Circuit Cellar Magazine

Circuit Cellar is a monthly print and digital magazine dedicated to embedded systems, microcontroller projects, electronics design, and hands-on engineering. Founded by Steve Ciarcia in 1988 (originally as Circuit Cellar Ink), it has been the go-to resource for serious hobbyists, professional engineers, and makers for over 35 years. In the MicroBasement, Circuit Cellar represents the continuation of the DIY electronics spirit from the BYTE era into the modern microcontroller and IoT age — a publication that still encourages readers to build, debug, and innovate.

History and Founding

Circuit Cellar began as a column ("The Circuit Cellar") written by Steve Ciarcia in BYTE magazine starting in 1981. The column quickly became one of BYTE's most popular features, with detailed, buildable projects using early microcontrollers (Z80, 8051, 68HC11, etc.). When BYTE's format changed in the mid-1990s, Ciarcia launched Circuit Cellar Ink as an independent magazine in January 1996. The "Ink" was later dropped, and it became simply Circuit Cellar. The magazine has been published continuously since then, with Steve Ciarcia as founder and editorial director until his retirement in recent years. Today it is published by KCK Media Corp. and remains a respected voice in embedded engineering.

Focus and Content

Circuit Cellar is project-oriented and deeply technical. Typical articles include:

• Complete schematics and firmware for microcontroller projects
• Embedded design techniques (RTOS, low-power, sensor interfacing)
• IoT and wireless projects (ESP32, LoRa, Bluetooth)
• Analog and mixed-signal design
• FPGA and CPLD applications
• Robotics, motor control, and automation
• High-speed digital design and PCB layout tips
• Debugging and test equipment builds

The magazine avoids beginner tutorials — it assumes readers already know basic electronics and programming. Articles often include source code, parts lists, and real-world testing results.

Influence and Importance

Circuit Cellar has had a profound influence on the embedded systems community:

• It kept the hands-on, build-it-yourself tradition alive after BYTE ended.
• It bridged the gap between hobbyists and professional engineers.
• Many current embedded engineers and product designers cite Circuit Cellar as a major early influence.
• It helped popularize microcontrollers like the 8051, PIC, AVR, ARM, and later ESP32 in the maker community.
• Its in-depth articles provided practical knowledge that was often not available in textbooks or datasheets.

Circuit Cellar remains one of the few print magazines still focused on deep technical content rather than surface-level maker projects.

Publication Details

Circuit Cellar publishes 12 issues per year (monthly). It is available in print and digital formats, with subscriptions starting around $50/year (as of 2026). The magazine also maintains an active website (circuitcellar.com) with archives, forums, and additional resources. Steve Ciarcia's original BYTE columns and early Circuit Cellar articles are highly regarded and still referenced today.

Legacy

Circuit Cellar has outlasted most of its contemporaries from the 1980s–1990s electronics magazine era. It continues to inspire new generations of engineers and makers to dig deep into hardware and firmware design. In the MicroBasement, Circuit Cellar connects the early days of personal computing and microcontrollers to today's embedded and IoT world — a living link to the DIY engineering tradition that started in garages and basements.

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