Data from sensor (PIR, CO2, smoke/water detectors...) is logged and sometimes sent to user (WhatsApp message, E-mail).
ESP wakes up every 10 minutes and sends data from sensors to the hub (server) via ESP-NOW.

ATtiny sleeps, wakes up on HIGH (test button, PIR, wires for water detection...), sends signal via STX882, goes back to sleep. Device can be battery powered.
- README.md: Change images where necessary.
- Hub:
- Split Hub project into 2:
- Hub: connected to the internet, communication with clients is done via ESP-NOW. First, create alternative version for attiny_stx882 project (Water detection).
- Hub /wo internet: communication with clients is done via radio (HC-12,
SRX882...). Maybe it could have its own wireless network for web app access?- Test if it's possible for 2 ESP32's to communicate /wo (known) WiFi network. If it's possible, create project with 2 simple parts: client (reacts on some simple event e.g. PIR) and server (beeps when ESP-NOW msg from client is received)
- Web App:
- Display cmbSensor value on btnRefresh click so if the web app didn't load completely - click on that button would load web app properly and not only sensor data
- Improve interface (chart.js disappears, shrinks)
- Add 5V buzzer (with transistor)
- Split Hub project into 2:
- Clients:
- SCD30:
- Check if pinButton is pressed before wait for response from airSensor (SCD30)
- Check documantation for setting the right temperature [offset]
- Try to use TimeSlotSend class
- (WIP) TimeSlotSend class - solution for sleep and timely reporting by clients: Client will sleep for e.g. 9 minutes, and then asks hub for current time and then sends data based on that time.
- Use this class in ens160_dht22 project.
- Should (re)trying to send data (when something is wrong) be a part of this class?
- Add more sensor nodes
- Test current consumption in deep sleep and time it takes for ESP32 module to send msg via ESP-NOW for: ESP32-C3 Pro Mini and ESP32 w/ battery connector. Can those modules be used for PIR/water detection? YES. Try detecting water with wires and ESP32 w/ battery connector.
- Replace attiny_stx882 with another device/project: ESP32 w/ battery connector that uses ESP-NOW for communication with the hub. Basis for this projects' code is in spikes/client-sleep_wake-on-pin.cpp
- Prevent device from sending over and over again when test wires are in the water.
- (WIP) Test if device detects water after longer time of inactivity (1-10h hours after it's turned on).
- Test if device works with PIR sensor
- Create project folder: name, code, pictures, README.md
- ATtiny & HC-12
- Is ESP32 hub impaired by calling HC12.available()? Does it interfere with buzzer?
- Remove ATtiny & STX882 from project if STX882 can't work precisely with ATtiny85 as with other microcontrollers
- Microphone (noise levels)
- SCD30:
- my_esp_now.h:
- setPeers(): add new setPeer() call
- setPeer(): set parameters: mac address, sensor type, device
- Increase length of peers array: peer_info peers[]
- Add new members to arrays: StrSensorTypes[], SensorTypesComment[]
- OnDataRecv(): if (p->type == SensorType::...)
- setPeers(): add new setPeer() call
- Enums.h: Add new members to SensorType, Device
- index.html:
- CmbChartParamsChange(): adjusting chart for sensors with temp and hum
- lastChartParam: add default property for new sensor
- https://randomnerdtutorials.com/esp-now-two-way-communication-esp32/
- https://randomnerdtutorials.com/esp-now-two-way-communication-esp8266-nodemcu/
- https://randomnerdtutorials.com/esp-now-auto-pairing-esp32-esp8266/
- https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/
- https://rntlab.com/question/esp-now-gateway-wifi_mode_sta-with-a-wifi-router/
- https://forum.arduino.cc/t/use-esp-now-and-wifi-simultaneously-on-esp32/1034555/16
- ESP-NOW communication works if WiFi channel on the router is set to 1. There might be ways to fix that by using wifi_promiscuous_enable()...



