Recent posts

#21

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 14, 2025, 02:17:16 PM

Hi Folks,

Follow up post again, I now have it working, the protocol is correct, its not Whynter at all, its NEC!

But I'm now on to another problem, I cant get the range I want. Ideally, I'm looking for ~3m.

Looking at MOD-IDRA I notice it had a 33 ohm resistor which by rough maths makes it about 50mA (I think). It looks like a surface mount 0805 which I'm a chance at re-working.

So how bad would it be to put a 20R in there ? I should be about to get a .25W or maybe a .333W and this should push the IR diode a bit harder maybe 80-90mA ?

Sorry if its poor form to talk about hacking away at the Olimex product here, I'm not an electrical engineer, if this is a bad idea, just tell me and I'll come up with a different solution.

#22

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 12, 2025, 01:48:27 PM

Just a follow up - I ended up getting an old Gopro Session camera and rigging it up to watch the transmit LED, and it DOES show the LED blinking.

It may not be a super scientific test, but I hope it confirms the hardware is ok and as LubOlimex pointed out, it's just the code.

I'm using ESPHome and I might just be struggling to get it to support Arlec signalling, which I'm guessing is Whynter from the earlier test which it determined from the Arduino-IRremote library.

#23

ARDUINO / Re: BC66 NB-IoT Module (DevKiT...

Last post by LubOlimex - December 11, 2025, 01:13:06 PM

Maybe try this, refer to the comments in the README files: https://github.com/OLIMEX/NB-IoT/tree/master/SOFTWARE/AT_restore_tool

#24

ARDUINO / Re: BC66 NB-IoT Module (DevKiT...

Last post by LubOlimex - December 11, 2025, 08:09:56 AM

Hmm, so even Quectel support doesn't have the AT firmware?

#25

ARDUINO / Re: BC66 NB-IoT Module (DevKiT...

Last post by ameero95 - December 10, 2025, 11:31:09 AM

Hello LubOlimex,

Did you write e-mail to the support or post in the forums? Please post in the Quectel forums and link me the forum thread where you requested the firmware.

I guess I am out of luck here huh?

This module is EOL already. Much appreciation https://forums.quectel.com/t/re-how-to-get-quectel-standard-firmware/53512?u=ameer

#26

New Products release / FOSDEM 2026

Last post by olimex - December 10, 2025, 09:57:34 AM

Our Soldering Workshop proposal has been officially accepted for FOSDEM 2026.
On 31 January, from 10:00 to 17:00, participants will assemble the RVPC, an open-source hardware and software retro-style RISC-V computer. https://olimex.wordpress.com/2025/12/10/we-will-run-soldering-workshop-for-rvpc-the-retro-style-risc-v-computer-on-fosdem-2026/ #fosdem #riscv #oshw #floss

#27

UEXT / Re: MOD-IRDA faulty ?

Last post by LubOlimex - December 09, 2025, 09:13:22 AM

Umm easiest way is with another MOD-IRDA, but also with some device (TV, AIRCON, etc) that you know for sure what protocol it uses, and then use the same protocol on the PoE + MOD-IRDA combo.

#28

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 09, 2025, 06:22:48 AM

Good news, I patched the project, moved it from Arduino to Platformio and updated the IRremote library to 4.5.0

It now seems to be working, it receives IR from the remotes ok, how can I test its ability to send though ?

#29

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 09, 2025, 02:47:20 AM

Yes, I have tried a few remotes, but nothing seems to come through.

I did notice this in the console:

Code Select Expand

Reconnecting to /dev/cu.usbserial-1430 .... Connected!
...WiFi connected at: 10.1.30.6
Use this URL to connect: http://10.1.30.6/
Webserver started...
**************************************************************************************************
Thank you for using the IRremote library!
It seems, that you are using an old version 2.0 code / example.
This version is no longer supported!

Upgrade instructions can be found here:
 https://github.com/Arduino-IRremote/Arduino-IRremote?tab=readme-ov-file#converting-your-2x-program-to-the-4x-version

Please use one of the new code examples from the library,
 available at "File > Examples > Examples from Custom Libraries / IRremote".
Start with the SimpleReceiver or SimpleSender example.
The examples are documented here:
 https://github.com/Arduino-IRremote/Arduino-IRremote?tab=readme-ov-file#examples-for-this-library

Or just downgrade your library to version 2.6.0.

Thanks
**************************************************************************************************

So I'm still at a loss if its the hardware or the code, but either way, it's not working.

#30

UEXT / Re: MOD-IRDA faulty ?

Last post by LubOlimex - December 08, 2025, 04:52:26 PM

Did you try clicking some remotes on it?