A Standalone Plant Watering System

Smarter watering.
Happier plants.

An automated ESP32 watering system with capacitive moisture sensing, a built-in pump, and a local web dashboard. It learns your plant's rhythm — then takes care of it.

Reserve Yours How it works
PlantWiser device watering a rosemary plant on a sunlit kitchen counter
Live · Reading Soil
Soil moisture · 62%
Scroll
Set it Forget it Let it grow Hand-built on Long Island No subscription, no cloud Works with any indoor plant Set it Forget it Let it grow Hand-built on Long Island No subscription, no cloud Works with any indoor plant
— What It Is
PlantWiser is a standalone ESP32 automated watering system built to handle moisture levels and plant monitoring through a local web dashboard. It uses a capacitive sensor and a MOSFET-driven pump to make sure your plants never hit a dry spell — no app, no cloud, no subscription.
— Live Dashboard

The dashboard your plant deserves.

Open plantwiser.local on any device on your home Wi-Fi. No app to install. No account to make. Just a clean, fast page that shows you everything.

  • Live soil moisture, temperature, humidity & light
  • 24-hour history charts of every reading
  • Manual water button — water on demand
  • Adjust threshold, pump duration, soak time
  • See exactly when your plant was last watered
  • No accounts. No cloud. No tracking.
plantwiser.local
Rosemary
Kitchen counter · Herb
● Healthy
62%
Soil Moisture

Last 24 Hours

Soil Moisture
72°F
Temp
48%
Humidity
2h
Last Water
PlantWiser monitoring rosemary in a rustic kitchen
Feature N°1

It listens before it acts.

A capacitive probe sits in the soil and samples moisture every ten seconds. Air temperature, humidity, and ambient light are tracked alongside — so when your plant needs water, PlantWiser already knows.

Sensor Capacitive Sampling 10s Inputs 4
PlantWiser on a desk with a botany book and small olive tree
Feature N°2

It waters automatically.

When the soil drops below threshold, a MOSFET-driven mini pump delivers a measured dose of water — then waits a soaking period before checking again. No flooding, no guesswork. Manual override available from the dashboard at any time.

Pump Mini · MOSFET Dose Measured Override Manual
PlantWiser on a sunlit garden patio
Feature N°3

It auto-tunes to your plant.

Every plant dries differently. PlantWiser observes for a few days, then automatically adjusts its watering threshold to match — not too often, not too dry. The longer it lives with your plant, the better it gets.

Auto-tune Hourly History 24 hours Memory Persistent
PlantWiser on a balcony at golden hour overlooking a city skyline
Feature N°4

Your dashboard, on your network.

No accounts. No app store. No subscription. Open any browser on your home Wi-Fi and PlantWiser is there at plantwiser.local — with charts, history, settings, and a single button to water your plant manually.

Network Local Only Cloud None Privacy Yours
PlantWiser overlooking a city skyline at golden hour
For the plants
you keep meaning to take care of.
— How It Grows

From seed to schedule, in four steps.

01

Plug it in

Connect the device to USB power, place the soil sensor in the pot, and drop the pump tube into a water reservoir.

02

Connect WiFi

Join the PlantWiser setup network from your phone, pick your home WiFi, and the dashboard goes online.

03

Let it watch

For the first few days, PlantWiser learns your plant's drying rhythm and tunes its threshold automatically.

04

Walk away

Auto-tune kicks in. Your plant gets watered exactly when it needs it. You forget you ever worried.

— What's in the Box

Everything you need, nothing you don't.

PlantWiser Device

Hand-built ESP32 unit with OLED display, in a 3D-printed enclosure.

Mini Water Pump

MOSFET-driven 5V submersible pump with silicone tubing.

Soil Moisture Sensor

Capacitive sensor — corrosion-free, with calibration baked in.

USB-C Cable

Braided power cable, 1 meter — plug into any USB charger.

