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
You can find the ongoing firmware udpates, based on Arduino IDE, on GitHub:

To 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

Enjoy this project?



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:

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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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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

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

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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