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What is ESP12 NodeMCU?
NodeMCU is a Firmware on ESP8266. It is ESP-12 and it is basically a System on Chip (SoC). It has Lua based firmware which is used to develop IoT based applications. It is easy to work on this inexpensive SoC and make our device smart.
What is ESP8266 used for?
What is the ESP8266? The ESP8266 module enables microcontrollers to connect to 2.4 GHz Wi-Fi, using IEEE 802.11 bgn. It can be used with ESP-AT firmware to provide Wi-Fi connectivity to external host MCUs, or it can be used as a self-sufficient MCU by running an RTOS-based SDK.
What is ESP12 E?
ESP-12E is a member of the "ESP-XX" series. It is a miniature Wi-Fi module used to establish a wireless network connection for a microcontroller or processor. The core of ESP-12E is ESP8266EX. This module has no complicated circuits or programming so using this module is very easy.
Is ESP12E and ESP8266 same?
The ESP12 (or ESP12E, ESP12F ...) is an RF module containing the ESP8266 SoC and other necessary components, like the antenna. With a module like this, it's a lot easier to design products with WiFi capabilities, as you can simply use the module without needing a ton of additional components.
Is ESP8266 a Wi-Fi module?
The ESP8266 WiFi 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 WiFi networking functions from another application processor.
Does ESP8266 need Wi-Fi?
The ESP8266 can be controlled from your local Wi-Fi network or from the internet (after port forwarding). The ESP-01 module has GPIO pins that can be programmed to turn an LED or a relay ON/OFF through the internet. The module can be programmed using an Arduino/USB-to-TTL converter through the serial pins (RX,TX).
Which MicroController is used in ESP8266?
The NodeMCU (Node MicroController Unit) is an open source software and hardware development environment that is built around a very inexpensive System-on-a-Chip (SoC) called the ESP8266.
What is ESP module?
The ESP8266 ESP-01 is a Wi-Fi module that allows microcontrollers access to a Wi-Fi network.
Which is better ESP32 vs ESP8266?
The ESP32 is much more powerful than the ESP8266, comes with more GPIOs with multiple functions, faster Wi-Fi, and supports Bluetooth. However, many people think that the ESP32 is more difficult to deal with than the ESP8266 because it is more complex.
Why is ESP32 so cheap?
The short answer is that it's cheap to manufacture. In particular the RF engineers have done a bunch of very clever things on the Wi-Fi side. You will also notice that in a lot of ways ESP32's design is not like other common microcontrollers. This is generally not by accident, it's to keep the overall cost down.
Why is ESP8266 so popular?
Besides the software progressive contributed by the community, ESP8266 chip and board have been enhanced as well, like chip clock rate acceleration, a new analog digital converter (ADC) to improve the sensitivity. Connecting with soil humidity sensor is a common application.
Is ESP32 better than Arduino?
Yes, the ESP32 is faster and more powerful than Arduino. The ESP32 is a powerful 32-bit microcontroller with integrated Wi-Fi, a full TCP/IP stack for internet connection, and Bluetooth 4.2. It has 10 internal capacitive touch sensors. Arduino Mega and Uno is an 8-bit microcontroller.
Why is ESP8266 so popular?
Besides the software progressive contributed by the community, ESP8266 chip and board have been enhanced as well, like chip clock rate acceleration, a new analog digital converter (ADC) to improve the sensitivity. Connecting with soil humidity sensor is a common application.
Can ESP8266 work without Arduino?
Introduction: ESP8266 Web Server (Without Arduino) A few weeks ago I've created a project with an ESP8266 called: ESP8266 Web Server without an Arduino. That's exactly what you're going to build, if you follow all the steps in this Instructable. It's amazing what you can do with this $4 WiFi Module.
What language is used in ESP8266?
Punyforth — Forth-inspired programming language for the ESP8266. Sming — An actively developed asynchronous C/C++ framework with superb performance and multiple network features. uLisp — A version of the Lisp programming language specifically designed to run on processors with a limited amount of RAM.
How ESP8266 is useful for IoT?
ESP8266 has very low cost and high features which makes it an ideal module for Internet Of Things (IoT). It can be used in any application that require it to connect a device to local network or internet. NodeMCU Development Board/kit v1. 0 (Version2) NodeMCU is an Arduino like device.
What is ESP-12E?
ESP-12E is a Wi-Fi Module featuring a highly competitive package size and ultra-low power technology . ESP-12E can be widely used in a variety of networking, for home automation, industrial wireless control, baby monitors, wearable electronic products, wireless location sensing devices, wireless positioning system signals, and other networking applications.
How much power does an ESP 12E consume?
An ESP-12E module, for example, consumes an average of 70.5 mA when it is fully on (that is, when its WiFi modem and microcontroller are both on) even when the transceiver is inactive (neither receiving nor transmitting).
How to program ESP8266-12E?
Normally, to program the ESP8266-12E, you have to connect certain pins to each other, and to ground and VCC, and a few of the GPIO pins need to be connected correctly. You then connect the TX and RX pins to your USB-to-serial adapters like the FTDI or CP2102 or similar boards.
How many bits does an ESP32 have?
Both chips have a 32-bit processor. The ESP32 is a dual-core 160MHz to 240MHz CPU, whereas the ESP-12E is a single-core processor that runs at 80MHz.
What is the pitch of an ESP-12?
The ESP-12 has a 2mm pitch, which means you cannot access all the pins on a breadboard or a perforated / dot matrix directly, which have a 2.54mm pitch (distance between adjacent pins).
What does "OK" mean on ESP-12?
