HiGrow plants monitoring sensor

soil moisture, humidity and temperature for monitoring your plants

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HiGrow is a Soil Moisture, Temperature, Humidity sensor. HiGrow communicates with a cloud application for uploading data and the user can check his plants and sensor with an app.It uses ESP32 to powered by lipo battery, a Soil Moisture sensor and a DHT11 Temp and Humidity sensor.HiGrow hardware is almost opensource. We'll publish very soon the instruction to assemble your HiGrow and 3D print the case on http://www.higrow.techYou can find the ongoing firmware udpates, based on Arduino IDE, on GitHub: the ones interested in developing apps working with ESP32 we are also doing a porting of ESP TOUCH Smart Config to Xamarin. So you can integrate the libraries in your cross platform pr

#Installation steps

Firmware is based on Mongoose OS platform once you have installed Mongoose OS the HiGrow firmware project is available from the Library

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  • 1
    Flash the firmware

    We moved the project to Mongoose OS which has a more stable and flexible library for Bluetooth. 

    From Mongoose is really easy to flash your board:

    1. Install Mongoose OS following the instructions here
    2. Connect your device via USB and turn it On (some light should blink :)
    3. Clone the project form library to your dashboard
    4. Build the project and then flash it on the board
  • 2
    Install the app

    app are almost ready, keep you posted

View all instructions

Enjoy this project?



Markus-Rolf wrote 02/18/2018 at 08:30 point

Hi to all,

very nice project this sensor. I would love to test it but I can't get my hardware running because of the header files. Is it possible, that you can also upload the *.h files? I'm not sure where to get them.

Thanks for your help,


  Are you sure? yes | no

Luca Fabbri wrote 02/12/2018 at 21:10 point

Hi everyone, thanks for your support! If anyone has experience with Mongoose OS you can review the code: any improve would be really appreciated!

  Are you sure? yes | no

Marcus Hoffmann wrote 19 hours ago point

Hello Luca, is there any Android App available, yet?

  Are you sure? yes | no

Svirik82 wrote 01/03/2018 at 04:09 point

Hi people, I have a problem with your sketch!
Error during compilation. Can tell me what to do?

I took it from here:

Maybe it's in the DHT sensor library.
which library do you use?
The error is this:

C:\Users\HP_DV7\Documents\Arduino\sketch\HiGrowEsp32\HiGrowEsp32.ino: In function 'void setup()':

HiGrowEsp32:50: error: 'esp_deep_sleep_enable_timer_wakeup' was not declared in this scope

   esp_deep_sleep_enable_timer_wakeup(1800 * uS_TO_S_FACTOR);


HiGrowEsp32:51: error: 'esp_deep_sleep_pd_config' was not declared in this scope

   esp_deep_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);


C:\Users\HP_DV7\Documents\Arduino\sketch\HiGrowEsp32\HiGrowEsp32.ino: In function 'void loop()':

HiGrowEsp32:75: error: 'esp_deep_sleep_enable_timer_wakeup' was not declared in this scope

   esp_deep_sleep_enable_timer_wakeup(DEEPSLEEP_SECONDS * uS_TO_S_FACTOR);


C:\Users\HP_DV7\Documents\Arduino\sketch\HiGrowEsp32\HiGrowEsp32.ino: In function 'void sensorsData(char*)':

HiGrowEsp32:98: error: 'class DHT' has no member named 'computeHeatIndex'

   float hic = dht.computeHeatIndex(temperature, humidity, false);       


We use the library WiFi ver 1.0 from the folder: C:\Users\HP_DV7\Documents\Arduino\hardware\espressif\esp32\libraries\WiFi We use the library HTTPClient ver 1.1from the folder: C:\Users\HP_DV7\Documents\Arduino\hardware\espressif\esp32\libraries\HTTPClient We use the library DHT from the folder: C:\Users\HP_DV7\Documents\Arduino\hardware\espressif\esp32\libraries\DHT (legacy)
We use the library WiFiClientSecure ver 1.0 from the folder: C:\Users\HP_DV7\Documents\Arduino\hardware\espressif\esp32\libraries\WiFiClientSecure exit status 1
'esp_deep_sleep_enable_timer_wakeup' was not declared in this scope

We use the library C:\Users\HP_DV7\Documents\Arduino\hardware\espressif\esp32\libraries\BLE: C:\Users\HP_DV7\Documents\Arduino\hardware\espressif\esp32\libraries\BLE

There may be a problem in the DHT library?

Be so kind as to tell me!
If you need a mail:

  Are you sure? yes | no

Ice2Cool wrote 01/19/2018 at 22:17 point

Try to include following:

#include "esp_deep_sleep.h"

  Are you sure? yes | no

Luca Fabbri wrote 02/12/2018 at 21:15 point

we moved the development to Mongoose OS, you find the code here

  Are you sure? yes | no

Ice2Cool wrote 01/02/2018 at 16:49 point

Hi, im looking into this project and bought two sets of PCB from aliexpress (this is where I stumbled onto it). Before loading any code to it I discover that my two boards does not have the transistor/FET, the 3 pin SMD component in the bottom part (toward soiltail). Does it exist any electrical drawing to this board so that I can investigate the board and its components?



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Luca Fabbri wrote 02/12/2018 at 21:12 point

Hi! could you share a pic? the producer made an initial version which was faulty!

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eok wrote 11/22/2017 at 18:46 point

is there a voltage divider to monitor the battery?

on which pin is it?

are there any more infos about the board?

which sensor is on which pin?

why is the github sketch not maintained?

  Are you sure? yes | no

Luca Fabbri wrote 02/12/2018 at 21:13 point

Not on thi sversion, rev2 is based on Adafruit schematics using LiPO and voltage divider on pin 13

  Are you sure? yes | no

alandonegan wrote 11/01/2017 at 16:48 point

Hi Luca,  I'd be very interested in purchasing one of your ESP32 dev boards for my project, are they available on any other online stores other than

  Are you sure? yes | no

Luca Fabbri wrote 02/12/2018 at 21:13 point

I posted the cheaper link to Aliexpress (they are almost everywhere just type higrow in your favourite repo)

  Are you sure? yes | no

stefanbode wrote 10/28/2017 at 11:31 point

you will get the PCB with the ESp32 onboard. Batterie 18650 and housing are not included. How’re this helps.

  Are you sure? yes | no wrote 10/20/2017 at 19:36 point

20 € for what?

  Are you sure? yes | no

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