120 ohm Termination Resistor

The header for the termination resistor is circled in purple. You need to jumper both the header pairs

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DFU Mode

  1. Add a jumper as shown in the image below to enable DFU mode

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  1. Connect your device to your Pi via USB
  2. The device should now be in DFU mode. Verify this via the lsusb command, which should look something like this: 
     Bus 001 Device 005: ID 0483:df11 STMicroelectronics STM Device in DFU Mode

Katapult Config

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Klipper Config

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Sample Configuration

A sample config file can be found at https://mellow-3d.github.io/fly-sht36_klipper_config.html