OSH Park
Profile for msds
Shared projects
AMS Encoder Module
by
msds.
2
layer board of
1.04x1.30
inches
(26.34x33.02
mm).
Shared on
August 12th, 2014 21:05.
DO NOT USE! DEFECTIVE! BAD! WRONG! See revision two for a fixed version.
Big Purple Driver, Rev. 3
by
msds.
2
layer board of
1.80x1.60
inches
(45.72x40.64
mm).
Shared on
July 21st, 2014 20:42.
This board is a meta-breakout board for Pololu’s DRV8825 stepper driver module, designed to hold a custom-machined heatsink, capacitor, screw-terminal connectors, and an indicator LED for fault conditions.
C1 is a Panasonic H13 100µF 63V electrolytic capacitor (EEE-TK1J101AQ).
D1 is an 1206 red LED - OSRAM’s LH N974-KN-1
Q2 is a P-channel MOSFET - NXP BSS84,215. Q1 and R1 are non-existent.
R2 is an appropriately-sized 0805 current-limiting resistor for your choice of LED.
JP3 and JP4 are 2 and 4 position 3.5mm screw terminals. Phoenix 5452604 and TE 284391-2 work.
Big Red Driver - V2
by
msds.
2
layer board of
2.04x1.60
inches
(51.77x40.64
mm).
Shared on
January 28th, 2014 07:02.
This board is a meta-breakout board for Pololu’s DRV8825 stepper driver module, designed to hold a custom-machined heatsink, capacitor, screw-terminal connectors, and an indicator LED for fault conditions.
- C1 is a Panasonic H13 100µF 63V electrolytic capacitor (EEE-TK1J101AQ).
- D1 is an 1206 red LED - OSRAM’s LH N974-KN-1
- Q2 is a P-channel MOSFET - NXP BSS84,215. Q1 and R1 are non-existent.
- R2 is an appropriately-sized 0805 current-limiting resistor for your choice of LED.
- JP3 and JP4 are TE Connectivity 284391-4 and 284391-2, respectively.
Dual INA282 Current Feedback Module
by
msds.
2
layer board of
1.56x0.98
inches
(39.67x24.77
mm).
Shared on
January 7th, 2014 05:19.
This board contains two current shunts and their accompanying amplifiers - part of an attempt to investigate building flexible and intelligent stepper-motor drivers. U1 and U2 are TI INA282 (or equivalent, depending on desired gain) current shunt monitors, C1 and C2 are 0603 0.1uF 16V X7R, and the two four-terminal resistors are Vishay’s WSL3637 series. Operates on a 3.3V supply, with a max common-mode voltage of 80V. Untested, order at your own risk.