GPIO irq callback problem

Questions and discussion about The WiPy 1.0 board and CC3200 boards.
Target audience: Users with a WiPy 1.0 or CC3200 board.
Posts: 1
Joined: Sat Feb 25, 2017 11:58 am

GPIO irq callback problem

Postby Luit » Sat Feb 25, 2017 12:05 pm

Hi, I have exactly the same problem as described in viewtopic.php?f=11&t=2583.

Here is my

import machine
import urequests
from machine import Pin

def pincb(pin):
url = "(my test url)"
params = { "test": "true" }
urequests.urlopen(url, "GET", params)

p_out = Pin('GP2', mode=Pin.OUT)
pin_int = Pin('GP1', mode=Pin.IN, pull=Pin.PULL_UP
pin_int.irq(trigger=Pin.IRQ_RISING, handler=pincb)

I know that the handler works perfectly, because I tested it with telnet and my website's access logs. But for some reason when I connect GP2 and GP1 the red light starts to blink rapidly for a couple of seconds. After that nothing happens when I connect the two pins until I restart the WiPy.

User avatar
Posts: 1639
Joined: Fri Jul 18, 2014 8:01 am

Re: GPIO irq callback problem

Postby pythoncoder » Sun Feb 26, 2017 8:43 am

Testing a function from the REPL doesn't prove it will work as an interrupt handler. I suggest you read

The way to proceed is to have the interrupt handler set a flag which is tested in a main loop which runs forever. When the flag is set the main loop calls your handler and clears it.
Peter Hinch

Return to “The WiPy and CC3200 boards”

Who is online

Users browsing this forum: No registered users and 2 guests