>VALUE>VALUE>VALUE<b>SUPPLY SYMBOL</b><b>SUPPLY SYMBOL</b><b>SUPPLY SYMBOL</b>parkfun.com>NAME>VALUEThis footprint was designed to help hold the alignment of a through-hole component (i.e. 6-pin header) while soldering it into place.
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes. Because they are alternating, it causes a "brace"
to hold the component in place. 0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice. Also,
if you push a header all the way into place, it is covered up entirely on the bottom side. This idea of altering the position of holes to aid alignment
will be further integrated into the Sparkfun Library for other footprints. It can help hold any component with 3 or more connection pins.>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUEThis footprint was designed to help hold the alignment of a through-hole component (i.e. 6-pin header) while soldering it into place.
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes. Because they are alternating, it causes a "brace"
to hold the component in place. 0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice. Also,
if you push a header all the way into place, it is covered up entirely on the bottom side. This idea of altering the position of holes to aid alignment
will be further integrated into the Sparkfun Library for other footprints. It can help hold any component with 3 or more connection pins.>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE2mm SMD side-entry connector. tDocu layer indicates the actual physical plastic housing. +/- indicate SparkFun standard batteries and wiring.>Name>Value+->Name>Value>NAME>VALUE>Name>Value+->NAME>VALUE>Name>Value+->Name>Value+->NAME>VALUE>NAME>VALUE>Name>Value+-SS>NAME>VALUE>NAME>VALUE>VALUESFE>VALUE>NAME>VALUE>NAME<b>SUPPLY SYMBOL</b><b>Spark Fun Electronics PCB Logo</b>
This is the standard Spark Fun Electronics PCB logo.<b>Header 2</b>
Standard 2-pin 0.1" header. Use with straight break away headers (SKU : PRT-00116), right angle break away headers (PRT-00553), swiss pins (PRT-00743), machine pins (PRT-00117), and female headers (PRT-00115). Molex polarized connector foot print use with SKU : PRT-08233 with associated crimp pins and housings.<b>Header 4</b>
Standard 4-pin 0.1" header. Use with straight break away headers (SKU : PRT-00116), right angle break away headers (PRT-00553), swiss pins (PRT-00743), machine pins (PRT-00117), and female headers (PRT-00115). Molex polarized connector foot print use with SKU : PRT-08231 with associated crimp pins and housings. 1MM SMD Version SKU: PRT-10208>VALUE<b>SUPPLY SYMBOL</b>Small solder jumper with big paste layer so it will short during reflow.>NAME>VALUESolder jumper, small, shorted with trace. No paste layer. Trace is cuttable.>NAME>VALUE>NAME>VALUESmall solder jumper with no paste layer so it will open after reflow.>NAME>VALUE<B>LED</B><p>
5 mm, round>NAME>VALUE<B>LED</B><p>
3 mm, round>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>NAME>VALUE<b>Solder Jumper</b>
Standard SMD solder jumper. Used to automate production. Two varients : Normally Open and Normally Closed are the same, but have different paste layers. NC will have a large amount of paste and should jumper during reflow.<b>LEDs</b>
Standard schematic elements and footprints for 5mm, 3mm, 1206, and 0603 sized LEDs. 5mm - Spark Fun Electronics SKU : COM-00529 (and others)<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME<b>TEST PAD</b>>NAME>VALUE>TP_SIGNAL_NAME>NAME>TP_SIGNAL_NAME<b>Test pad</b><b>Stand Off</b><p>
This is the mechanical footprint for a #4 phillips button head screw. Use the keepout ring to avoid running the screw head into surrounding components. SKU : PRT-00447<b>Stand Off</b><p>
This is the mechanical footprint for a #4 phillips button head screw. Use the keepout ring to avoid running the screw head into surrounding components. SKU : PRT-00447<B>DIODE</B><p>
diameter 2.54 mm, horizontal, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 2 mm, horizontal, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 4 mm, horizontal, grid 10 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, horizontal, grid 12.7 mm>NAME>VALUE<B>DIODE</B><p>
diameter 4 mm, vertical, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 5.6 mm, horizontal, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
diameter 2.54 mm, horizontal, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3 mm, horizontal, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 5 mm, horizontal, grid 12.7 mm>NAME>VALUE<B>DIODE</B><p>
diameter 1.8 mm, horizontal, grid 7.62 mm>NAME>VALUE<B>DIODE</B><p>
2-lead plastic, vertical>NAME>VALUE<B>DIODE</B>>NAME>VALUE<B>DIODE</B><p>
2-lead metall, vertical>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, vertical, grid 5.08 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, horizontal, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
diameter 4 mm, vertical, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 4.8 mm, vertical, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, vertical, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, vertical, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, vertical, grid 17.78 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, vertical, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.5 mm, vertical, grid 20.32 mm>NAME>VALUE<B>DIODE</B><p>
