Senior Member
Joined: 13/08/2024
Location: NetherlandsPosts: 104
| Posted: 02:31pm 13 Oct 2024 |
This is a continuation of my comment in pil99's thread about IR Remote Control Rx and Tx for Philips RC-5 Protocol. I do not want to hijack his thread so I start my own.
I have a beautiful vintage amplifier, HK6350R, without a remote.
The device had some strange problems, the volume runs high or low at random or dropped random in standby mode. The problem was the M50761 processor IC201. After I removed this chip everything worked normal albeit without remote control.
I built the example in the MMBasic manual with an infrared receiver and the simple program example. I had to add 2 resistors of 3k3 and 2k2 because the receiver is fed with 5V. But the first test went smoothly.
edit
SetPin GP6, IR
Dim INTEGER DevCode, KeyCode
IR DevCode, KeyCode, IRInt
Do
'body
Loop
Sub IRInt
Print "Received device = " DevCode ", key = " KeyCode
End Sub
ESC:Exit F1:Save F2:Run F3:Find F4:Mark F5:Paste
Below you can see the results of the test, volume +, volume -, Power On and Power Off.
'Test with TFMS 5360 IR receiver 5V type and Harman Kardon substitue remote HK AVR145
Received device = 270, key = 227 'volume up
Received device = 270, key = 19 'volume down
Received device = 270, key = 3 'power on
Received device = 270, key = 249 'power off
The next step is to set up an IR transmitter with a 2nd PICO and check if the communication can be emulated from the HK-remote. If that works, the next step is to modify the program so that it can be embedded in the HK6350R electronics.
To be continued
Edited 2024-10-14 00:39 by Marcel27