WiFi module ESP8266 DHT11 + ESP-01, Wifi thermometer and hygrometer

Thermometer and hygrometer ESP8266 DHT11 and shield for connecting WiFi module ESP-01

Technical parameters:

- operating voltage: 3.0–3.6 V DC
- relative humidity measuring range: 20-90%
- temperature measuring range: 0–50 ° C
- relative humidity measurement accuracy: ± 5%
- temperature measurement accuracy: ± 2 ° C

ESP8266 ESP-01 WiFi module
The ESP8266 chip used is a highly integrated chip designed for the needs of a new connection with the world. It offers a complete and complete Wi-Fi network solution, which allows you to either host the application or use all network functions from another wireless implementation.
The ESP8266 chip used has an integrated microcontroller that you may / may not use. If you use it, you don't have to connect arduino at all. This board has 2 IO ports and a UART (RXD TXD).

Product description:

- SDIO 2.0, SPI, UART
- 32-pin QFN case
- extremely small PCB dimensions
- an antenna is integrated on the PCB
- integrated RF switch, balun, 24dBm PA, DCXO, and PMU
- integrated RISC processor, on-chip memory and external memory interface
- the module contains a program for communication via a serial line using simple AT commands.
- QOS management
- I2S interface
- integrated encryption and security for WEP, TKIP, AES, and WAPI
- supports APSD for VoIP applications
- no external RF components

Sew:

- 802.11 b / g / n
- Wi-Fi Direct (P2P), soft-AP
- integrated TCP / IP stack
- integrated TR switch, balun, LNA
- integrated PLLs, controllers, DCXOs and power management units
- + 19.5dBm output power in 802.11b mode
- the integrated 32-bit CPU can be used as an application processor
- SDIO 1.1 / 2.0, SPI, UART
- STBC, 1 × 1 MIMO, 2 × 1 MIMO
- A-MPDU & A-MSDU aggregation and 0.4ms guard interval
- standby power consumption Support for 3 modes: AP, STA, AP + STA