diameter 5 mm, horizontal, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
diameter 2.3 mm, vertical, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3.3 mm, vertical, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
diameter 3 mm, horizontal, grid 10.16 mm>NAME>VALUE<B>DIODE</B><p>
2-lead molded, vertical>NAME>VALUE<B>DIODE</B><p>
2-lead molded, horizontal>NAME>VALUEA17,5mm<B>DIODE</B><p>
2-lead molded, vertical>NAME>VALUE<B>DIODE</B><p>
diameter 7.62 mm, horizontal, grid 12.7 mm>NAME>VALUE<B>DIODE</B><p>
diameter 4.8 mm, vertical, grid 12.7 mm>NAME>VALUE<B>DIODE</B>>NAME>VALUE<B>DIODE</B><p>
diameter 9 mm, horizontal, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
diameter 5.2 mm, horizontal, grid 15.24 mm>NAME>VALUE<B>DIODE</B><p>
2-lead molded, horizontal>NAME>VALUEA17,5mm<B>DIODE</B>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>SOD106 Reflow soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>SOD106 Wave soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>SOD106A Reflow soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>SOD110 Wave soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>SOD110 Reflow soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>Diode</b>>NAME>VALUE<b>SOD323 Reflow soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>SOD323 Wave soldering</b> Philips SC01_Mounting_1996.pdf>NAME>VALUE<b>GF1</b><p>
General Semiconductor>NAME>VALUE<b>Mini Melf Diode</b>>NAME>VALUE<b>DIODE</b><p>
Package DO-213AB = http://www.diotec.com/pdf/sm4001.pdf>NAME>VALUE<b>Micro Melf Diode Reflow soldering</b> VISHAY mcl4148.pdf>NAME>VALUE<b>Micro Melf Diode Wave soldering</b> VISHAY mcl4148.pdf>NAME>VALUE<b>Diode Package</b> Reflow soldering<p>
INFINEON, www.infineon.com/cmc_upload/0/000/010/257/eh_db_5b.pdf>NAME>VALUE<b>Diode Package</b> Reflow soldering<p>
INFINEON, www.infineon.com/cmc_upload/0/000/010/257/eh_db_5b.pdf>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>DIODE</b>>NAME>VALUE<b>SURFACE MOUNT GENERAL RECTIFIER</b> JEDEC DO-214AC molded platic body<p>
Method 2026<br>
Source: http://www.kingtronics.com/SMD_M7/M7_SMD_4007.pdf>NAME>VALUE<b>DO41</b> 7.6mm x 2mm<p>
Source: http://www.diodes.com/datasheets/ds23001.pdf>NAME>VALUE>NAME>VALUE<b>DIODE</b><b>SOT-223</b>>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUEThis footprint was designed to help hold the alignment of a through-hole component (i.e. 6-pin header) while soldering it into place.
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes. Because they are alternating, it causes a "brace"
to hold the component in place. 0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice. Also,
if you push a header all the way into place, it is covered up entirely on the bottom side. This idea of altering the position of holes to aid alignment
will be further integrated into the Sparkfun Library for other footprints. It can help hold any component with 3 or more connection pins.>NAME>VALUE>NAME>VALUE>NAME>VALUE>Name>Value+-SS>NAME>VALUE>NAME>VALUE>NAME>VALUE2mm SMD side-entry connector. tDocu layer indicates the actual physical plastic housing. +/- indicate SparkFun standard batteries and wiring.>Name>Value+->Name>Value>NAME>VALUE>NAME>VALUEThis footprint was designed to help hold the alignment of a through-hole component (i.e. 6-pin header) while soldering it into place.
You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line).
This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes. Because they are alternating, it causes a "brace"
to hold the component in place. 0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers.
Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice. Also,
if you push a header all the way into place, it is covered up entirely on the bottom side. This idea of altering the position of holes to aid alignment
will be further integrated into the Sparkfun Library for other footprints. It can help hold any component with 3 or more connection pins.>NAME>VALUE>NAME>VALUE>NAME>VALUE>Name>Value+->NAME>VALUEADJINOUT>VALUE>NAME>VALUE>NAME<b>Voltage Regulator</b>
Standard LM317 adjustable voltage regulator. AOI (Adjust Output Input). Google LM317 Calculator' for easy to use app to get the two resistor values needed. 240/720 for 5V output. 240/390 for 3.3V output. Spark Fun Electronics SKU : COM-00527'<b>Header 4</b>
Standard 4-pin 0.1" header. Use with straight break away headers (SKU : PRT-00116), right angle break away headers (PRT-00553), swiss pins (PRT-00743), machine pins (PRT-00117), and female headers (PRT-00115). Molex polarized connector foot print use with SKU : PRT-08231 with associated crimp pins and housings.<b>Header 2</b>
Standard 2-pin 0.1" header. Use with straight break away headers (SKU : PRT-00116), right angle break away headers (PRT-00553), swiss pins (PRT-00743), machine pins (PRT-00117), and female headers (PRT-00115). Molex polarized connector foot print use with SKU : PRT-08233 with associated crimp pins and housings.OSHWLOGO<h3>SparkFun Electronics' preferred foot prints</h3>
