Custom firmware and prototypes
Have a sensor, a board or an idea? Wyrá writes the firmware and builds the first working version, documented and tested on real hardware.
What we do
Hardware, firmware and the math behind them
Embedded firmware
ESP32 (classic and C3) and Arduino: Wi-Fi and Bluetooth, displays, setup web pages and settings stored in flash.
IoT monitoring
Sensor networks that report JSON over MQTT, with network time and topics ready for Home Assistant.
Audio devices
Digital audio with I2S converters, streamed over TCP or received from phones over Bluetooth A2DP.
Scientific computing
Simulations and numerical methods in C++ and Python, data analysis and machine-learning prototypes.
How it works
Three steps, no surprises
Tell us what you need
A short email: what it should do, where it will live and any hardware you already have.
Scope and quote
We agree on features, timeline and price before any work starts.
Working prototype
You get the code, wiring notes and a demo running on real hardware.
Recent work
See it in practice
Server Room Monitor
Nine climate sensors and three air-conditioner current sensors on an Arduino Mega, reporting over MQTT.
Read the case studyWyrá Audio Hub
An ESP32 stereo audio interface with Wi-Fi streaming, Bluetooth playback and a hardware mode switch.
See the Audio HubGet in touch
Let's build the first version
Email a few lines about your project. Replies in English or Portuguese.