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Wi-Fi module ESP8266 (ESP01 SoC) with ds18b20 temperature measurer firmware

Main idea ( description )

The project is created to connect WiFi module with temperature measurer and PC with TCP protocol in router ( AP ) sphere ( local area network ) and evaluate the temperature level in closed room to show when it would be nice to air.

Steps

  1. Trying to connect ESP01 to router ( AP ) with his SSID and password in Station mode
  2. Prepare network configurations ( physical mode, MAC-address, TCP server IP and local/remote ports )
  3. Trying to connect to TCP server in AP zone with prepared settings
  4. Evaluate the temperature with ds18b20
  5. Send message of temperature measures per 2 seconds

Toolchain and auxiliary programs

  • ESP8266 NONOS SDK
  • GNU Make Builder
  • GCC C Compiler
  • xtensa-lx106 toolchain
  • Eclipse Luna
  • Terminal || Cool Term - to debug and upgrade firmware with USB-UART
  • Esptool || XTCOM UTIL - to create firmware
  • SocketTest - to create TCP server on PC and get the temperature data

Schemes

Debug scheme
USB-UART ESP8266
ACCV0 - 3.3v VCC and CH_PD from resistor of 4K nominal
GND GND ( and GPIO0 while debugging )
RXD TXD
TXD RXD
Release scheme
ds18b20 ESP8266
GND GND
DQ GPIO2 and VCC from resistor of 4K nominal
Vdd VCC
energy ( 2xAA ) ESP8266
ACCV VCC
GND GND

| NB: now we can put our device to any place in radius of router ( AP ) zone to collect temperature data on the PC