Smart agriculture

CocoaMate Mini

Cost-effective ESP32 handheld monitor with a touch TFT display and Wi-Fi cloud transmission.

Carry cocoa monitoring into the field and processing area. CocoaMate Mini uses an ESP32 and touch-enabled TFT display to show current sensor readings locally, with Wi-Fi transmission to the cloud. It covers the same soil, air, solid-temperature, grain-moisture and pH measurement categories as CocoaMate Pro in a cost-effective handheld format.

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Specifications

Hardware, connectivity, power and expansion details.

Controller: ESP32
Display: TFT display with touch
Form factor: Handheld
Connectivity: Wi-Fi
Data transmission: Sensor readings transmitted to the cloud over Wi-Fi
Soil sensor: Seven-in-one soil sensor
Soil nutrients: Nitrogen (N), phosphorus (P) and potassium (K)
Soil conditions: Soil temperature, moisture, pH and electrical conductivity (EC)
Air conditions: Air temperature and relative humidity
Solid temperature: Solid-temperature sensor readings
Grain moisture: Grain-moisture sensor readings
pH measurement: pH sensor readings
On-device view: Current NPK, soil temperature, soil moisture, soil pH, EC, air temperature, humidity, solid temperature, grain moisture and pH readings
Applications: Crop, fermentation and drying monitoring

Core features

What it can do.

ESP32-based handheld design
TFT display with touch interaction
Current sensor readings directly on the device
Wi-Fi transmission of readings to the cloud
Seven-in-one soil measurements: NPK, temperature, moisture, pH and EC
Air temperature and humidity monitoring
Solid-temperature, grain-moisture and pH sensor readings
Cocoa crop, fermentation and drying monitoring

Suitable applications

Where it fits.

Handheld crop checksSoil nutrient monitoringFermentation spot checksDrying-area monitoringWi-Fi cloud reportingESP32 sensor education

Communication and interfaces

How it connects.

These are the supported hardware interfaces and protocols stated for this product.

Touch TFT display

View current measurements and interact with the device through its touch-enabled screen.

Seven-in-one soil sensor

Collect nitrogen, phosphorus, potassium, soil temperature, soil moisture, soil pH and EC readings for field checks.

Air and processing sensors

Read air temperature and humidity, solid temperature, grain moisture and a separate pH sensor for the relevant monitoring task.

Wi-Fi cloud connection

Transmit sensor readings to the cloud when connected to a suitable Wi-Fi network.

Student view

How to understand this product.

Learn how an ESP32 combines multiple sensor readings, a touch display and Wi-Fi connectivity in a portable monitoring product.

What you can learn

Reading and presenting multiple sensor values with an ESP32
Understanding NPK, soil moisture, soil temperature, pH and EC
Building touch-screen measurement views
Sending local sensor readings to a cloud service over Wi-Fi
Choosing measurements for crop, fermentation and drying stages

A simple project flow

Connect the appropriate sensors and take a reading at the crop or processing location.
Review current values on the TFT touch display.
Use the Wi-Fi connection to transmit readings to the cloud for remote review.

Real-world applications

Example projects showing what this product can read, control and report. Each requires the appropriate sensors, connected equipment and application software.

Handheld cocoa field checks

Example: carry the device between sampling locations and use the seven-in-one soil sensor to check NPK, soil temperature, moisture, pH and EC. Review current values on the touch display and transmit readings over Wi-Fi when a network is available.

Fermentation spot checks

Example: use the solid-temperature and pH sensors to inspect a fermentation batch. Read the measurements alongside air temperature and humidity on the handheld display, then send readings to the cloud to support operator review.

Drying-area monitoring

Example: measure grain moisture and surrounding air temperature and humidity at a drying location. Workers review current readings on the device and use the cloud connection to share measurements while assessing progress against their process targets.