This is just a hello message, and if the ESP-12 is in the correct mode, it will return an "OK" message.
What is CP2102?
The CP2102 is a USB to serial converter that lets us communicate with the ESP-12 over UART. The CP2102 will be detected as a serial device. If you have used a serial device before, you ideally should not need the drivers.
How to connect ESP8266 to LM1117?
Connect the terminals of the power connector to the LM1117 (SMD), so that you have 3.3V output to supply to the ESP8266 ESP-12. It is good practice to add capacitors across the input and output lines, but I am just going to skip that, since this application is very basic and is non-essential.
What port is api.thingspeak.com on?
The above line opens a connection with api.thingspeak.com on Port 80, to send an HTTP GET request with our data
How to check if ESP-12 is accepting commands?
First, to check if the module has been recognised and is accepting commands, just briefly connect the "REST" pin of the ESP-12 to ground, using a jumper. This resets the ESP-12 and you should see something like the screenshot if this works well.
Is CP2102 straight forward?
The connections between the CP2102 and ESP-12 are straight-forward.
What is an ESP12?
The ESP12 (or ESP12E, ESP12F ...) is an RF module containing the ESP8266 SoC and other necessary components, like the antenna. With a module like this, it's a lot easier to design products with WiFi capabilities, as you can simply add the module without needing a lot of extra components.
Who makes the ESP8266?
The ESP8266 itself, at its core, is a microcontroller with built-in WiFi in a single, small form factor chip. It's manufactured by Espressif and it became very popular among makers due to its excellent Arduino support and affordable price.
What is ESP12E WiFi?
ESP12E WiFi Module is the most common WiFi module in most of the products in nowadays. The modules are smaller in size and have internal programming ability with onboard pins. It has an internal 32-bit microcontroller that can perform multiple communications and output signals. The module is programmable with multiple languages and in most modern IoT devices ESP12E is available for creating and network hub and device. ESP12E has all popular network protocols and security encryption in a single chip with fast speed and low power consumption. The module ESP12E is popular due to its cheapness and it has less ping as compare to any other module.
How many pins are in an ESP12E?
The pins of ESP12E is a stand-alone device. It is just like a microcontroller with WiFi in a small size. There is a total of 22 pins which offer multiple kinds of communication and all of them are:
What devices have ESP 12E?
The device is mostly available in IoT devices. The Laptops and Computers also come with ESP 12E. The wireless control system also has ESP 12E. In smart toys and applications, the module has the best use to control them wirelessly.
How many pins does a SPI module have?
The module offers direct SPI communication with itself. This communication uses four pins for proper communication, which are:
What is the method used to control ESP12E?
To control the device there are two methods, Arduino and FTDI. The Arduino uses UART communication to communicate with ESP12E.
How many I/O pins are there in a TTL?
There is a total of 11 I/O pins. Therefore, these pins can perform multiple kinds of input and output functions that are interfaceable with all the TTL/CMOS devices. All GPIO pins are:
What pin is used to convert analog data to digital data?
The device has a 10-bit ADC pin, which uses 0-1V range to convert the analog data to digital data.
What is the ESP 12F?
ESP- 12F WiFi module is developed by Ai - thinker Team. It contains a ESP8266 and 4MB external SPI flash.
What voltage is the ESP8266?
The ESP8266 is a 3.3V device. So setup all the pins of the power supply to 3.3V (on bot sides) and use only the green marked pins in the pictures. Do not use the 2 pins markend in red (5V).
What port is CP2102 connected to?
Connect CP2102 to computer and identity COM port.
Can you solder an ESP-12F adapter?
It is now time to solder the ESP-12F on the adapter. The 2mm pitch of the ESP-12F is big enough to solder with a solering iron.
What is ESP 201?
Originally named as ESP-12 this module has come to popularity as ESP-201 after the name clash had been discovered. In good old BASIC line adressing style the creators apparently wanted to make sure that no other name clash would occure and added a safety distance to the numbering scheme;-)
How many pins does the ESP8266 have?
This module allows you to access many features of the ESP8266: 11 GPIO pins, one analog-to-digital converter (ADC) with a 10 bit resolution. It also lets you easily configure deep-sleep mode which ( according to this source) lets you run the module for 3 years on two AA batteries. With one drawback: it is not breadboard friendly at all. As for the modules previously described here the antenna is a track on the PCB which delivers good results for Wifi sensitivity.
What is the best module for Arduino?
Which module suits you best depends on your application. If the price and small form factor is important for you and you are looking for a stand alone module with just two GPIO pins, the ESP-01 is your candidate. If you just want cheap Wifi connectivity for your Arduino you might go for the ESP-05. The ESP-12 might be interesting if you have periphery based on SPI or I2C bus or if you just many GPIO pins and you are not afraid of a bit of soldering. The ESP-201 is good for solder-free prototyping on a bread board and allows you to access almost all pins of the ESP8266 chip. But you´ll still need an external serial-to-usb converter and a power supply. In case you want it even easier and the slightly higher price is not a problem I would recommend the NodeMCU V1.0 module for you. The following table summarises this post:
Can you use breadboard adapters for prototyping?
But to use it for prototyping you´ll have to build something around the module. You can order these breadboard adapters or build one yourself, like my colleague Andi did:
Do you need an external power supply for an ESP8266?
I had high hopes on this module since in theory it should make development of applications based on the ESP8266 much easier: less wiring is required compared to any of the other modules, you need neither an external power supply nor a serial-to-usb adapter and two switches allow for easy resetting the module and booting it into flash mode. And it nicely fits into a bread board and lets you wire periphery with the fewest amount of wires imaginable.
