ok google with arduino

i think this is enough




Control your electronics with an Google Assistant + Arduino UNO + ESP8266

Contents
REQUIREMENTS
PINOUT
PINOUT FINAL
PINOUT FLASHING ESP-01
PINOUT AT COMMAND MODE ESP-01
FLASHING ESP8266 (Optional)
FLASH ESP-01 WITH ESPTOOL
INSTALLATION
Setting up Blynk
Setting up IFTTT
Upload Code and Test
TROUBLESHOOT
SET ESP-01 BAUD RATE TO 9600 VIA AT COMMAND (Recommended)




REQUIREMENTS
Android phone Marsmallow or higher or Apple phone (for Google Assistant)
IFTTT Account
Blynk App Account
Arduino UNO
ESP8266 (ESP-01) WiFi Module
Some Jumper Cables
Relay SRD-05VDC-SL-C (Optional)
USB TTL Serial (Optional)
5V to 3.3V Logic Converter (Optional)
PINOUT
Use the PINOUT FINAL if you done with anything in this project.

PINOUT FINAL
The basic pinout of this project.

UNO	ESP-01
D2 (as TX)	RX
D3 (as RX)	TX
GND	GND
3V3	3V3
3V3	EN
UNO	LED
D7	ANODE (+)
GND	CATHODE (-)
UNO	RELAY
D8	IN
5V	VCC
GND	GND



PINOUT FLASHING ESP-01
Use this pinout only when you need to flash your ESP-01 Firmware

ESP-01	USB TTL
TX	RX
RX	TX
GND	GND
IO2	GND
3V3	3V3
EN	3V3
PINOUT AT COMMAND MODE ESP-01
Use this pinout when you need to interact with AT Command only

ESP-01	USB TTL
TX	RX
RX	TX
GND	GND
3V3	3V3
EN	3V3
Then use Serial Monitor from Arduino IDE to interact with AT

FLASHING ESP8266 (Optional)
Use this if your ESP8266 have old or deprecated firmware installed. Remember to use PINOUT FLASHING ESP-01 for your jumper cable pinout in this step.

FLASH ESP-01 WITH ESPTOOL
FIRMWARE ESP-01 :

AT V1.6.2
SDK V2.2.1
Flash SDK First > Then Flash AT Afterward

esptool.py --port /dev/ttyUSB0 --baud 115200 write_flash --flash_size 1MB --flash_mode dio <MEMORY ADDRESS 0> <FILE-0.BIN> <MEMORY ADDRESS 1> <FILE-1.BIN> <MEMORY ADDRESS N> <FILE-N.BIN>
Memory Address :

File	Address
boot_v1.2.bin	0x00000
user1.1024.new.2.bin	0x01000
esp_init_data_default.bin	0xfc000
blank.bin	0x7e000 & 0xfe000




INSTALLATION
Setting up Blynk
Follow instruction on http://blynk.cc/getting-started/
Download and install Blynk App for Android or IOS
Install Blynk Library for Arduino IDE
Open Blynk App
Create 'New Project'
Choose 'Arduino UNO' and 'WiFi' then click 'Create'
Get the Blynk Auth Token. Note it
Click on + sign on the top and one Button
Click on Button and set the pin to 'Digital' and 'D7'. Set pin values to 1 and 0. Set switch to 'Push'
Create same as step 5 for D8 pin
Setting up IFTTT
Register IFTTT account
Create Trigger (IF)
Search Google Assistant
Select 'Say a phrase with a text ingredient'. Enter everything you need.
Choose Action (THEN)
Search Webhooks
Click on 'Make a web Request'
Set the action
URL
http://blynk-cloud.com/YourBlynkAuthToken/update/D7
Replace YourBlynkAuthToken with your Auth Token that you get from Setting Up Blynk step.

Method
PUT
Content Type
application/json
Body
["1"]
and accept etc. That body part decides what you put in D7 pin. Apparenly this will make the led light up. Then you can define another IFTTT Applet to write ["0"] on the pin to turn it off. And create again for D8 pin.

Upload Code and Test
Don't forget to import the Blynk Library to your Arduino IDE. You can follow this instructions for import the library to your Arduino IDE. Use OkGoogleArduino.ino sketch code. Don't forget to edit this variable:

char auth[] = "8f180320xxxxxxxxxc458c50faa";
char ssid[] = "iPhone 5S";
char pass[] = "11211111";
Replace it with your Blynk auth key, WiFi access point, and WiFi password. If your WiFi has no password, then use this.

char pass[] = ""