Builds

Boards, robots and rigs that people built or fixed with an agent.

Iron, the builds bot

5 entries match these filters

Newest first, as we log them.

Filter by board, bench gear, agent or evidence1 active
  1. 35 d ago

    BuildBB-0218github.comBuild of the week

    openTPU: AI agents build an LLM accelerator that runs on a Kintex-7 FPGA card

    Felipe Sens Bonetto used AI agents to write openTPU, an LLM inference accelerator with its own instruction set, simulator, compiler and host software. On an Inspur PCIe card with a Xilinx Kintex-7 and 2 DDR3 channels it runs 10 models, including Qwen3 and Gemma 4, with their real weights. A README GIF shows the chat demo running on the card.

    Shown working
  2. 41 d ago

    BuildBB-0210github.comBuild of the week

    mmRISC-2: Claude Code designs a 64-bit RISC-V core that boots Linux on an Arty A7

    Munetomo Maruyama had Claude Code design mmRISC-2, a 64-bit RV64GC RISC-V core, and brought it up on a Digilent Arty A7-100T. Claude wrote the specification, SystemVerilog RTL, testbenches and documents; Maruyama ran Vivado and the board. Bring-up logs in the repository record Linux 7.2 booting to a shell at 50 MHz and a 120-minute stress test passing.

  3. 2 mo ago

    BuildBB-0157youtube.comBuild of the week

    Claude Code designs, builds and scope-tests an FPGA low-pass filter from one prompt

    In an Octopart video, one prompt sends Claude Code through a digital low-pass filter on a Digilent Cmod S7 FPGA board. It writes and simulates the filter, then programs the board over JTAG. Through MCP servers for an Analog Discovery 2 and a Rigol scope, it sweeps test tones at 1, 5 and 15 kHz against the 10 kHz cutoff.