ESP8266 – interesting platform for WiFi enabled projects This small board can act as WiFi module for Arduino (or other µc – Teensy, Netduino, etc) or as standalone microcontroller. With RISC processor running at 80 MHz and with 1MB Flash You can do lot interesting projects. It has 2 GPIO pins to interact with other modules (OneWire).

What is this ESP8266?

• It’s a wireless SOC
• It has GPIO, I2C, ADC, SPI, PWM and some more
• It’s running at 80MHz
• 64KBytes of instruction RAM
• 96KBytes of data RAM
• 64KBytes boot ROM
• It has a Winbond W25Q40BVNIG SPI flash
• It’s a RISC architecture
• The core is a 106micro Diamond Standard core (LX3) made by Tensilica
• The ESP8266 chip is made by Espressif
• Modules bearing this chip are made by various manufacturers

Specifications:

• 802.11 b/g/n protocol
• Wi-Fi 2.4 GHz, support WPA/WPA2
• Super small module size (11.5mm x 11.5mm)
• Integrated 10-bit ADC
• Integrated TCP/IP protocol stack (ipv4 only at the moment)
• Integrated TR switch, balun, LNA, power amplifier and matching network Integrated PLL, regulators, and power management units
• +20dBm output power in 802.11b mode
• Supports antenna diversity
• Deep sleep power <10uA, Power down leakage current < 5uA
• Integrated low power 32-bit MCU
• SDIO 2.0, SPI, UART,  I2C
• STBC, 1×1 MIMO, 2×1 MIMO
• A-MPDU & A-MSDU aggregation & 0.4μs guard interval
• Wake up and transmit packets in < 2ms
• Standby power consumption of < 1.0mW (DTIM3)
• Operating temperature range -40C ~ 125C

ESP8266-01 Features:

• Low cost, compact and powerful Wi-Fi Module
• Power Supply: +3.3V only
• Current Consumption: 100mA
• I/O Voltage:  3.6V (max)
• I/O source current: 12mA (max)
• Built-in low power 32-bit MCU @ 80MHz
• 512kB Flash Memory
• Can be used as Station or Access Point or both combined
• Supports Deep sleep (<10uA)
• Supports serial communication hence compatible with many development platform like Arduino
• Can be programmed using Arduino IDE or AT-commands or Lua Script

Applications:

• IOT Projects
• Access Point Portals
• Wireless Data logging
• Smart Home Automation
• Learn basics of networking
• Portable Electronics
• Smart bulbs and Socketss