micropython_ir: Bad Block with 2 Pi Pico W's on v1.22.1 uP

Howdy.

I have 2 raspberry pi pico W’s running:

MicroPython v1.22.1 on 2024-01-05; Raspberry Pi Pico W with RP2040 sitting a few inches away from each other.

• The first is using a TSOP4838 4838 IR Receiver
• I have tried the same test(s) with an EK8460 Receiver

Am able to run from ir_rx.test import test; test() on the the first and point a IR remote to it and get data back if I press “OK” or any button whatsoever:

i.e Data 0x40 Addr 0x0000 Ctrl 0x00

Life is very joyful…

Next, I take the second pi pico and an “Adafruit High Power Infrared LED Emitter - STEMMA JST PH 2mm” and perform:

from machine import Pin
from ir_tx.nec import NEC
nec = NEC(Pin(15, Pin.OUT, value = 0))
nec.transmit(0,1) 

(I’ve tried powering with 3.3 and 5.0 Volts - pin 36 and 40 respectively.) I have the proper stemma connectors and have DC power to the V+ power in, ground for ground, and then a 3-5V logic level signal on the input pin as per Adafruit.

I see the red led light up on the adafruit emitter and instantly I can see the the first/pico receiver reports back “Error: bad block”.

If I use the acquire method, I get some data back for nec.transmit(0,1):

>>> from ir_rx.acquire import test
>>> test()
Waiting for IR data...
000  8949
001  7174
002  1837
003   550
004   578
005   527
006   607
007   553
008   579
009   552
010   578
011   553
012   579
013  1680
014   582
015  1684
016   581
017  1683
018   552
019  1711
020   550
021  1690
022   574
023  1685
024   579
025  1708
026  7657
027   526
028   922
029   394
030  1263
031   151
032   297
033   500
034   604
035   528
036   605
037   528
038   604
039   524
040   606
041   526
042   607
043  1683
044   581
045  1683
046   553
047  1707
048   555
049  1685
050   578
051  1684
052   552
053  1709
054   553
055  1712
056   549

Unknown protocol start 8949 7174 Burst length 57 duration 70952

[8949, 7174, 1837, 550, 578, 527, 607, 553, 579, 552, 578, 553, 579, 1680, 582, 1684, 581, 1683, 552, 1711, 550, 1690, 574, 1685, 579, 1708, 7657, 526, 922, 394, 1263, 151, 297, 500, 604, 528, 605, 528, 604, 524, 606, 526, 607, 1683, 581, 1683, 553, 1707, 555, 1685, 578, 1684, 552, 1709, 553, 1712, 549]

For fun, I’ve tried sending all sorts of values. (have tried researching the NEC protocol and read some issues in this repo but I figured the second pico should report something other than 'bad block? - I claim no expertise here…)

My goal is to just send ‘any’ data really via IR from the first pico to the other. Then once received I can do things like turn an led on/off or call up the President (j/k) or what have you.

Apologies for my lack of EE training, I hope it is clear.

Thanks for any guidance