Used chip ESP8266 is a highly integrated chip designed for the needs of the new interconnection with the world. Offers a complete and comprehensive Wi-Fi network solution, which allows you to either host the application or use of all network functions from the other wireless implementation.
In the used chip ESP8266 is an integrated microcontroller, which you can / don't use. If you do use it, you don't ever need the arduino to connect. This board has 2 IO ports and UART (RXD TXD).
The challenge is here! Connect to this board a digital thermometer/hygrometer, set the WIFI as the DHCP client and display the temperature on my phone, on the computer or anywhere on the internet! Wireless WIFI thermometer can be manufactured, under 200 Czk. The Internet of things is coming!
SDIO 2.0, SPI, UART
32-pin QFN case
The extremely small dimensions of the PCB
The DPS is an integrated antenna
Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
An integrated RISC processor, on-chip memory and the external memory interface
The module contains a program for communication through serial link using simple AT commands.
Integrated encryption and security WEP, TKIP, AES, and WAPI
Supports APSD for VoIP applications
No external components RF
802.11 b / g / n
Wi-Fi Direct (P2P), soft-AP
Integrated TCP / IP stack
Integrated TR switch, balun, LNA
Integrated PLLs, regulators, DCXO and power management
+ 19.5 dBm output power in the mode of 802.11 b
Integrated 32-bit CPU may be used as the processor of the application
SDIO 1.1 / 2.0, SPI, UART
STBC, 1 × 1 MIMO, 2 × 1 OUTSIDE
A-MPDU & A-MSDU aggregation and 0.4 ms guard interval
The power consumption in standby mode <1.0 mW (DTIM3)
Support 3 modes: AP, STA, AP + STA
This module requires a power supply of 3.3 V for VCC and 3.3 V logic. Is not 5V tolerant.
By connecting the RX or TX on 5V Arduino with this module will be destroyed. You need to use a converter of logic levels, or the Arduino at 3.3 V.
This is a performance version of the WIFI with good throughput environment. At peak times it can be the power consumption relatively high. Needs at least 300mA. Power supply 3.3 V on the Arduino Uno is not sufficient for the power supply of this module. You need to ensure a separate.
Create something for the internet of things!
1 x ESP8266 WIFI wireless module ESP-05 AP + STA (thermometer not included)