— By the Numbers

Built like an instrument.

v4.1
Firmware Version
Production firmware. Self-updates over Wi-Fi. Field-tested before every shipment.
288
Data points / 24h
A full day of soil, temperature, humidity, and light history — saved to flash. Survives a power outage.
10s
Sensor Sample Rate
Soil moisture is read every ten seconds — averaged across multiple samples for stability.
0
Subscriptions
No accounts. No login. No "premium tier." You bought it. It's yours.
27
Quality checks
Every unit passes a sixteen-point bare-board QC and a full eleven-point assembly QC before it ships.
∞
Indoor plants supported
Tropicals. Succulents. Herbs. Ferns. Whatever lives on your sill — PlantWiser learns its rhythm.
— In the Wild

A device that belongs on your shelf.

PlantWiser in a kitchen with rosemary
PlantWiser on a wooden counter with cutting boards
PlantWiser on a garden patio table
PlantWiser on a balcony with city view
PlantWiser on a desk with botany books
— Common Questions

Things people ask.

What plants does PlantWiser work with? +
Mainly indoor desk plants — tropicals, succulents, herbs, ferns, anything you'd keep on a sill or shelf. Other plants work too, as long as they're indoors. The device isn't waterproof, so it has to live inside.
What if my Wi-Fi goes down? +
PlantWiser keeps tracking, logging, and watering as normal. It doesn't need Wi-Fi to run — Wi-Fi is just there for the dashboard so you can check on things. When your network comes back, the dashboard reconnects automatically.
Does it actually water the plant, or just monitor? +
It does both. A capacitive sensor reads soil moisture, and a MOSFET-driven mini pump delivers water from a small reservoir whenever the soil drops below threshold. You can also trigger a manual watering from the dashboard any time.
How do I set it up? +
Plug it in, place the sensor in your soil, drop the pump tube in a water reservoir. From your phone, join the "PlantWiser-Setup" Wi-Fi network the device creates, pick your home Wi-Fi from the list, enter the password. Done. The whole thing takes under five minutes.
Do I need an app or account? +
No. PlantWiser runs its own web dashboard locally on your home network. Open any browser on any device on your Wi-Fi, go to plantwiser.local, and you're in. No accounts, no app store, no cloud.
How is the firmware updated? +
Over your Wi-Fi network when updates are released. No special tools, no cables. The dashboard handles it.
What if something breaks? +
Reach out — these are hand-built and we'll make it right. Email PlantWiserBash@gmail.com.
— Why PlantWiser

An honest comparison.

PlantWiser Smart Planters
(typical brand)		 Self-watering pots
(passive)		 Phone reminders
(manual)
Auto-waters when needed ✓ ✓ ~ ✕
Real-time soil sensing ✓ ~ ✕ ✕
No subscription required ✓ ✕ ✓ ✓
Works without cloud / internet ✓ ✕ ✓ ✕
Use with your existing pot ✓ ✕ ✕ ✓
Adapts to each plant ✓ ~ ✕ ✕
Local web dashboard ✓ ✕ ✕ ✕
Hand-built, repairable ✓ ✕ ✓ —

PlantWiser is a tool. Other things are products.

— Made by Hand

Built in this workshop.

Every PlantWiser is soldered, calibrated, tested, and packaged here on Long Island. Not a factory floor. Not a contract assembler. A workshop.

🛠️

Soldering bench
photo coming soon

⚙️

Components

🔬

QC station

📦

Packaging

🌱

Test plants

— A Note from the Maker

PlantWiser is built by hand, in small batches, on Long Island. Every unit is soldered, tested, calibrated, and signed off by the same person who designed it. It's not the cheapest way to keep a plant alive. But it might be the most thoughtful one.

Basher Founder, BashTech
✻

Bring one home for the plant that deserves it.

$129 Limited release · Hand-built to order
Free US shipping Hand-built warranty Reach out if it's not right

Each unit ships fully assembled, calibrated, and ready to plug in. Setup takes under five minutes.

Reserve yours

Send a quick note. We'll get back to you within 24 hours to confirm the order.

We'll reply within 24 hours with payment details and your shipping timeline.

✓

Reservation received

Thanks — we'll be in touch within 24 hours to confirm the order and shipping. Check your inbox (and spam folder, just in case).

— Stay In The Loop

Not ready yet? Get notified when the next batch drops.

