Hack The ESP8266 - Speaker Deck

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HACK THE ESP8266 1

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Burak AYDIN [email protected] @burakaydn GDG Ankara 2

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ESP8266 ▪ Small ▪ Powerful ▪ Cheap 3

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ESP8266 ▪ 3.3V ~215mA ▪ CPU: 32-bit, 80MHz ▪ RAM 32Kb, DRAM 80Kb, Flash 200Kb ▪ Wi-Fi 802.11b/g/n (station or AP) ▪ Timers, deep sleep mode ▪ GPIO (2-16) 4

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ESP-xx 5

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Pinout 6

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Firmwares ESP8266 SDK ▪ espressif.com/new-sdk-release/ NodeMCU ▪ github.com/nodemcu/nodemcu- firmware 7

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Flashing esptool github.com/themadinventor/esptool esptool.py --port /dev/ttyUSB0 write_flash 0x00000 nodemcu_integer_0.9.6-dev_20150406. bin 8

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NodeMCU Firmware ▪ Lua interpreter ▪ nodemcu.com/index_en.html 10

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NodeMCU API ▪ node ▪ file ▪ wifi ▪ timer ▪ gpio ▪ mqtt ▪ net,I2C, SPI >node.info() 11

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ESPlorer - github.com/4refr0nt/ESPlorer 12

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Arduino - github.com/esp8266/Arduino ▪ Upload/Flash Arduino like sketches ▪ Most functions work as usual ▪ ESP8266Wifi Library support with some differences 13

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Application Subjects ▪ Smart Power Plug ▪ Home Automation ▪ Mesh network ▪ Industrial wireless control ▪ Baby Monitor ▪ Network Camera ▪ Sensor networks ▪ Wearable electronics ▪ Wireless location-aware devices ▪ Security ID tag 14

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DHT11 and Thingspeak ▪ github.com/ok1cdj/ESP8266-LUA 15

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MQTT Message Queuing Telemetry Transport mqtt.org ▪ Simple Pub/Sub Message Queue ▪ Lightweight and bandwidth efficient ▪ FB Messenger 16

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MQTT Sample ▪ devcenter.heroku. com/articles/cloudmqtt ▪ nodemcu.com/docs/mqtt-module 17

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Others ▪ iot-playground.com ▪ github. com/geekscape/nodemcu_esp8266 ▪ whatimade.today/loading-the- nodemcu-firmware-on-the-esp8266- windows-guide/ ▪ data.sparkfun.com 18

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Tesekkurler! Sorular? @burakaydn [email protected] 19