Monday, August 2, 2021

python to control the stepmotor nema11

#finally it works! the wait time has to be finetuned to prevent the wobbling import RPi.GPIO as GPIO from RpiMotorLib import RpiMotorLib import time ################################ # RPi and Motor Pre-allocations ################################ # #define GPIO pins GpioPins=[21,22,23,24] # Declare a instance of class pass GPIO pins numbers and the motor type #mymotortest = RpiMotorLib.A4988Nema(direction, step, (21,21,21), "DRV8825") mymotortest = RpiMotorLib.BYJMotor("Mymotorone", "Nema") #mymotortest = RpiMotorLib.A4988Nema(direction, step, (21,21,21), "A4948") for i in range(5): time.sleep(1) mymotortest.motor_run(GpioPins, 0.0002, 1600, True, False, "full", .05)#pins, wait, steps, ccwise, verbose, steptype,inidelay time.sleep(1) mymotortest.motor_run(GpioPins, 0.0003, 1600, False, False, "full", .05)#pins, wait, steps, ccwise, verbose, steptype,inidelay GPIO.cleanup() # clear GPIO allocations after run

Monday, July 19, 2021

open image sequence with filter of more than one criteria

It took some effort, but I figure out the code should be: File name contains: (.*_F_.*tif) This means there is a "_F" in file name and the type of images is tif

Friday, July 2, 2021

3d mouse brain and skull model

Very nice 3d model: https://www.thingiverse.com/thing:3079327 This is how to make it smaller in file size so it can be imported to Tinkercad https://3dtomorrow.com/2019/07/17/how-to-reduce-file-size-in-meshmixer/

Wednesday, June 30, 2021

To convert 2-column vectors to 5 column vectors for comparison of grouped data

target=half_decay; grp=1:5; grouplength=ones(1,5); for i=1:5 grouplength(i)=length(find(target(:,2)==i)); end largest_groupnumber=max(grouplength); finalmatrix=NaN(largest_groupnumber,5); for ii=1:5 for iii=1:grouplength(ii) aa=target(find(target(:,2)==ii)); finalmatrix(iii,ii)=aa(iii); end end

Wednesday, February 17, 2021

Language tips: dire

There is a burning need to develope effective therapeutics toward... : Burning to "dire"