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bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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Auto power feature #474

Closed pug1-xda closed 3 years ago

pug1-xda commented 3 years ago

hi all, i have upgraded to 1.4 turbo from ramps 1.4. Want to use the auto power feature of marlin. i used to use the +5vsb line to power the ramps main board and then ground the grean wire with the ps_on pin. How do i do this on the 1.4 turbo. Many thanks

pug1-xda commented 3 years ago

So, On SKR 1.4 turbo, PWRDET didnt work for me on marlin 2.0.7.2. Maybe down to power_loss feature? Ended up changing the pin to E1DET (P1_25). Works like a charm now. Also turns back off after alotted time, mine was 30 seconds.

Attach the +5vsb (purple wire from PSU) to the middle pin of the USB power selector pins. Remove the red jumper first.

Sorted.