program and upload code. It has a built-in USB to serial chip upload codes, 3.3V regulator, and logic level converter circuit so you can immediately upload codes and connect your circuits.

1. 11 b/g/n Wi-Fi Direct (P2P), soft-AP
2. Integrated TCP/IP protocol stack
3. Use CH340G replace the CP2102.
4. Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
5. Arduino-like hardware IO
6. Integrated low power 32-bit CPU
7. Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
8. Code like Arduino, but interactively in Lua script.
9. Nodejs style network API
10. Event-driven API for network applications,
11. which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.
12. Greatly speed up your IOT application developing process.
13. Lowest cost WI-FI
14. Less than WI-FI MCU ESP8266 integrated and easy to prototyping development kit.
15. We provide the best platform for IoT application development at the lowest cost.
16. Integrated TR switch, balun, LNA, power amplifier and matching network
17. Integrated PLL, regulators, DCXO and power management units
18. Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
19. Embeds logic level converter circuits
20. Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
21. Easy access to the GPIO pins for easy prototyping
22. ESP-12E Processor
23. Easy to use breadboard friendly form factor
24. Voltage Regulator / Converter, excellent DC to DC conversion, super efficient

1 x ESP8266 12E Lua Nodemcu WIFI Dev Board

Additional Information:

• Item Code: SEES-3471
• Production Capacity: 1000 NOS
• Delivery Time: 1-2 DAYS
• Packaging Details: Carton Boxes

1. Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time
2. Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay
3. Transmission Distance : 400m (max)
4. Relay : 5V,10A/250V AC 10A/30V DC
5. Baud Rate: 9600.
6. Diode effusion protection;
7. Short response time

ESP8266 WiFi 5V 1 Channel Relay Module equip with ESP8266 WiFi module and micro-controllers, through the mobile phone APP to the module to send serial instructions to achieve in the LAN within the relay for wireless control. This onboard 5V, 10A / 250V AC 10A / 30V DC relay, can be continuous pull 10 million times, with diarrhea flow protection and short response time.

1. Onboard ESP8266 WIFI module has three operating modes: STA (client), AP (hot), STA + AP (client + hot), according to the work of the module to select the corresponding WIFI module mode of operation The
2. The module needs to use the serial debugging software on the computer and USB to TTL module to send AT commands to configure the WIFI module, USB to TTL module RX, TX, GND pin, then the module on the TX, RX, GND pin, IN +, IN – 5V power supply.

1.  Onboard ESP8266 WIFI module, AP mode can be connected at the same time 5 client
2. The module has two ways to work:
   (i) mobile phone directly mounted on the WIFI module;
   (ii) mobile phone and WIFI module also carried on the router.

1. Open environment, the mobile phone mounted on the WIFI module when the maximum transmission distance of 400m.
2. When the WiFI module and mobile phone at the same time carried on the router when the transmission distance according to the router’s signal weakly;

IN +, IN-: 5V power input;
TX, RX, GND: Serial debug pin;

Onboard the ESP8266 WIFI module has three work modes: STA (client), AP (hot), the STA + Ap( hot +client), according to the workings of a module to the corresponding choice of WIFI module working mode. Module need before use serial debugging software and USB to TTL module send serial command was carried out on the WIFI module configuration (don’t power outages after configuration is complete, as some of the parameters of WIFI module cannot be saved when the power is cut off), mobile phone and WIFI module after establishing a network connection can use the phone APP control relay.

When cell phone equipped with WiFi module sends commands in the following order:
(The default baud rate 115200)

1.  AT+CWMODE=2, namely AP mode is selected.
2. AT+RST, reset.
3.  AT+CIPMUX=1, open multiple connections.
4.  AT+CIPSERVER=1,8080, configure the TCP server, set the port.
5.  AT+CIOBAUD=9600 set the baud rate to 9600. (working in relays to control the baud rate 9600).
6.  AT+CIFSR to view the AP mode IP address, such as the APIP, “192.168.4.1”.
7.  Cell phone WIFI signal connection name starts with AI-THINKER or ESP8266.
8.  In the “TCP connection” address and port into the APP, such as 192.168.4.1 and 8080.
9.  Click on the grey box relays can be controlled.

1. Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time
2. Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay
3. Diode effusion protection;
4. Short response time

1 x ESP8266 WiFi 5V 1-Channel Relay Module

Additional Information:

• Item Code: SEES-3226
• Production Capacity: 1000 NOS
• Delivery Time: 1-2 DAYS
• Packaging Details: Carton Boxes

1. Power input: 4.5V ~ 9V (10VMAX), USB-powered
2. Transfer rate: 110-460800bps
3. Support UART / GPIO data communication interface
4. Support Smart Link Smart Networking
5. Working temperature: -40°C ~ + 125°C
6. Drive Type: Dual high-power H-bridge
7. Don’t need to download resetting
8. A great set of tools to develop ESP8266
9. Flash size: 4MByte
10. Lowest cost WI-FI

Modern Internet development tools such as Node.js can take advantage the NodeMCU with the built-in API to put your idea on the fast track immediately. NodeMCU is built based on the mature ESP8266 technology to take advantage of the abundant resources available on the web.

NodeMCU has ESP-12 based serial WiFi integrated on board to provide GPIO, PWM, ADC, I2C and 1-WIRE resources at your fingertips, built-in USB-TTL serial with super reliable industrial strength CH340 for superior stability on all supported platforms. This module is one of the cheapest available wifi-modules in the market. V3 or Version3 is the latest version of this module. This tutorial, however, will facilitate you to connect all the versions of ESP8266 NodeMcu, i.e V1, V2 or V3.

