Firmware & Embedded
Bare-metal and RTOS firmware for ESP32 and STM32, from drivers to radio stacks.
- ESP32: Wi-Fi, BLE, OTA, low-power modes
- STM32: HAL/LL, DMA, timers, USB
- Sensor and bus integration (I2C, SPI, UART, CAN)
R&D studio
Copperline R&DR&D Outsourcing & Embedded Systems Deployment
Firmware for ESP32 and STM32, PCB design, and React Native or Electron control apps — taken from a one-paragraph idea to a working prototype. Boards can be sourced on demand with optional firmware work.
- Stage
- Research and MVP only
- Platforms
- ESP32, STM32, desktop, mobile
- Currency
- USD, fixed-scope quotes
Funnel
Three steps from idea to firmware
Each step has a fixed deliverable and a gate. Nothing moves forward until the previous gate is documented.
- 01
Idea Validation
Scope, constraints and feasibility in one sprint.
- 02
Hardware Sourcing
Board selection, MOQ checks and supplier routing.
- 03
Custom Firmware
Firmware, control app and handover documentation.
Services
What we do
Three tracks that can run together or independently. All work stops at the prototype stage.
PCB Design & Hardware Engineering
Schematic capture, layout and bring-up for small-batch prototypes.
- 2-4 layer boards with impedance-aware routing
- Power tree and decoupling review
- DFM pass for the chosen fab house
Cross-platform Apps
React Native and Electron/React clients for devices and dashboards.
- BLE and serial transport layers
- Desktop tooling for provisioning and logs
- Data visualisation for telemetry
Selected work
Featured catalog
Boards, apps and firmware from the catalog. Each item links to its own page with the full set of external links.
In stockPaid licenseESP32
ESP32-S3 DevKit Pro
Dual-core ESP32-S3 board with 16 MB flash, USB-C and a pinout tuned for prototyping sensor hubs.
$39
On demandPaid licenseESP32
ESP32-C6 Thread Node
Thread and Zigbee ready node for building-scale telemetry, assembled on demand with firmware flashing.
$59MOQ 10
DigitalFreeNo MCU
Serial Scope Desktop
Cross-platform serial plotter and protocol decoder for bring-up work. MIT licensed, built with Electron.
On request
DigitalPaid licenseNo MCU
Field Console
Diagnostics console for deployed devices: log streaming, remote commands and session recording.
$19
Pricing
Fixed-scope packages
Starting points, not final quotes. Every engagement is scoped before work starts.
Validation Sprint
$1,200
1-2 weeks
Feasibility check for a single idea: BOM sanity, risk list, prototype plan.
- Architecture sketch and component selection
- Cost and lead-time estimate for the first batch
- Risk register with firmware and hardware blockers
- Go / no-go recommendation
Most requested
Prototype Build
$3,500
3-5 weeks
One working prototype: schematic, PCB, firmware and a control app.
- Schematic and 2-layer PCB layout
- Firmware for ESP32 or STM32
- Desktop or mobile control application
- Bring-up report and flashing instructions
Custom Firmware
$900
1-3 weeks
Firmware for a board you already have, including adapters and telemetry.
- Drivers for the sensors and buses on your board
- Telemetry pipeline with a documented transport
- Update path and test harness
- Source code and build instructions
Have a board or an idea that needs firmware?
Send the context — a product from the catalog, a service track, or a price tier. You get a scoped answer with risks and a timeline, not a sales call.