Tertill

A mobile companion for Tertill, the home garden weeding robot

We designed, built and released a new app that connects to and controls the Tertill robot, in under five months.

Visit Tertill
The Tertill app’s garden screen beside the Tertill weeding robot.
team members
5
partnership
2021-2022
Two screens of the Tertill app with the garden overview and weeding guides.

The company and product

Tertill Corporation is a consumer products company founded by Roomba inventor Joe Jones and veteran roboticist Rory MacKean, and headed by Helen Greiner, co-founder of iRobot.

Tertill is the world’s first robot designed to weed home gardens autonomously, without long-term human intervention. It is weatherproof and solar-powered.

Industry
Smart home
Country
USA
Company
Startup
Delivered
Companion mobile application

Scope and highlights

Build the MVP of the mobile companion app for the home garden weeding robot in four months, with clear communication based on exact specifications and requirements. The app offers weather updates, with weather predictions planned for a later stage.

Mobile Application Development

  • Bluetooth Low Energy (BLE) integration for seamless communication with the Tertill robot.
  • Real-time control, with live updates on the robot’s state, whereabouts and garden set-up.
  • An app optimised for iOS and Android, with a consistent, high-quality experience on every device.

UI/UX Design Enhancement

  • Extensive research for a user-centric design approach to the UI/UX challenges.
  • Streamlined flows and interactions for controlling the Tertill robot.
  • A cross-platform design strategy.

Cloud Architecture and Implementation

  • A secure and scalable cloud infrastructure on Google Cloud, with Firebase, Cloud Functions, Kubernetes, BigQuery and NoSQL databases.

Technologies

  • React Native (iOS and Android)
  • Firebase
  • Firestore
  • Bluetooth Low Energy
  • Node.js
  • AWS
  • Lambda and serverless
  • BigQuery

Tertill has been featured in notable publications.

  • Forbes
  • Bloomberg

The process

Building the mobile app for the Tertill weeding robot combined strategic planning with rigorous execution. From validating React Native for real-time control to designing a robust system architecture and choosing a scalable technology stack, every step was taken to make the app effective. Cloud infrastructure on Google Cloud, with extensive QA and stress testing, made the app reliable on iOS and Android, and agile methods kept the work close to the Tertill team.

The design stayed user-centric throughout, grounded in research and collaborative workshops that shaped the app’s features around the client’s objectives. A comprehensive design system made it easy to adapt to evolving needs, interactive prototypes supported user testing and decisions, and a cross-platform strategy met the UX requirements of both iOS and Android.

UI/UX design process

  • Research Thorough research tackled the UI/UX challenges and anchored a user-centric design approach.
  • Workshops Collaborative workshops guided the client in shaping the app’s features, in line with their vision and objectives.
  • Design System A comprehensive design system gave a roadmap for adapting to evolving needs, and gave the development team clarity and efficiency.
  • Prototyping Interactive prototypes served for user testing and validating assumptions, supporting informed decisions and stakeholder engagement.
  • Cross-Platform Design A cross-platform design strategy met the platform-specific UX requirements, so the app serves iOS and Android users equally well.

Development process

  • Proof of Concept Validation A proof of concept confirmed React Native was right for the app, especially for real-time control of the robot over Bluetooth Low Energy (BLE).
  • System Architecture Design We designed the system architecture and chose the technology stack, for a strong, scalable foundation.
  • Mobile App Development With React Native, we built a feature-rich app to control and schedule the robot, check its status in real time and follow instructions for setting up the garden.
  • Cloud Infrastructure Setup A secure, scalable cloud infrastructure on Google Cloud, with Firebase, Cloud Functions, Kubernetes, BigQuery and NoSQL databases, supports data management, firmware releases and efficient DevOps practices.
  • Extensive QA and Stress Testing Rigorous testing ensured the app works with the robot on iOS and Android, and stress testing on the robot made the experience reliable and stable.
  • Agile Way of Working With a SCRUM methodology, we worked closely with the Tertill team in two-week sprints. Regular reviews and demos kept stakeholders aligned.

The outcome

Salt & Pepper developed the MVP of the Tertill mobile companion app within four months. The app, for iOS and Android, provides weather updates and will add weather predictions in the future.

The process was thorough, from strategic planning and rigorous execution to extensive QA. React Native for real-time control, Google Cloud infrastructure and agile iterations, with a user-centric design backed by research and interactive prototypes, resulted in a seamless and engaging cross-platform experience.

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