Part list

[Fernando Garcia]

1 x Arduino mega 2560 or RobotDyn Mega WiFi (Mandatory)

When using this board NodeMCU and ethernet shield or modules are not needed.

1 x TFT touch screen with resolution 400 x 240. (Optional)

1 X TFT shield (Optional)

1 x RTC DS3231 module without external EEPROM (Mandatory)

3 x Temperature sensor DS18B20 (Optional)

1 x Relay board (Optional)

Prototype shield or screw shield (Optional)

Using this screw shield from Aqualed Light, RTC and TFT shield are not needed.

1 x Ethernet shield W5100, module or ESP8266 - WiFi module (Optional)

6 x Float switch (Optional)

6 x Dosing pump (Optional)

Circuits pH, ORP and EC (Optional)

1 x Multiplexer (Optional)

1 x PCF8575 (Mandatory)

Warning: The red module with PCF8575C IC doesn't work properly with ULN transistors array. The correct IC to work with ULN is PCF8575TS

1 x SD card 1 or 2 GB fomatted as FAT (Mandatory)

When using WiFi module without a TFT a SD card module is needed.

[Fernando Garcia]

Links:

RobotDyn Mega WiFi

TFT touch screen 400 x 240

TFT touch screen 400 x 240 on Aliexpress

Temperature sensor DS18B20

Relay board

Float switch

pH circuit

ORP circuit

EC circuit

Dosing pump

Arduino mega 2560 *

TFT shield *

RTC DS3231 Module without external EEPROM*

Prototype shield *

Screw shield *

Ethernet module *

Ethernet shield *

ESP8266*

Multiplexer *

PCF8575 *


* Turn your life easy, buy Ferduino Mega 2560 and forget all this.