Ryan Malloy a425b4c324 Add OLED display support, standardize Serial0 for UART output ...

- Add SSD1306 128x64 OLED display with attenuation bar, dB readout,
  step counter, sweep indicator, and WiFi RSSI
- Switch all debug output to Serial0 (UART0 via CH343) for consistent
  serial comms when USB CDC is not used
- Remove unused USB.h includes from all source files
- Add development notes to CLAUDE.md (no stty, serial config docs)

2026-02-08 14:10:44 -07:00

datasheet

Add SVG vector extractions from datasheet

2026-02-02 13:42:21 -07:00

docs

Initial commit: HMC472A attenuator module reference materials

2026-02-02 13:41:13 -07:00

firmware

Add OLED display support, standardize Serial0 for UART output

2026-02-08 14:10:44 -07:00

hardware

Wiring diagram: realistic S2 Mini based on WEMOS pinout image

2026-02-03 11:23:14 -07:00

marketing

Initial commit: HMC472A attenuator module reference materials

2026-02-02 13:41:13 -07:00

CLAUDE.md

Add OLED display support, standardize Serial0 for UART output

2026-02-08 14:10:44 -07:00

Description

HMC472A digital RF attenuator controller — ESP32-S3 firmware with USB CDC serial and WiFi REST API

4.8 MiB

Languages

C++ 59.5%

CSS 11.6%

JavaScript 11.4%

HTML 9.6%

C 6.5%

Other 1.4%