RUMBA32 V1.1 User Manual – Rev A Page 3
2TABLE OF CONTENTS
1 Introduction .................................................................................................................................... 2
1.1 Overview .................................................................................................................................2
1.2 Relevant Links ......................................................................................................................... 2
1.3 Disclaimer................................................................................................................................ 2
1.4 Document Changelog.............................................................................................................. 2
2 Table of Contents............................................................................................................................ 3
3 Specifications .................................................................................................................................. 4
4 Power ..............................................................................................................................................5
4.1 Power Input............................................................................................................................. 5
4.2 Power Rails..............................................................................................................................6
5 MOSFET Outputs............................................................................................................................. 7
5.1 Overview .................................................................................................................................7
5.2 Remapping Outputs ................................................................................................................ 8
6 Endstop Connectors........................................................................................................................9
7 Thermistor Connectors .................................................................................................................10
8 I2C Connectors..............................................................................................................................11
9 Servo Connector............................................................................................................................12
10 USB Interface ............................................................................................................................13
11 EXP1 and EXP2 – LCD Connectors .............................................................................................14
12 EXP3 – General Expansion Header............................................................................................15
12.1 Overview ...............................................................................................................................15
12.2 EXP3 Modules .......................................................................................................................15
12.2.1 RUMBA WiFi Adaptor.................................................................................................... 15
12.2.2 RUMBA MKS-TFT Adaptor............................................................................................. 15
13 Stepper Drivers ......................................................................................................................... 16
13.1 Overview ...............................................................................................................................16
13.2 Diagnostic Input (StallGuard)................................................................................................17
13.2.1 Conflict with Endstop Signal ......................................................................................... 17
13.3 Stepper Driver Jumper Examples..........................................................................................18
14 Configuration Jumpers..............................................................................................................21
14.1 STEPPER_DRIVER_LOGIC Jumper..........................................................................................21
14.2 ENDSTOP_VOLTAGE Jumper.................................................................................................21
15 Entering Bootloader Mode ....................................................................................................... 22
16 Pinout........................................................................................................................................ 23
17 Dimensions................................................................................................................................ 24
