bdring/Grbl_Esp32
A port of Grbl CNC Firmware for ESP32 observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2963
- days_rel: n/a
- days_push: 920
- n_releases_24m: 0
Adoption not part of the score
1964 stars · 586 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Grbl_ESP32 is a port of the Grbl CNC controller firmware to the ESP32 microcontroller, supporting up to 6 coordinated axes, 12 motors, WiFi/Bluetooth connectivity, and a built-in web-based CNC control app. It is now in maintenance mode, with all new development moved to its successor FluidNC.
Use cases
- control a CNC machine with an ESP32 board
- run gcode files from an SD card over WiFi
- drive stepper motors with auto-squaring dual motor axes
- use sensorless homing with Trinamic stepper drivers
- control a laser with PWM power compensation
- send gcode over Bluetooth serial from a phone
- upgrade firmware over the air on a CNC controller
When to choose
- you need Grbl-compatible CNC firmware on ESP32 hardware
- you want WiFi, Bluetooth, and web-based control built into the firmware
- you need more axes, motors, or step rate than 8-bit AVR Grbl supports
- you have existing Grbl_ESP32-compatible controller hardware
When to avoid
- you are starting a new project - use FluidNC instead, which receives all new features
- you need firmware for 8-bit AVR Arduino boards - use original Grbl
- you need non-CNC motion control like 3D printing - use Marlin or similar
Facets
application · maturity maintenance
embedded robotics http-server embedded-systems hardware iot embedded cnc grbl gcode stepper-motor firmware esp32 fluidnc-successor automation
1 source
- readme: https://github.com/bdring/Grbl_Esp32 · fetched 2026-08-28 · 18593941e59b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| bdring/Grbl_Esp32 | main | 32 |
For agents
markdown · JSON · MCP: product_card(name="bdring/Grbl_Esp32")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem