kopia lustrzana https://github.com/zhcong/ULN2003-for-ESP32
87e71db29c
# spec: http://www.geeetech.com/wiki/index.php/Stepper_Motor_5V_4-Phase_5-Wire_%26_ULN2003_Driver_Board_for_Arduino#Interfacing_circuits # from spec- Speed Variation Ratio ：1/64, the ratio between input wheel to output wheel is 64 # from the spec (5.625'/64) angle for one HALF_STEP, and for one internal cycle you need 8 HALF_STEPs # so for 360' is: (360/(5.625'/64))/8=512(before any step) and multiply it by one cycle(8 HALF_STEPs or 4 FULL_STEPs) # this is added angle not absolute- call it addAngle() # the direction can calculate if the angle is negative, no need this input # and the name is angle, not r for radius |
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| img | ||
| README.MD | ||
| Stepper.py | ||
| boot.py | ||
| main.py | ||
README.MD
ULN2003 for ESP32
uln2003 for MicroPython has been in github, here's the link. But it's work for microbit, so I change a little to transplant for my NodeMCU's ESP-32s. Here's the example:
import Stepper
from machine import Pin
s1 = Stepper.create(Pin(16,Pin.OUT),Pin(17,Pin.OUT),Pin(5,Pin.OUT),Pin(18,Pin.OUT), delay=2)
s1.step(100)
s1.step(100,-1)
s1.angle(180)
s1.angle(360,-1)
function angle is angle, and the PIN map:
IN1 link PIN_16
IN2 link PIN_17
IN3 link PIN_5
IN4 link PIN_18
My uln2003 board like this, and stepper runing:
