Connecting Mobile Apps, IoT & Smart Farm Platforms — JSK
Combining Field Experience with Software Engineering
JSK (Jason Soft Korea) is a specialized technology enterprise developing mobile apps, web services, IoT, and smart farm platforms. Combining field experience with software engineering, we build practical and affordable digital solutions that users can rely on.
Intuitive mobile application development optimized for Android and iOS.
Real-time data monitoring dashboards and efficient web system architecture.
ESP32-based modular sensor nodes and embedded data collection systems.
Field-optimized automation for irrigation, ventilation, and actuation.
Core software & platforms engineered by JSK to deliver practical utility.
Available on Google Play
A smart memory assistant app for Android & Web. Effortlessly manage daily notes, bank accounts, routine reminders, and calendar events.
Coming Soon
An eco-friendly upcycling app turning unused smartphones and tablets into clean, ad-free desk clocks.
Field Testing
A cost-effective smart farm platform with ESP32 sensor nodes, real-time environmental monitoring, VPD analysis, and automated irrigation & ventilation.
Actively field-tested at Siheung Blueberry Farm, Tomato Testbeds, and Gangchon Open Fields.
Real-time collection of temperature, humidity, soil moisture, illuminance, and VPD.
Automated precision watering based on soil moisture conditions and VPD algorithms.
Automated greenhouse window opening and cooling fan control based on threshold temp/humidity.
Cumulative cloud data storage and instant alarm push notifications upon anomaly detection.
Real-time remote control from anywhere via smartphone apps and PC web browsers.
Farm Block is built on a modular IoT architecture connecting sensor nodes, gateways, cloud servers, and web/mobile apps. It seamlessly expands according to farm scale and required actuators.
Collects temperature, humidity, soil moisture & light levels
ESP-NOW data aggregation, automated control & external LTE/Wi-Fi comms
Firebase-based real-time database, auth & push notifications
Real-time monitoring, historical analytics & remote control
Primary operational test site. Operates multi-node sync, automated ventilation, precision irrigation, real-time environmental monitoring, and cloud data logging.
Dedicated environment for validating VPD algorithms, irrigation logic, growth analytics, and UI optimization. Powered by ESP32 C3 Supermini, multi-sensors, and 2ch Relay Board.
Outdoor field testing site for harsh environmental conditions. Validates outdoor remote monitoring, PIR security, ultra-low power operation, and open-field endurance.
Development of Farm Block V1 Industrial Smart Farm Controller
Instead of unnecessarily high adoption costs or hard-to-use technology, JSK develops practical solutions that can be easily operated in the field. As a tech enterprise putting user value first, we are your trusted partner.
We welcome inquiries for JSK solutions, products, and partnership proposals.
Breathe new life into your unused smartphones and tablets.
UpClock turns your unused devices into beautiful, ad-free desk clocks. Select your favorite clock style and start immediately without signup or complex setup.
UpClock is engineered for long-term continuous operation. Even if photos cannot load or internet/weather services are unavailable, core timekeeping continues flawlessly.
* Optional weather updates refresh approximately every hour when online, falling back to cached data during temporary service outages.
* On lower-spec or memory-constrained devices, photo frame features may automatically throttle to prioritize clock stability.
Gido: Your daily smart memory companion
Smart Memory Assistant helps you store important information, organize daily tasks, and recall what you need when you need it. Manage everything from simple notes to appointments, birthdays, daily routines, and account details in one secure place.
Farm Block: ESP32 Modular Controllers + Cloud Remote Management
Utilizing ESP32-based modular controllers and cloud technology, Farm Block provides environmental monitoring, automated actuation, and remote control in one integrated platform. Currently operational and validated at real farms.
