The fundamental function of a #WiFimodule is to give any microcontroller access to a Wi-Fi network. The number of IoT devices is scaling up exponentially and, stable Wi-Fi connectivity is essential for the working of these IoT devices. Wi-Fi modules usually encompass multiple input-output pins of ADCs, DACs, timers, serial communication interfaces, etc. These modules are chosen depending on the requirement of a single or host processor plus a Wi-Fi module. Here are some of the popular Wi-Fi modules that will aid in a wide range of IoT projects,
ESP8266 - Wi-Fi Modules for IoT Projects
ESP8266 Wi-Fi module was produced by Espressif Systems. It has a full Transmission commission protocol and Internet protocol (TCP/IP) stack and enables any microcontroller to connect with the available Wi-Fi network. It is made of a 32 bit RISC microprocessor with a maximum clock speed of 160MHz. This module has 17 GPIO pins, some of which are UART dedicated. ESP8266 module operates in a wide temperature range and encompasses standard digital peripheral interfaces, power amplifiers, antenna switches, etc.
CC3200
This Wi-Fi module was produced by Texas Instruments. The CC3200 Wi-Fi module has a 32 bit ARM cortex M4 Wireless microcontroller unit with a processor speed of 80 MHz. There are about 27 individually programmable multiplexed GPIO pins. It has 256KB RAM space. CC3200 contains TCP/IP and TLS/SSL stacks along with multiple internet protocols. Peripherals like UART, SPI, I2S, I2C, ADC, etc. enable the usage of this Wi-Fi module in the high-end applications of IoT.
pcDuino
This Wi-Fi module has an ARM Cortex A8 processor with a 1Ghz processing speed. PcDuino comes with 1GB DRAM and 2GB flash memory. The functioning of this Wi-Fi module is almost similar to a conventional PC Platform with a reliable operating system. It has 14 GPIO digital pins. The module supports both Ubuntu Linux and Android 4.0 ICS software. This Wi-Fi module can be used with Arduino, Raspberry Pi and, other boards in IoT projects.| Wi-Fi Modules for IoT Projects |
SAMW25
SAMW25 was produced by Microchip. This has an ARM Cortex-M0 plus microcontroller unit with high power efficiency. The module has 8 Mbit flash memory and the firmware memory allows OTA up-gradation. SAMW25 has TCP/IP protocol stack applications and it is a fully certified IEEE 802.11 b/g/n IoT network controller. It can be used in IoT applications integrated with network stack protocol. This module provides security protocols like Transport-Layer Security (TLS).
Written by-
Name- Nagashree R Nadig
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Informative and concise! LearnElectronics India always delivers quality content.
This blog post by Learn Electronics India exceeded my expectations. The author's ability to break down complex concepts into digestible chunks made learning about Wi-Fi modules a breeze. It's evident that a lot of effort went into creating this valuable resource. Thank you for sharing your knowledge.