This low cost kit for creating battery low power sensors(device) and a gateway for wireless (based on the NRF24) monitoring of soil condition with WiFi data transmission to the IOT platform.
Included controller's firmware files, circuits and boards, case models for 3D printing. No programming required for customization.
Please, read WiKi (RUS) project https://github.com/avkondrat/SmartGarden/wiki