02-25-2023, 01:17 AM
Hi Kincony,
Many thanks for helping me with this modification.
I installed a header (similar to the 433 MHz RX header) in place of the IR diode. The IR diode can now plugin to the header to continue as IR Rx. This allows a header connected to AM2301 to replace the IR diode when I need this. The AM2301 is mounted close the the A4 and works well.
The AM2301 has an internal 4K7 pull up resistor which would operate in parallel with the board mounted 47K designed for the IR diode. This enables both units to be optimised without changing the 47K resistor.
I am sure there are other products that can be plugged into this if needed by others so long as their pull up resistor is either 47K or found internal to the module.
Rgds
Adam
Many thanks for helping me with this modification.
I installed a header (similar to the 433 MHz RX header) in place of the IR diode. The IR diode can now plugin to the header to continue as IR Rx. This allows a header connected to AM2301 to replace the IR diode when I need this. The AM2301 is mounted close the the A4 and works well.
The AM2301 has an internal 4K7 pull up resistor which would operate in parallel with the board mounted 47K designed for the IR diode. This enables both units to be optimised without changing the 47K resistor.
I am sure there are other products that can be plugged into this if needed by others so long as their pull up resistor is either 47K or found internal to the module.
Rgds
Adam