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Description
Index Motherboard REV03
The third revision of the Index Motherboard is here! Here's a bit about what it is:
- Based on the STM32F407VGT6 microcontroller.
- Support for six stepper motor drivers, including "dumb" motor drivers using just a step and direction pin, but also TMC2209 drivers and their extensive config options over UART. The board comes pre-configured to work with TMC2209 drivers. Each stepper driver has an accompanying limit switch port.
- Onboard USB hub that provides an extra three USB ports on the board, two of which are intended to be used for connecting to the up and down vision cameras.
- Acceptable input voltage from 12v-24v (24v recommended).
- Two ports for WS2812B based lights, intended to be used with the project's ring light design.
- Two servo ports for general usage and hacking, but also for future conveyor board clamp support.
- Hot-swap safe RS-485 port for communicating with feeders.
- Four mosfets meant for controlling two pumps and two valves.
- Three fully-featured auxiliary ports, including ADC and PWM GPIOs, SPI, I2C, and the board's 3v3 rail.
- A QWICC connector conforming to Sparkfun's standards.
- Two vacuum sensors meant for determining a successful pick based on the vacuum pressure in the line.
- Easy reprogramming over USB using DFU mode and two onboard buttons.
- Goblin silkscreen art on the back!
All source material for the board can be found on the Index PnP project's GitHub page:
https://github.com/index-machines/index
Circuit diagrams and Schematics
Schematic
Schematic.pdf
Sep 10,2021
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Index Motherboard REV03
The third revision of the Index Motherboard is here! Designed to control a desktop pick and place machine.
3615
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Published: Sep 10,2021
Download Gerber file 239
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