Tomoyuki Sakurai is a bilingual (native Japanese, fluent English) IT security specialist and technical translator with over two decades of experience in system administration, network engineering, and information security. He has hands-on expertise implementing ISO 27001-compliant systems, incident response, penetration testing, and managing large-scale networks using OSPF, IPSec VPN and DNS. As an embedded systems contributor on ESP32/ESP8266 projects, he’s ported drivers, fixed architecture-specific issues, and added a SPI-based LED strip driver, showing practical firmware and IoT proficiency beyond traditional security roles. His background spans enterprise roles (including Microsoft) and long-term consulting, plus community work around OpenBSD and makerspace initiatives in Siem Reap, reflecting a mix of enterprise rigor and maker curiosity. Based in Siem Reap, Cambodia, he combines deep technical troubleshooting with polished translation and proofreading skills, bridging technical detail and clear communication across languages and cultures.
Contributions:50 reviews, 405 commits, 203 PRs in 3 years 4 months
Contributions summary:Tomoyuki primarily focused on porting and adapting existing drivers for various sensors and devices, including DS1302, OneWire, ultrasonic sensors, DHT, HX711, and others, to support both ESP32 and ESP8266 microcontrollers within the ESP-IDF framework. They also addressed platform-specific issues such as header file locations and critical section management for the different architectures. Furthermore, they corrected format overflows in examples, and added/modified the examples and their Kconfig files to better fit the architecture. They introduced a new SPI-based LED strip driver (led_strip_spi) and enhanced its functionalities.
Captive Portal for ESP32 that can connect to a saved wireless network or start an access point where you can connect to existing wifis.
Role in this project:
Embedded Systems Engineer / IoT Developer
Contributions:13 commits, 1 PR, 4 comments in 9 days
Contributions summary:Tomoyuki contributed to the development of an ESP32 Wi-Fi manager by making it an ESP-IDF component, enabling better integration with the ESP32 platform. They added initial support for the ESP8266 RTOS SDK, demonstrating broader platform compatibility. The user also addressed build issues and removed unnecessary includes and static files within the project, enhancing code quality and maintainability.
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Tomoyuki Sakurai - Japanese Fact Checker at Outlier