In this library you'll find non-functional items- supply symbols, logos, notations, frame blocks, etc.<br><br>
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
<br><br>
<b>Licensing:</b> CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.Released under the Creative Commons Attribution Share-Alike 3.0 Licensehttp://creativecommons.org/licenses/by-sa/3.0Designed by:Date:>LAST_DATE_TIMESheet:>SHEETREV:TITLE:>DRAWING_NAMEReleased under the Creative CommonsAttribution Share-Alike 3.0 Licensehttp://creativecommons.org/licenses/by-sa/3.0Design by:<b>Schematic Frame</b><p>
Standard 8.5x11 US Letter frame<b>Fiducial Alignment Points</b>
Various fiducial points for machine vision alignment.<h3>SparkFun Electronics' preferred foot prints</h3>
In this library you'll find anything that moves- switches, relays, buttons, potentiometers. Also, anything that goes on a board but isn't electrical in nature- screws, standoffs, etc.<br><br>
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
<br><br>
<b>Licensing:</b> Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/
<br><br>
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.>NAME>VALUE>Value>Name<h3>TSR-3386U Trimpot</h3>
Trimpot with a knob<br>
For COM-09806 in the SparkFun catalog<br>>Name>Value>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUEVarious small potentiometers for "set-and-forget" applications<h3>SparkFun Electronics' preferred foot prints</h3>
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.<br><br>
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
<br><br>
<b>Licensing:</b> Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/
<br><br>
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.>NAME>VALUE<b>RESISTOR</b><p>
chip>NAME>VALUE>NAME>VALUERES-00818RES-07864RES-07849RES-07856RES-09231RES-10646RES-08354<h3>SparkFun Electronics' preferred foot prints</h3>
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.<br><br>
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
<br><br>
<b>Licensing:</b> Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/
<br><br>
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUECAP-08390CAP-09885CAP-10547CAP-00868<h3>SparkFun Electronics' preferred foot prints</h3>
In this library you'll find drivers, regulators, and amplifiers.<br><br>
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
<br><br>
<b>Licensing:</b> Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/
<br><br>
You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.>NAME>VALUE>NAME>VALUE>NAME>VALUE>NAME>VALUE>VALUE>NAMEDMOS Microstepping Driver with Translator Brian SchmalzProduced by SparkFun ElectronicsVoltage regulator can supply 100mAMust use LM317For 35V V+ inputAPWR Normally ShortedCut to use your ownVcc source from JP14 VCCPower Input JP1, JP78V to 35V DConly 15mA of which the BED needs.The rest you can use, if you want3/5V Normally Open -> Vcc=5.0V3/5V Closed -> Vcc = 3.3Vto GND or Vcc to overrideSLEEP = Vcc (awake)MS1 = Vcc (1/16 microstep)MS2 = Vcc (1/16 microstep)ENABLE = GND (enabled)RESET = Vcc (not reset)MS3 = Vcc (1/16 microstep)Short JP10, or JP6 pins DEFAULT OPTIONSBigEasyDriver v1.6aDIR is level sensitiveA rising edge on STEPBoth take 0V to VccCoil A of motor acrossCoil B of motor acrossCOILA+ and COILA-COILB+ and COILB-causes a stepAn easy to use bipolar stepper motor driverUse 4 wire, 6 wire or 8 wire steper motorsFrom 0mA/phase to over 2A/phaseDefaults to 5V for Vcc (logic supply), settable to 3.3VSupply 8V to 35V DC power input on JP1 or JP7Do not connect or disconnect motorwhile BigEasyDriver is poweredCurrent adjust pot: adjusts max coil
current. R13 set such that:
At VCC = 3.3V, full clockwise = 2.08A coil current
At VCC = 5V, 64% clockwise = 2.0A coil current
Note driver can only output 2A coil current,
and is dependent on input voltage, motor,
and heat sinking/fan to reach this.www.schmalzhaus.com/BigEasyDriverBoth C14 and C1 mustBe rated for >=50VChange List:v1.0 BPS Origonal versionD.N.ID.N.I.100" Headers2.5mm Screw Terminalsv1.1 BPS Added pull-ups, re-routedBi-polar Stepper Motor OutputsD.N.Iv1.2 5/2/11 BPS Silk screen corrections, sense resistors now .11 ohmsfrom the VCC pin.SparkFun design rules applied - minor layout tweaks, R13 now 2.49KNOTE: VCC is normally an OUTPUT. You do not need to supply power to the Big Easy Driver through VCC.The only power needed is through M+ (motor power).v1.3 SF 1/10/12-updated footprint for driver IC (1:1)-ran all traces directly away from IC-moved vias and retraced as necessary on VCC and TOP layersv16aRevised by Patrick Albertsv1.4 SF 4/17/2013 Fixed current adjustment pot silk so directions are correctv1.5 SF 6/27/2013v1.6 BPS 3/28/2014Changed license from CC by 3.0 to CC by-sa 3.0Updated to standard 0603 foorprints, some rerouting, schematic nets changedRemoved large hole in solder mask on bottomChanged R13 to 8.2K to improve range of current adjust potYou only need to connect M+,
GND, STEP, DIR and the motor
outputs. All other I/O is set to
default to 1/16th microstep
mode, and connections are
not required for basic
operation.Added current limiting resistors to STEP and DIR
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