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