Do you have any solution to acces the Pyboard REPL with external power supply connected + usb connexion ?
Could it be cuased by electromagnetic interactions with other wires ?
Because I check just the line as you said nad I never get errors ...
Here is my code :
Code: Select all
from step import Stepper
import utime
from bmp280 import *
from sfm3000 import SFM3000
import machine
from ssd1306_setup import WIDTH, HEIGHT, setup
from writer import Writer, CWriter
from nanogui import Label, Meter, refresh
import uasyncio
# Fonts
import courier20 as fixed
import font6 as small
import arial10
ssd = setup(False, True) # Create a display instance
import sys
class TableAccordage():
def __init__(self):
#Acuators
self.IN1 = machine.Pin('X1', machine.Pin.OUT)
self.IN2 = machine.Pin('X2', machine.Pin.OUT)
self.IN3 = machine.Pin('X3', machine.Pin.OUT)
self.IN4 = machine.Pin('X4', machine.Pin.OUT)
self.IN5 = machine.Pin('X5', machine.Pin.OUT)
self.IN6 = machine.Pin('X6', machine.Pin.OUT)
self.BLOW = machine.Pin('X4', machine.Pin.OUT) # limit switch
self.VANNE = machine.Pin('X19', machine.Pin.OUT) # limit switch
self.CLAMP = machine.Pin('X20', machine.Pin.OUT) # limit switch
self.BLOW.high()
self.PressPos = True
self.VANNE.high() #Vanne ouverte
self.SW1 = machine.Pin('X11', machine.Pin.IN) # limit switch
self.SW2 = machine.Pin('X12', machine.Pin.IN, pull=machine.Pin.PULL_DOWN) # limit switch
#print(self.SW2.value())
self.stepper = Stepper(self.IN1, self.IN2, self.IN3)
self.stepper.steps(-300,1800)
while self.SW1.value() :
self.stepper.steps(1,1800)
self.PressPos = 1
self.bus=machine.I2C(scl=machine.Pin('Y9'), sda=machine.Pin('Y10'))
#sensors
self.bmp = BMP280(self.bus)
#tca.switch_channel(1)
self.sfm3000 = SFM3000(self.bus)
self.p0 = self.bmp.pressure
uasyncio.run(self.main())
self.InitP0()
#print(self.sfm3000.Mes_flow())
async def screen(self):
Writer.set_textpos(ssd, 0, 0) # In case previous tests have altered it
wri = Writer(ssd, small, verbose=False)
wri.set_clip(False, False, False)
nfields = []
dy = small.height() + 6
y = 2
col = 50
width = wri.stringlen('990.99')
for txt in ('Press:', 'Y:', 'Z:'):
nfields.append(Label(wri, y, col, width, bdcolor=None)) # Draw border
y += dy
await uasyncio.sleep_ms(100)
while True :
Label(wri, 2, 2, ' Press ', True)
Label(wri, 22, 2, ' Flow ', True)
Label(wri, 42, 2, ' Temp ', True)
i=0
for field in nfields:
value = (self.bmp.pressure-self.p0,self.sfm3000.Mes_flow(),self.bmp.temperature)
#print(value[i]) # print sensors values
field.value('{:5.2f}'.format(value[i]))
i=i+1
refresh(ssd)
await uasyncio.sleep_ms(100)
async def InitP0(self):
self.VANNE.low()#Vanne fermée
self.BLOW.low()
await uasyncio.sleep_ms(2000)
self.p0= self.bmp.pressure
self.BLOW.high()
self.VANNE.high()#Vanne fermée
async def InvPress(self):
await uasyncio.sleep_ms(1000)
#print('Sw2',self.SW2.value())
while True:
#print(self.SW2.value())
if self.SW2.value():
if self.PressPos == 1:
self.stepper.steps(-1800,2600)
self.PressPos = not self.PressPos
else :
self.stepper.steps(+1800,2600)
self.PressPos = not self.PressPos
await uasyncio.sleep_ms(120)
def _handle_exception(self,loop, context):
print('Global handler')
sys.print_exception(context["exception"])
#loop.stop()
sys.exit() # Drastic - loop.stop() does not work when used this way
async def main(self):
#self.loop = uasyncio.get_event_loop()
#self.loop.set_exception_handler(self._handle_exception)
uasyncio.create_task(self.InvPress())
uasyncio.create_task(self.screen())
while True:
await uasyncio.sleep(1000)
