From 1b451ad809e7ead3a0124daca57a809c43f8ea09 Mon Sep 17 00:00:00 2001 From: dogma Date: Mon, 27 Nov 2023 19:51:36 -0600 Subject: [PATCH] Clean up files --- boot.py | 12 ++- motorcontroller.ino | 221 -------------------------------------------- motorstepper.cpp | 50 ---------- stepper.py | 1 - 4 files changed, 10 insertions(+), 274 deletions(-) delete mode 100644 motorcontroller.ino delete mode 100644 motorstepper.cpp delete mode 100644 stepper.py diff --git a/boot.py b/boot.py index 728528a..12e59ab 100644 --- a/boot.py +++ b/boot.py @@ -1,2 +1,10 @@ -# boot.py -- run on boot-up - \ No newline at end of file +# This file is executed on every boot (including wake-boot from deepsleep) +#import esp +#esp.osdebug(None) +import os, machine +#os.dupterm(None, 1) # disable REPL on UART(0) +import gc +import webrepl + +webrepl.start() +gc.collect() diff --git a/motorcontroller.ino b/motorcontroller.ino deleted file mode 100644 index 250be82..0000000 --- a/motorcontroller.ino +++ /dev/null @@ -1,221 +0,0 @@ - -/* - * Skytracker by Nick Touran for ESP8266 and Stepper Motors - * - * partofthething.com - * - * This accelerates the motor to correct the tangent error. It can rewind too! - * - * Motors are 28BYJ-48 5V + ULN2003 Driver Board from Amazon - * Hook up power and ground and then hook inputs 1-4 up to GPIO pins. - * - * See Also: http://www.raspberrypi-spy.co.uk/2012/07/stepper-motor-control-in-python/ - * This motor has a 1:64 gear reduction ratio and a stride angle of 5.625 deg (1/64th of a circle). - * - * So it takes 64*64 = 4096 single steps for one full rotation, or 2048 double-steps. - * with 3 ms timing, double-stepping can do a full rotation in 2048*0.003 = 6.144 seconds - * so that's a whopping 1/6.144 * 60 = 9.75 RPM. But it has way more torque than I expected. - * - * Can get 2ms timing going with double stepping on ESP8266. Pretty fast! - * Should power it off of external 5V. - * - * Shaft diameter is 5mm with a 3mm inner key thing. Mounting holes are 35mm apart. - * - */ - - -#define NUM_PINS 4 -#define NUM_STEPS 8 -#define RADS_PER_SEC 7.292115e-05 -#define LENGTH_CM 28.884 // fill in with precise measured value -// For theta zero, I used relative measurement between two boards w/ level. -// Got 0.72 degrees, which is 0.012566 radians -#define THETA0 0.012566 // fill in with angle at fully closed position (radians) -#define ROTATIONS_PER_CM 7.8740157 // 1/4-20 thread -#define DOUBLESTEPS_PER_ROTATION 2048.0 -#define CYCLES_PER_SECOND 80000000 - -//modes -#define NORMAL 0 -#define REWINDING 1 -#define STOPPED 2 - - -int allPins[NUM_PINS] = {D1, D2, D3, D4}; -int MODE_PIN = D7; - -// from manufacturers datasheet -int STEPPER_SEQUENCE[NUM_STEPS][NUM_PINS] = {{1,0,0,1}, - {1,0,0,0}, - {1,1,0,0}, - {0,1,0,0}, - {0,1,1,0}, - {0,0,1,0}, - {0,0,1,1}, - {0,0,0,1}}; - -int step_delta; -int step_num = 0; -double total_seconds = 0.0; -long totalsteps = 0; -double step_interval_s=0.001; -int *current_step; -volatile unsigned long next; // next time to trigger callback -volatile unsigned long now; // volatile keyword required when things change in callbacks -volatile unsigned long last_toggle; // for debounce -volatile short current_mode=NORMAL; -bool autostop=true; // hack for allowing manual rewind at boot - -float ypt(float ts) { - // bolt insertion rate in cm/s: y'(t) - // Note, if you run this for ~359 minutes, it goes to infinity!! - return LENGTH_CM * RADS_PER_SEC/pow(cos(THETA0 + RADS_PER_SEC * ts),2); -} - -void inline step_motor(void) { - /* This is the callback function that gets called when the timer - * expires. It moves the motor, updates lists, recomputes - * the step interval based on the current tangent error, - * and sets a new timer. - */ - switch(current_mode) { - case NORMAL: - step_interval_s = 1.0/(ROTATIONS_PER_CM * ypt(total_seconds)* 2 * DOUBLESTEPS_PER_ROTATION); - step_delta = 1; // single steps while filming for smoothest operation and highest torque - step_num %= NUM_STEPS; - break; - case REWINDING: - // fast rewind - step_interval_s = 0.0025; // can often get 2ms but gets stuck sometimes. - step_delta = -2; // double steps going backwards for speed. - if (step_num<0) { - step_num+=NUM_STEPS; // modulus works here in Python it goes negative in C. - } - break; - case STOPPED: - step_interval_s = 0.2; // wait a bit to conserve power. - break; - } - - if (current_mode!=STOPPED) { - total_seconds += step_interval_s; // required for tangent error - current_step = STEPPER_SEQUENCE[step_num]; - do_step(current_step); - step_num += step_delta; // double-steppin' - totalsteps += step_delta; - } - - // Serial.println(totalsteps); - // Before setting the next timer, subtract out however many - // clock cycles were burned doing all the work above. - now = ESP.getCycleCount(); - next = now + step_interval_s * CYCLES_PER_SECOND - (now-next); // will auto-rollover. - timer0_write(next); // see you next time! -} - -void do_step(int *current_step) { - /* apply a single step of the stepper motor on its pins. */ - for (int i=0;i