ESP32 multisensor

Used libs

• compilators and manulals: http://esp-idf.readthedocs.io/en/latest/get-started/index.html#setup-toolchain
• framework: https://github.com/espressif/esp-idf
• MQTT client: https://github.com/tuanpmt/espmqtt
• DHT11 (modified): https://github.com/lemonhall/esp32_dht11

Setup

Tested on Ubuntu 16.04

Install dependencies

sudo apt-get install gcc git wget make libncurses-dev flex bison gperf python python-serial

Clone this repository to your $HOME directory

git clone https://github.com/hary777/esp32-projekt.git

Run script ./setup_tool.sh This setup $PATH variable for compiler and IDF framework. This is not permanent, setup only actual terminal.

Go to cd projekt_multisensor and run ./run.sh This compile app, flash to ESP32 device and launch serial monitor.

Wifi setup is in macros in file main.c and IP or DNS of MQTT broker.

Useful commands make app build app, make flash build and flash to esp, make monitor run serial monitor. Monitor terminate CTRL+]

Wire connection

ESP32bat - DHT11(4pins)
5V         VDD(pin1)
GND        GND(pin4)
GPIO17     DATA(pin2)

ESP32bat - PIR AS312
VCC(3.3V)  +VSS
GND        -GND
GPIO12     OUT

Motion sensor must be conected to GPIO muxed with RTCIO. RTCIO is used for wakeup.

Program

Set GPIO pins, run wifi, ater wifi get IP run MQTT, after MQTT connected start multisensor task. Multisensor task test wakeup source, if source is timer specified in WAKEUP_TIMER_US then send temperature humidity and motion for sure and go sleep. If source is EXT1(motion sensor) then send motion on, wait 5 second, if sensor still on then still wait and send temperature and humidity. After motion sensor off then go sleep. Blue LED is on when esp running.