- Firmware available for all Ender Extender sizes with and without BL-Touch.
- Performance has been significantly improved with the LPC1768 series Cortex-M3 main control chip with 32-bit main frequency and 120 MHz ARM level
- Using dedicated M6130 power chip, support 12-24V power input;
- The SPI and UART work mode controlled by the TMC driver, which also has the DIAG pin, which eliminates the need for a complex wiring process and can be used by simply pulling the jumper cap off.
- Double Z-axis interface, which eliminates problems with the external drive expansion module.
- Does not include driver modules. (Sold seperately)
(Description copied from Amazon listing)
Consult BigTreeTech Github page for installation and wiring instructions.
No returns or exchanges on electronics components.
Driver modules
TMC 2209
https://enderextender.com/products/btt-skr-1-4-driver-module-tmc2209
A4988