David Tobasura

Embedded Systems Engineer. Firmware, IoT & real-time systems. Also fluent in full stack web.

Electronic Engineer from Universidad Nacional de Colombia, with a specialization in Embedded Systems from Universidad de Buenos Aires.

I design and build low-power embedded systems using Zephyr RTOS, nRF52840, ESP32 and NXP microcontrollers, and develop full-stack applications with React, TypeScript and Node.js to support real world connected products.

Currently building AirNode, an open-source environmental IoT sensor.

Open to new opportunities and interesting projects. Feel free to reach out.

profile

Projects

Airnode

Stack: Zephyr RTOS, nRF52840, React Native, NestJS, PostgreSQL

Low-power environmental sensor that measures air quality and environmental conditions. The system collects temperature, humidity, pressure and particulate matter data (PM 1, PM2.5 PM10), that is transmitted to an app via BLE for data visualization and analysis.

The project focuses on low power operation, enabling continuous monitoring and maximizing battery life. Achieves 13 µA sleep current while sampling every 5 seconds. AirNode includes a complete IoT stack: mobile app, NestJS backend, and PostgreSQL database.

GitHub

Door Phone Upgrade

Stack: FreeRTOS, ESP32-CAM, NXP, UART, MQTT, WiFI

Thesis project integrating an ESP32-CAM and NXP microcontroller to modernize intercom systems with image capture and remote door control.

Youtube Demo

NCO in FPGA

Stack: FPGA, Cortex-A9, VHDL

Implementation of a Numerically Controlled Oscillator on an FPGA, controlled by a Cortex-A9 processor. Demonstrates integration between embedded software and digital logic for signal generation.

GitHub

Temperature & Humidity Monitor

Stack: STM32, BME280, UART, LCD

Reads temperature and humidity using a BME280 sensor and displays data via UART and LCD. Developed using STM32 HAL.

GitHub

Skills

Embedded

Protocols

Full-Stack

Tools

Experience

Treble.ai — Software Engineer

Oct 2025 - Present

Part of the core improvements team, making enhancements across the platform.

Implementing new Whatsapp message types including carousel templates, handling backend, frontend, Meta API integration and webhook processing.

Contact

Whether it's an embedded project or just a conversation — feel free to reach out!