1. Arduino-like hardware IO – Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware. Code like Arduino, but interactively in Lua script.
2. Nodejs style network API Event-driven API for network applications, which facilitates developers writing code running on a 5mm5mm sized MCU in Nodejs style. Greatly speed up your IOT application developing process.
3. Development Kit The Development Kit based on ESP8266, integrates GPIO, PWM, IIC, 1-Wire and ADC all on one board. Power your development in the fastest way combination with NodeMCU Firmware!

The NodeMcu is an open-source firmware and development kit that helps you to prototype your IoT product with few Lua script lines. The Development Kit based on ESP8266, integrated GPIO, PWM, IIC, 1- Wire and ADC all in one board.

1. Uses CH340G instead of CP2102.
2. Wireless 802.11 b/g/n standard
3. WiFi at 2.4GHz, support WPA / WPA2 security mode
4. Support STA/AP/STA + AP three operating modes
5. Built-in TCP/IP protocol stack to support multiple TCP Client connections (5 MAX)
6. Support UART / GPIO data communication interface
7. Remote firmware upgrade (OTA)
8. Support Smart Link Smart Networking
9. ESP8266 has IO Pin
10. Don’t need to download resetting
11. A great set of tools to develop ESP8266
12. Lowest cost WI-FI
13. FOR Arduino like hardware IO
14. Greatly speed up your IOT application developing process
15. Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
16. WI-FI MCU ESP8266 integrated and easy to prototyping development kit.
17. We provide the best platform for IoT application development at the lowest cost.
18. NodeMCU has built-in USB-TTL serial with super reliable industrial strength CH340G for superior stability on all supported platforms.
19. Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
20. Event-driven API for network applications, which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.

1 x NodeMcu ESP8266 V3 Lua CH340 Wifi Dev. Board

Additional Information:

• Item Code: SEES-3470
• Production Capacity: 1000 NOS
• Delivery Time: 1-2 DAYS
• Packaging Details: Carton Boxes

1. WIFI module: ESP-12E
2. Processor: ESP8266
3. CP2102 Chip
4. Built-in Flash: 32Mbit
5. Antenna: Onboard PCB antenna
6. Peripheral interface: UART/SPI/I2C/SDIO/GPIO/ADC/PWM
7. WiFi protocol: IEEE 802.11 b/g/n
8. Frequency range: 2.4G ~ 2.5G (2400M ~ 2483.5M)
9. WIFI mode: Station / SoftAP / SoftAP+Station
10. Power supply: 5V
11. Logic level: 3.3V

1 x Ai Thinker NodeMCU-ESP8266 Development Board

* Product Images are shown for illustrative purposes only and may differ from actual product.

Additional Information:

• Item Code: SEES21
• Production Capacity: 1000 NOS
• Delivery Time: 2-3 DAYS
• Packaging Details: CARTOON BOXES

1. 802.11 b/g/n Standards
2. Wi-Fi Direct (P2P), soft-AP
3. 1MB Flash Memory
4. Integrated low power 32-bit CPU could be used as an application processor
5. A-MPDU & A-MSDU aggregation & 0.4ms guard interval
6. Wake up and transmit packets in < 2ms
7. Standby power consumption of < 1.0mW (DTIM3)

The ESP-01 ESP8266 Serial WIFI Wireless Transceiver Module is a self-contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor.

Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The ESP8266 module is an extremely cost-effective board with a huge, and ever-growing, community.

This module has a powerful enough onboard processing and storage capability that allows 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, including the front-end module, is designed to occupy minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existence interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions and requires no external RF parts.

There is an almost limitless fountain of information available for the ESP8266, all of which has been provided by amazing community support. In the useful links section below you will find many resources to aid you in using the ESP8266, even instructions on how to transforming this module into an IoT (Internet of Things) solution!

1. The ESP8266 Module is not capable of 5-3V logic shifting and will require an external Logic Level Converter. Please do not power it directly from your 5V dev board.
2. This new version of the ESP8266 WiFi Module has increased the flash disk size from 512k to 1MB.

1. Wi-Fi Direct (P2P), soft-AP
2. Integrated TCP/IP protocol stack
3. It features an integrated TR switch, balun, LNA, power amplifier and matching network
4. Equips integrated PLL, regulators, DCXO and power management units
5. Integrated low power 32-bit CPU could be used as an application processor
6. SDIO 1.1 / 2.0, SPI, UART
7. STBC, 1×1 MIMO, 2×1 MIMO
8. A-MPDU & A-MSDU aggregation & 0.4ms guard interval
9. Wake up and transmit packets in < 2ms
10. Standby power consumption of < 1.0mW (DTIM3)

1 x ESP-01 ESP8266 Serial WIFI Wireless Transceiver Module

Additional Information:

• Item Code: SEES-3225
• Production Capacity: 1000 NOS
• Delivery Time: 1-2 DAYS
• Packaging Details: Carton Boxes

NodeMCU ESP-32S Development Board is a IoT Module based on ESP8266 wifi Module. NodeMCU uses Lua Scripting language and is an open source Internet of Things (IoT) platform.Specification of Node-MCU IoT Module

Specifications:

• Wireless Module – ESP-WROOM-32 with Espressig ESP32 dual core processor with 802.11 b/g/n WiFi and Bluetooth 4.0 LE
• Expansion – 2x 19 pin headers with GPIOs, Analog inputs (ADC), UART, I2C, VP/VN, etc…; breadboard compatible
• USB – 1x micro USB port for power and programming
• Misc – BOOT and EN buttons, red (power) and blue (GPIO2) LEDs

Features:

• Open source IoT Platform
• Easily Programmable
• Low cost & Simple to Implement
• WI-FI enabled

Additional Information:

• Port of Dispatch: Coimbatore
• Production Capacity: 1000
• Delivery Time: 2-3days