Crop Health
Shows vegetation vigor across the field. In the sample, the corn is very healthy, stable over four weeks, and about 6% above the historical average.
User manual
How to use arandu on WhatsApp
This guide shows how to register a field, read the satellite reports, send crop photos, check weather, and change your settings.
First setup
Register a new field in a few WhatsApp messages
arandu guides you step by step. You only need to send a location from inside the field, confirm the detected boundary, and choose your crop.
1
Send your location
Send a WhatsApp location or Google Maps pin from inside the field.
Ready to register a new field!
📍 Send your location INSIDE the new field:
📎 → Location → Send location
🗺️ You can also send a Google Maps link or dropped pin from inside your field.
📍 Send your location INSIDE the new field:
📎 → Location → Send location
🗺️ You can also send a Google Maps link or dropped pin from inside your field.
https://maps.google.com/?q=-20.910947,-48.818051
🛰️ Searching for your field in satellite images...
2
Confirm the field boundary
When the satellite detection finishes, confirm the field or ask to adjust it.
🛰️ Field detected!
📐 Area: ~23.6 hectares
🗺️ View on map: https://maps.google.com/?q=-20.910947,-48.818051
Is this field correct?
1️⃣ ✅ Yes, confirm
2️⃣ ❌ No, adjust
📐 Area: ~23.6 hectares
🗺️ View on map: https://maps.google.com/?q=-20.910947,-48.818051
Is this field correct?
1️⃣ ✅ Yes, confirm
2️⃣ ❌ No, adjust
2
📝 Field Editor
Draw or adjust your field boundary:
🗺️ https://field-intel-whatsapp.../edit/...
Draw or adjust your field boundary:
🗺️ https://field-intel-whatsapp.../edit/...
3
Name the field and choose the crop
Give the field a simple name and select the crop from the numbered list.
✅ Field saved!
🏷️ Type a name for this field (e.g., North Lot)
🏷️ Type a name for this field (e.g., North Lot)
corn-field-1
✅ Field name saved.
🌾 What crop do you have in this field?
1️⃣ 🌿 Soybean
2️⃣ 🌽 Corn
3️⃣ 🌾 Wheat
4️⃣ 🌱 Pasture
5️⃣ 🍚 Rice
6️⃣ 🥜 Peanut
7️⃣ 🌻 Sunflower
8️⃣ 🎋 Sugar cane
9️⃣ ❓ Other
🌾 What crop do you have in this field?
1️⃣ 🌿 Soybean
2️⃣ 🌽 Corn
3️⃣ 🌾 Wheat
4️⃣ 🌱 Pasture
5️⃣ 🍚 Rice
6️⃣ 🥜 Peanut
7️⃣ 🌻 Sunflower
8️⃣ 🎋 Sugar cane
9️⃣ ❓ Other
2
4
Confirm the planting date
arandu estimates the season start from satellite data. You can accept it or enter the real date.
🌾 Crop registered: Corn
🛰️ Based on satellite data, I estimate your Corn season/planting start was 01/01/2026.
Do you want to use this date?
1️⃣ ✅ Yes, use this date
2️⃣ ✏️ No, I'll enter the real planting date
🛰️ Based on satellite data, I estimate your Corn season/planting start was 01/01/2026.
Do you want to use this date?
1️⃣ ✅ Yes, use this date
2️⃣ ✏️ No, I'll enter the real planting date
1
Main menu
What each menu option does
After setup, reply with the menu number. arandu sends a short answer first and a heatmap image when available.
Sample reports
Report types and example heatmaps
Each report combines a short WhatsApp explanation with a field image. Use the color legend to read the map, and the trend chart below it to see recent movement. The image date tells you how recent the satellite or radar data is.
How to read a report message
Most satellite reports follow the same structure so you can scan them quickly in WhatsApp.
- Headline: the colored status icon and short title tell you the urgency first.
- Current State: what the latest image shows now, including crop condition and growth stage when available.
- 30-day trend: whether the field is improving, stable, or declining over the last 4 weeks.
- 5-year median comparison: how today compares with normal seasons for the same time of year.
- Date: the satellite or radar image date, so you know how fresh the observation is.
Nitrogen Status
Highlights chlorophyll and nutrient signals. The sample shows optimal levels across the field, with no immediate action needed.
Water Status
Checks whether plants are holding moisture. In the sample, the field is well-hydrated and about 12% above the normal moisture level for the date.
Flood Detection
Uses radar imagery to detect standing water even when clouds are present. The sample shows no significant flooding, only about 0.02 hectares of possible standing water.
Erosion Risk
Estimates soil loss risk from slope, rain, cover, and bare soil exposure. The sample shows low erosion risk with protected soil cover.
Extra tools
Photos, weather, and settings
These tools follow the same habit as the satellite menu: pick a number, follow the next prompt, then read the structured answer. Each block below walks through the steps with sample chat bubbles.
Photo analysis
Turn a photo in the furrow into observation, possible causes, scouting ideas, and a quick severity cue.
1
Open photo analysis
When you see the analysis menu, send 6. arandu switches to photo mode and explains how to attach your picture.
6
📷 Send a photo of your crop and a question.
Example: Send photo + “What's wrong with this plant?”
