The week on the bench · Monday to Sunday, UTC
Week 36, 2026 · 31 August to 6 September
10 entries published: 4 tools, 4 builds, 1 guide, 1 news. This page lists what was published; it is not a newsletter issue.
The week as a scope trace
One channel per kind, one pulse per entry at the hour it was published. Taller pulses have more points.
Build of the week · BB-0192
Tide & Wind Tracker: byte-exact hardware-in-the-loop tests for e-paper
Tide & Wind Tracker shows tides and wind on an M5Stack PaperColor and tests its e-paper rendering on the ESP32-S3 itself. Test firmware renders fixtures sent over USB and returns the canvas bytes for comparison with golden images. Claude Code iterated against those tests while a person approved every change. The README has a photo of it running.
Tools4
All tools54 d ago
klipper-mcp: watch and drive a Klipper 3D printer from an MCP client
klipper-mcp connects Claude or another MCP client to a Klipper 3D printer through Moonraker's HTTP and websocket APIs. Its 14 tools read status and history and control temperatures, prints and G-code; control tools preview first and act only when confirmed. A separate recorder logs how each print ended. The README names no printer it was tested on.
Claimed57 d ago
Palmimo DevKit: SDK and MCP server for a six-legged tabletop robot
Jizai's Palmimo DevKit exposes Palmimo, a six-legged tabletop robot with 21 serial-bus servos, to Claude Code and other MCP clients. A Python SDK maps LLM tool calls to walking, waving, looking, face changes and speech. Every motion can run as a compute-only dry run first. README GIFs show the physical robot bowing and waving.
Shown working57 d ago
Agent Debug Probe: an RP2040 probe that gives agents power, reset, SWD and UART
Agent Debug Probe connects a coding agent to a target through an RP2040 probe and MCP adapter. The agent can switch target power and USB data, drive reset and boot straps, and use SWD/JTAG and UART. A validation report dated 8 August logs bench tests of the fabricated board, including an 8.66 MB UART transfer to a Zynq target.
Shown working58 d ago
Agent Fingers: a stock Pico 2 as a signal instrument and debug probe for agents
Agent Fingers runs on a stock Raspberry Pi Pico 2 as a signal instrument and CMSIS-DAP debug probe for AI agents. It offers eight digital channels, ADC capture, PWM, UART, I2C and SPI, plus SWD and JTAG for STM32 and ESP32 targets. Outputs need an expiring arm lease. The README shows no hardware runs.
Claimed
Builds4
All builds55 d ago
Session Beacon: a USB status light for parallel Claude Code sessions
Session Beacon shows every Claude Code session on a 1.8-inch ST7735 screen and turns a row red when that session waits on a prompt. A Python daemon fed by Claude Code hooks sends updates over USB serial to an Arduino Nano ESP32 or a Waveshare RP2040-Zero. Setup is documented for Windows only. README photos show the finished beacon.
Shown working55 d ago
Tide & Wind Tracker: byte-exact hardware-in-the-loop tests for e-paper
Tide & Wind Tracker shows tides and wind on an M5Stack PaperColor and tests its e-paper rendering on the ESP32-S3 itself. Test firmware renders fixtures sent over USB and returns the canvas bytes for comparison with golden images. Claude Code iterated against those tests while a person approved every change. The README has a photo of it running.
Shown working55 d ago
Axiometa Genesis Mini: a newcomer vibe-codes and flashes a reaction game
Jesse Lawrence, new to hardware, used plain-English prompts in Axiometa Studio to generate firmware for the Axiometa Genesis Mini starter kit and flash it. Studio is the vendor's browser tool. The 10-minute video keeps the unboxing and his fumbling, and ends with a simple reaction-time game running on the kit.
Shown working57 d ago
Claude Code identifies three unlabeled ESP32 boards and writes firmware for each
Creator Magic plugged three unlabeled ESP32 boards into a Mac one at a time and had Claude Code identify each over USB. Claude then wrote different firmware for each: a sea-conditions display, a Bluetooth audio spectrum analyzer and an e-paper sound picture. The 23-minute video shows all three running and a display offset Claude diagnosed from a photo.
Shown working
Guides1
All guides59 d ago
An Orange Pi rig that flashes and resets a Raspberry Pi CM5 for a coding agent
Sergio Marin built a flash lab in which an Orange Pi 3 LTS controls a Raspberry Pi Compute Module 5 for a coding agent. Through transistors it presses the power button and sets the boot mode, and it handles USB flashing and the serial console. He writes that clean flashes exposed a Wi-Fi bug a saved profile had hidden.
Claimed
News1
All news55 d ago
EEBench grades agents on circuit design in atopile; Claude Opus 5 leads at 61.6%
The atopile team published EEBench, a benchmark that grades agents on 13 circuit-design tasks written in atopile. The harness builds each design and runs SPICE checks at worst-case tolerance corners. The post says Claude Opus 5 led V1 at 61.6%. One failed design used a 22 uF capacitor that gave about 11.4 uF under bias. V1 is simulation only.
Claimed
