
No Sensors? Turn Your Smartphone into a Powerful Grow Tool
Did you know that you have one of the most powerful grow tools already in your pocket? Smartphones helped elevate simple grow spaces into smart grow rooms. Itโs a handy tool with capabilities of tracking growth progress with photos, documenting a grow log with digital tools, and apps designed to provide sensory data. Utilise the sensory data to maintain optimal growth conditions and improve skills for the next grow.
Tap the power of your smartphone using these tips and make it one of your essential grow tools.
Collecting sensory data with your smartphone
Adding sensors to a grow tent helps provide information about the climate and soil conditions. Many sensors feature Bluetooth capabilities, making sensory data available directly on your smartphone. Itโs one of the most common ways to use a smartphone when cultivating cannabis at home.
But what if you donโt have sensors available? Youโre in luck because most smartphones have capabilities that mimic the results provided by some sensors. A smartphone can replace some sensors for a more budget-friendly grow tent setup.
The best uses for a smartphone in your grow are:
- Light sensor apps
- Photography

Light sensor apps
Light is one of the best sensory data to capture using a smartphone. Light meters measure the light intensity, typically at the canopy level. Cannabis plants require lots of light to produce massive yields. However, excessive or inadequate light can slow growth, cause leaf burn, dry your plant, and other negative effects. Avoid these issues by ensuring your plant consistently receives the optimal amount of sunlight at each growth stage.
Some of the popular grow light meter apps on the smartphone are:
These light meter apps measure Photosynthetic Photon Flux Density (PPFD), which tracks the light intensity for photosynthesis. Additionally, Photosynthetically Active Radiation (PAR) measures light in a specific wavelength range used for photosynthesis. These values change as your cannabis plant progresses through the grow cycle. For example, the flowering stage requires much more sunlight and should have higher meter levels.
Place your smartphone at the canopy of your grow tent to capture data of the most intense light on your plant. Be sure to record the data in a grow log.
Photography
Your smartphone camera is another useful feature that makes it such a valuable tool in a home grow tent. Newer smartphones have a camera quality that rivals the top cameras on the market. No need to spend euros on overpriced camera equipment. Just open your camera app and start exploring your plant.
Cameras provide data for:
- Examining the health of your cannabis plant
- Tracking plant growth patterns
- Preventing stress of diseases
Zoom is your best friend when it comes to using your smartphone camera in a grow tent. Smartphones with excellent zoom capabilities can capture images that are difficult to spot with the naked eye. Photos taken up close can reveal leaf damage, examine trichome production, and more. Any abnormalities you spot can be addressed before they become a larger issue.
Photos are also one of the best ways to document the progress of your cannabis plant. Include daily photos in your grow log to review the state of your plant at a particular stage of the grow cycle. Videos can also be effective in monitoring your plantโs growth progress. Time-lapse clips can show how your plant is growing or confirm issues like wilting and drooping leaves.
Alternative uses for a smartphone
Sensory data isnโt the only thing your smartphone is useful for. Itโs become a handy tool for growers using it for various tasks when cultivating cannabis.
- Measurements
- Timers
- Documenting
Effective documentation of your cannabis plant includes taking measurements throughout the grow cycle. Your daily grow log should include accurate measurements from the seedling stage to harvest. Measuring the size of the buds is also helpful when note-taking. If you donโt have a ruler on hand, you can download a ruler app for the smartphone. Digital rulers are accurate for measuring your plant. Be sure to use the correct measuring units each time you measure.

Growing cannabis is an around-the-clock task. It required constant checks and maintaining the right light and water schedules corresponding to the growth stage itโs in. Ease your mind by setting a timer on your smartphone to indicate when itโs time to switch the lights for the dark stage, water your plant, etc. Timers are effective reminders in case you donโt have automation built into your grow setup.
Smartphones are the best for documenting your grow. Consistent documentation helps improve future grows by providing details of your past experience. Smartphones enhance note-takingwith digital tools that make it easy to track data over time and attach multimedia, including photos, voice notes, and videos.
Smart growing with your smartphone
Smartphones are useful for a budget-friendly home grow room setup. It minimises the amount of equipment necessary, yet provides valuable information that can be used in future grows. Use your smartphone to track growth data and sensor data on your next grow.
Looking for your next cannabis seed to grow? Check out our collection of 40+ premium cannabis seeds.
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