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Ports sensor_cs1237.c from Qidi_Q2_Mainline_Klipper and implements a matching cs1237.py host driver following the same LoadCellSensor tap interface as hx71x.py, making it a drop-in config swap alternative. CS1237 features: 10/40/640/1280 SPS, four PGA gains (1x/2x/64x/128x), 24-bit signed output, and a half-duplex DRDY/DOUT data line plus SCLK. Base adaptation for rpmsg-with-new-hx71x: register cs1237 in klippy/extras/load_cell/__init__.py, this lineage's sensor registry. Co-authored-by: MisterSheikh (sensor_cs1237.c source)
- Add cs1237 to the sensor_type list and link it to CS1237 Notes - Document pin naming and the HX711 configuration-swap example - Document MCU firmware opt-in and automatic DRDY pull-up behavior
Implement the CS1237 MCU wire protocol, including its 46-clock configuration transaction. The direction-change pulse between the command and configuration register payload is required; without it the transaction contains only 45 clocks. Cross-checked against the Qidi CS1237 driver.
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Summary
Add native CS1237 load-cell support for Elegoo Centauri Carbon 2 via Kalico tap interface.
[load_cell] sensor_type: cs1237support.Testing
test/test_cs1237.py+test/test_imports.py— 10 passedCONFIG_WANT_CS1237=yNotes
Hardware/logic-analyzer validation on CC2 is still needed.
Credit
The CS1237 MCU implementation was adapted from MisterSheikh/Qidi_Q2_Mainline_Klipper (
main), then integrated with Kalico's load-cell and probe interfaces based on the work by @jamesturton on the hx711 tap driver for Centauri Carbon 1.