➀ The article discusses the design and development of the world's smallest programmable Indus Phone, which integrates a 4G GSM module, a touchscreen display, and a real-time operating system. ➁ The phone features a calculator application and supports LTE and 4G networks. ➂ The article includes a bill of materials and a circuit diagram for the project.

➀ This is the second part of designing the world's smallest phone, Indus Phone, where the UI is integrated with the basic functions of the phone; ➁ The focus is on software and UI integration for the IndusBoard phone, including calling system integration, app design, and calculator app development; ➂ The article also mentions future upgrades to the phone with 4G LTE capabilities and additional functionalities.

➀ This article introduces the design of the world's smallest programmable smartphone, the IndusPhone, which is only 3cm in length. It outlines the selection of components, integration of features like 2G and 4G SIM card support, Wi-Fi, and touch display. The article also covers the design of the basic UI and testing of the GSM module. ➁ The IndusPhone is designed using the IndusBoard coin, which is compact and includes many I/Os and sensors. The UI design includes features for making calls, messaging, and sending messages. ➂ The article discusses the integration of the GSM module, the code for testing GSM functionality, and the construction of the circuit diagram.

➀ Introduces a Wi-Fi-enabled standalone lidar system for flexible deployment in mapping and monitoring. ➁ Combines the IndusBoard with a YD X2 lidar to create real-time wireless maps. ➂ Utilizes a 5V battery and a 3.3V voltage regulator for power, with data transmitted via serial peripherals at 115200 baud rate.

1. Introduces a compact GPS-based speedometer capable of measuring speeds up to 1854 km/h, utilizing the Quectel L86 GPS module and IndusBoard with 3D accelerometer and compass sensor. 2. The device is the smallest of its kind, suitable for various applications including automobiles, bicycles, drones, and robots, providing real-time speed and distance tracking. 3. It enhances safety, performance tracking, and navigation accuracy in multiple domains.