Goal

build a controlled automatic sprouter that can monitor progress of a long sprouting process, activate moisture devices, have a display and input hw to control the process. it shall sense the moisture level and apply moisture as needed it should sense temperature and may control it with some kind of device it may take photos for hyperlapse video of the sprouting proceedure

Configuration

Hardware

Pinout

Pin Name	Pin Number	BUS
DIGITAL_OUTPUT_RELAY1_PIN	16
DIGITAL_OUTPUT_RELAY2_PIN	17
DIGITAL_OUTPUT_EXT_RELAY1_PIN	27
DIGITAL_OUTPUT_EXT_RELAY2_PIN	14
DIGITAL_OUTPUT_EXT_RELAY3_PIN	13
DIGITAL_OUTPUT_EXT_RELAY4_PIN	23
BUTTON_BACK_PIN	12
ROTARY_ENCODER_MAIN_A_PIN	18
ROTARY_ENCODER_MAIN_B_PIN	19
ROTARY_ENCODER_MAIN_BUTTON_PIN	21
SENSOR_DHT11_PIN	4
LCD_SDA_PIN	25	I2C bus #0
LCD_SCL_PIN	26
RTC_SDA_PIN	32	I2C bus #1
RTC_SCL_PIN	33

Notes

ESP32 relay board pinout

reset into user app - press EN button
reset into bootloader - press and hold EN, press and hold I00, release EN, release I00

Software

notes

PlatformIO

An embedded platform within VSCode https://platformio.org/

vscode vertical selection

Alt+Shift+ mouse drag

vscode automatic formatting

• Install extension "C/C++ Extension Pack" from Microsoft only.
• Generate ".editorconfig" in the root of the project.
  How: open the options CTRL+SHIFT+P and write "format setting" and select "C/C++: Generate EditorConfig contents from VC Format settings"
• Edit the file, reference all options here
• apply formatting using the shortcut ALT+SHIFT+F

serial comm with board

on project ini file, set serial port baudrate with: 'monitor_speed = 115200'

Resources

State Machine fundementals

https://drawio-app.com/blog/uml-state-diagrams-with-draw-io/ https://statesmith.github.io/fundamentals-1/ https://github.com/StateSmith/StateSmith-drawio-plugin/wiki/How-to-Use https://www.lucidchart.com/pages/uml-state-machine-diagram https://sparxsystems.com/resources/tutorials/uml2/state-diagram.html