Projects & Research | Dewicon

Services

Projects and Research

Last years I've been working with following technologies and projects.

The Yocto Project

+ 10 years experience in setting up Yocto projects and embedded linux plumbing
Multiple SOC implementations: NXP i.MX6, i.MX8, i.MX9, TI AM6xx
Multiconfig Arm Aarch64 Cortex-M x86

Zigbee

Using Silicon Labs chips and SDK
NCP interface gateway
PoC Sensor Devices

Bluetooth BLE, Mesh

Using Silicon Labs chips and SDK
Using Nordic Semiconductor chips and SDK
Normal nodes, friend and LPN
Custom integration NHC with gateway interface

Linux Kernel

In depth knowledge with over 15 years experience
Setting up ARM SOC platforms NXP iMX6,8,9, TI AM3352, AM62x, AM62A
Device-tree (overlays), u-boot interaction, fit
Custom driver development (e.g. DSA ethernet switch)
Board bring-up, hardware / software debug
U-boot interaction

U-Boot

In depth knowledge with over 15 years experience
Setting up ARM SOC platforms NXP iMX6,8,9, TI AM3352, AM62x, AM62A
Custom platform and driver development
A/B upgrade scenarios, linux interaction
Board bring-up, hardware / software debug
Secure boot

Processors and MCU's

In-depth knowledge electronics and firmware
Experience with different toolchains, IDE's, SDK's
Cortex A: NXP iMX6,8,9, TI AM3352, AM62x, AM62A
Cortex M: Silabs, Nordic, NXP
Espressif ESP32
Bare-C, freeRTOS, Arduino, Zephyr
Board bring-up, hardware / software debug
Rapid prototyping
Device firmware upgrades (DFU):
- Via different media OTA, UART, ...
- Failsafe and robust scenarios, A/B upgrading
- Secure boot
Power efficient

Programming, Languages, Tooling

C, Python, Bash scripting
Git repositories
Gcc, Makefiles, CMake, Yocto integration
Automatic build pipelines (Jenkins, CI/CD)
Onboarding scenarios (field and manufacturing)

Human Interfacing

Audio and video integration embedded linux systems
Gstreamer pipelines, hardware optimized codecs
Voice SIP, RTP protocol with H264 video
UI PoC LVGL with AV integration
Image sensor evaluation
Evaluation edge AI implementation Texas Instruments
Wayland - gstreamer subsurface integration in LVGL

Protocols

Wired communication: Ethernet, USB, SPI/I²C, ...
Wireless: WiFi, propriety 868MHz protocols
Networking: Ethernet / IP MQTT / HTTP / SPE ....
Sensors: H/T, CO2, TVOC, ...

Security related

Secure boot
OPTEE
Secure chain of trust
Authentication, encryption, privileges, ...
Manufacturing onboarding

Home Assistant

Enthusiast home user
Used as PoC for many technologies
Testing of IoT devices and technologies
MQTT interfacing to influxDB and Grafana

Have a development requirement that's not listed? Let's talk about it!