TypeError: can't convert str to int

[Flaming-crossbow]

In advance i must warn you, i am a complete micropython beginner, and i would also like to thank you for making these packages.

Anyway I followed the instructions and gave the test a try:

from ir_rx.acquire import test
test()

And got a reading:

Waiting for IR data... 000 8986 001 4484 002 575 003 585 004 579 005 582 006 578 007 583 008 578 009 583 010 641 011 517 012 580 013 583 014 579 015 583 016 577 017 583 018 578 019 1658 020 581 021 1661 022 579 023 1656 024 582 025 1660 026 578 027 1659 028 579 029 1662 030 577 031 1662 032 574 033 1665 034 576 035 585 036 577 037 1658 038 580 039 1663 040 576 041 583 042 576 043 1660 044 581 045 582 046 579 047 583 048 577 049 584 050 576 051 1659 052 581 053 582 054 577 055 585 056 585 057 1650 058 582 059 583 060 579 061 1661 062 629 063 1606 064 582 065 1662 066 579

NEC

After that i gave the pyboard example a try but i am using an ESP32 minikit so i removed the PYB and LED lines:

import time
from machine import Pin
#REMOVED from pyb import LED
from ir_rx.nec import NEC_8  # NEC remote, 8 bit addresses

#REMOVED red = LED(1)

def callback(data, addr, ctrl):
    if data < 0:  # NEC protocol sends repeat codes.
        print('Repeat code.')
    else:
        print('Data {:02x} Addr {:04x}'.format(data, addr))

ir = NEC_8(Pin('X3', Pin.IN), callback)
while True:
    time.sleep_ms(500)
    red.toggle()

And i got the following error:
Traceback (most recent call last):
  File "<stdin>", line 14, in <module>
TypeError: can't convert str to int

This is line 14:

ir = NEC_8(Pin('X3', Pin.IN), callback)

Any idea on what is going wrong?

[peterhinch]

It's hard to read your code as the formatting is lost. Please create a code block with a line starting ```python.

After the last line add an end line consisting of three backtick characters ```.

If you click the preview tab you should see you code properly formatted, like this:

def foo():
    print('Hello')

The only obvious bug I can see is the line

red.toggle()

but maybe I'll spot something else when I can see the formatting.

[Flaming-crossbow]

Edit I got it! The example mentions

ir = NEC_16(Pin('X3', Pin.IN), callback)

I assumed the code selects the pin depending on the found hardware. But it doesn't. I am using an ESP32 so it shouldnt be 'X3' but 16 (pin 16 in my case.)

It works.

Also, are there more examples? something where an ir remote buttons are mapped? (where the output is the pressed remote button. arrow up, down, OK, 1, 2, 3, etc) edit

Thanks for the tip!

I am using this code now, added some for blinking the onboard led when a button is pressed. (ESP32 minikit/MH-ET LIVE)

#IR receiver pin 16
#save ir_rx directory to ESP32, change pin in acquire.py file to correct pin 16
#https://github.com/peterhinch/micropython_ir

import time
from machine import Pin
from ir_rx.nec import NEC_16  # NEC remote, 8 bit addresses

led=Pin(2,Pin.OUT)

def callback(data, addr, ctrl):
    if data < 0:  # NEC protocol sends repeat codes.
        print('Repeat code.')
    else:
        print('Data {:02x} Addr {:04x}'.format(data, addr))
        led.value(1)

ir = NEC_16(Pin(16, Pin.IN), callback)
while True:
    time.sleep_ms(500)
    led.value(0)

[peterhinch]

In all MicroPython code you have to specify pins, and the designation for them depends on the device in use.

The way to map buttons is first to use the code you have to determine the output of the buttons you intend to use. Write this output down, checking it is consistent if you press the button more than once. Then rewrite your callback to detect those values and do whatever you plan to do.

[Flaming-crossbow]

Thanks again!