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Motor Driver Board Rev 1 Update History (Updated August 20, 2019)

1.07 (08/20/19) Separated the shaker motor and wire harness connection, changed wire harnesses to Cat5 cables and custom adapters
1.06 (07/23/19) Initial Public Release
1.05b (07/05/19) Release Candidate, adding green LED, adding motor test switch
1.05a (06/26/19) Second prototype for beta testing, changed size to 53mm x 68mm to match Arduino UNO, reduced to one optoisolator, reduced to one fuse on voltage line only, added Vcc and Gnd test points
1.04 (06/19/19) Added 8 optoisolators and diodes, added fiducials
1.03 (06/12/19) Added 8 trigger sources, added 8 pos DIP switch array, added 5.5mm x 2.1mm barrel power connector
1.02 (05/31/19) First prototype for alpha testing, reduced size to 60mm x 60mm, converted most components to SMD, compressed to one connector, added voltage and drive line fuses
1.01 (05/21/19) Initial release - 125mm x 150mm board all TH components, two connectors one for inputs from machine one for outputs to motor, single trigger source
1.00 (02/14/19) Pre-Alpha phase / Board Engineering Completed
(01/09/19) Project Conception / Board Engineering Started

Motor Driver Computer Program Rev 1 Update History (Updated August 15, 2019)

1.07 (08/15/19) Updated PWM frequency for better tuning, updated duty cycle ramp up/down time for better feel
1.06 (07/23/19) Initial Public Release

1.05 (06/29/19) Release Candidate - Added provisions for a green LED, set to blink for the 5 second boot up mode then remain steady

1.04 (06/27/19) Beta phase - Set trimmer pot range to 25%-100% duty cycle
1.03 (06/26/19) Removed 5 PWM pulse start up test, added 5 second boot up mode, PWM time reduced by 50%, set switch trigger of motor to 30ms pulse
1.02 (06/24/19) Alpha phase - Reduced to 5 PWM pulses at start, set trimmer pot range to 50%-100% duty cycle, added switch trigger of motor with 100ms pulse
1.01 (06/24/19) Pre-Alpha phase - Test PCB and motor by sending 10 PWM pulses of 50% duty cycle

Motor Driver Board Rev 2 Future Plans (Updated July 19, 2019)

(06/30/19) Project Conception / Board Engineering Started