Example: Send photo + “What's wrong with this plant?”
2
Send the image plus one concrete question
Use good light, hold the phone steady, and add text such as What is wrong with these leaves? Close-ups beat distant silhouettes when you need symptom detail.
3
Read the four-part reply
The message summarizes Observation, Possible diagnosis, Recommended actions, and Severity so you can match it with boots-on-the-ground scouting.
- Observation: arandu identifies the crop, visible weeds, leaf damage, yellowing, necrosis, or disease symptoms.
- Possible diagnosis: the sample soybean looks generally healthy, with weed competition and minor insect feeding.
- Recommended actions: scout weeds and insects, check defoliation thresholds, and keep watching for diseases such as rust or leaf spot.
- Severity: arandu summarizes urgency, for example Low when crop health is good and the main risk is weed management.
Weather forecast
One message bundles outlook, rain totals, and farm-planning hints.
1
Request the five-day outlook
Send 8 from the analysis menu. arandu answers with a title line, a short conditions summary, and supporting detail when the weather service returns data.
8
🌤️ Weather Forecast (5 days)
Dry conditions: 0mm total rain expected over the next 5 days.
- Daily outlook: min/max temperatures and sun, cloud, or rain icons for each day.
- Spray windows: highlights acceptable periods and warns when wind is too high for application.
- Irrigation: tells you when to irrigate now if a dry period is expected.
- Farm planning: use the forecast to plan spraying, irrigation, scouting, and field access.
2
Plan spraying, irrigation, and field access
Scan for spray-safe windows, irrigation timing, wind and temperature alerts, then combine that with what you can see from the field gate.
What to scan first
Start with the headline outlook and total rain, then read spray and irrigation sections before loading equipment.
Settings
Settings stay behind option ten so the first nine lines stay focused on agronomy.
1
Open the settings drawer
Send 10 (Change Settings). The analysis list always ends with that option so you can reach field, crop, language, and privacy tools in one place.
10
👋 Welcome back!
📍 Your saved field: North Lot
📐 23.6 hectares
🌾 Crops: Corn
What would you like to do? Reply with the menu number:
1️⃣ ✅ Use same field & crops
2️⃣ 🌾 Change crops only
3️⃣ 📍 Register new field
4️⃣ 🔀 Switch field
5️⃣ 🗑️ Remove field
6️⃣ 🌐 Change language
7️⃣ 🗑️ Delete all my data
📍 Your saved field: North Lot
📐 23.6 hectares
🌾 Crops: Corn
What would you like to do? Reply with the menu number:
1️⃣ ✅ Use same field & crops
2️⃣ 🌾 Change crops only
3️⃣ 📍 Register new field
4️⃣ 🔀 Switch field
5️⃣ 🗑️ Remove field
6️⃣ 🌐 Change language
7️⃣ 🗑️ Delete all my data
2
Pick the numbered row that matches your task
You will see your active field recap plus numbered choices. Each row does one job—use the guide below if you are unsure which number to send.
3
Shortcuts from the analysis menu
You do not always need option 10. From the satellite menu you can also type:
- menu — show the analysis menu again (options 1–10).
- fields — jump straight to switching or removing a saved field.
- help — tips for location sharing, crops, and menu use.
4
Change crops on the active field
Send 2 from the settings menu. arandu shows the crop list; reply with numbers only. Thresholds and growth-stage hints in later reports follow the crops you pick.
2
🌾 *Which crop is in this field?*
Reply with the number (or numbers separated by commas):
1️⃣ Soybean
2️⃣ Corn
3️⃣ Wheat
…
Reply with the number (or numbers separated by commas):
1️⃣ Soybean
2️⃣ Corn
3️⃣ Wheat
…
1, 2
✅ Crops updated. Type menu when you are ready for an analysis.
5
Switch or remove saved fields
Send 4 to switch the active field, or 5 to remove one. arandu lists each saved field with area and crops. After a switch, request a report from the main menu; after removal you may need to pick which field stays active.
4
📍 *Select a field*
1️⃣ North Lot — 23.6 ha — Corn
2️⃣ South Pasture — 8.1 ha — Pasture
0️⃣ ↩️ Back to menu
Reply with the number:
1️⃣ North Lot — 23.6 ha — Corn
2️⃣ South Pasture — 8.1 ha — Pasture
0️⃣ ↩️ Back to menu
Reply with the number:
2
✅ Active field updated.
6
Delete all account data
Option 7 is irreversible. arandu warns you, asks you to continue or cancel, then requires the exact confirmation word in your language before erasure starts in the background.
7
⚠️ *Delete all my data*
This will permanently remove your account data (fields, chat history, logs, and stored images).
1️⃣ Continue
2️⃣ Cancel
This will permanently remove your account data (fields, chat history, logs, and stored images).
1️⃣ Continue
2️⃣ Cancel
1
To confirm, type exactly: *DELETE*
Type *menu* to cancel.
Type *menu* to cancel.
- Register up to 10 saved fields per WhatsApp account. At the limit, remove a field before adding another.
- Switch fields before crop health or water reports so thresholds match the right parcel.
- Removing a field deletes only that boundary—not your whole account. Use option 7 for full erasure.
- More on privacy and deletion: see Terms & privacy → How to delete your data.