One email when a new batch is available. No marketing, no spam, no newsletter — just a heads up so you don't miss it.

✓ You're on the list. Talk soon.

No spam · Unsubscribe any time · One email per batch

About PlantWiser by BashTech

PlantWiser is an automated indoor plant watering system designed and hand-built by Basher at BashTech, a small electronics workshop on Long Island, New York. It uses an ESP32 microcontroller, a capacitive soil moisture sensor, and a MOSFET-driven mini water pump to monitor and water indoor plants automatically.

Who PlantWiser is for

PlantWiser is for indoor plant owners who want a simple, reliable way to keep their plants watered. It is especially useful for: people who travel frequently, busy professionals who forget to water plants, smart home enthusiasts who prefer local-first devices without cloud accounts, makers and tech-minded plant lovers, and anyone who has accidentally killed plants by forgetting to water them or watering inconsistently.

What makes PlantWiser different

Unlike smart planters that require apps, accounts, and subscriptions, PlantWiser runs entirely on your local Wi-Fi network. There is no cloud, no app, no subscription, and no account. Unlike self-watering pots which use passive wicking with no real sensing, PlantWiser uses a capacitive soil moisture sensor to read actual soil conditions every ten seconds and waters only when needed. Unlike phone reminder apps which still require manual watering, PlantWiser does the watering itself with a built-in pump. PlantWiser also auto-tunes its watering threshold to each individual plant after a few days of observation.

Specifications

The device is built around an ESP32-S3 microcontroller with 16MB flash memory and 8MB PSRAM. It runs production firmware version 4.1, which self-updates over Wi-Fi. The capacitive soil moisture sensor is corrosion-resistant. The MOSFET-driven 5V mini submersible pump uses silicone tubing. The OLED status display shows current readings. Power is via USB-C cable. Soil moisture, air temperature, humidity, and ambient light are all sampled every ten seconds, with 288 data points stored per 24-hour period. Data history survives power outages.

Setup and use

Setup takes under five minutes. The user plugs the device into USB power, places the soil sensor in their plant's pot, and drops the pump tube into a small water reservoir like a cup or jar. From a phone, they join the "PlantWiser-Setup" Wi-Fi network the device creates, select their home Wi-Fi from a list, and enter the password. The device then joins their home network and is accessible at "plantwiser.local" from any browser on any device on that network. The dashboard shows live readings, 24-hour history charts, and a manual water button. For the first three to seven days, PlantWiser observes the plant's drying patterns and auto-tunes its watering threshold automatically.

What plants PlantWiser supports

PlantWiser is designed for indoor plants of all kinds: tropicals like monsteras, pothos, and philodendrons; succulents and cacti; herbs like rosemary, basil, and mint; ferns; bonsai; and most common houseplants. The device is not waterproof and is intended for indoor use only.

Pricing and availability

PlantWiser costs $129 USD as a one-time purchase. Free shipping in the United States. Reservations are taken via the form at plantwiser.tech, with units hand-built to order in limited release batches. There are no recurring charges, subscriptions, or hidden fees.

Frequently asked questions

What plants does PlantWiser work with?
Mainly indoor desk plants — tropicals, succulents, herbs, ferns, anything you'd keep on a sill or shelf. The device isn't waterproof, so it has to live indoors.
What if my Wi-Fi goes down?
PlantWiser keeps tracking, logging, and watering as normal. Wi-Fi is only needed for the dashboard. The device functions completely standalone.
Does it actually water the plant or just monitor?
It does both. A capacitive sensor reads soil moisture, and a MOSFET-driven mini pump delivers water when the soil is too dry. Manual watering is also available from the dashboard.
Do I need an app?
No. The dashboard is a web page accessible at plantwiser.local from any browser on the home Wi-Fi network. No app, no account, no cloud.
Is there a subscription?
No. PlantWiser is a one-time $129 purchase with no recurring fees ever.

Contact and ordering

To reserve a PlantWiser unit or ask questions, email PlantWiserBash@gmail.com or use the reservation form at https://plantwiser.tech. Each unit is hand-built by Basher in his Long Island, New York workshop. Typical response time is within 24 hours.