Hello,
I'm experimenting with the VS1838 IR receiver to receive signals over a longer distance.
But after 4/5m the received signals are starting to be garbage. According to the datasheet I should get 10-15m range
The receiver is connected like this
And I drive the led with a NPN transistor
The leds used have a forward current of 100mA
Am I doing something wrong? Or am I just missing something obvious?
Edit: for some reason the img tag is not working
Post YOUR schematics and YOUR code. Which LEDs are you using, what is the supply voltage, what value of current limit resistors?
JCA34F:
Post YOUR schematics and YOUR code. Which LEDs are you using, what is the supply voltage, what value of current limit resistors?
I copied the receive schematic exactly.
This is the send schematic: schematic
I use these led's led
But there is nothing wrong with that (I use it in another project and get 6 m reliable transmission)
I connect the led to 3.3V with a 33ohm resistor for a current of +-100mA
It is just the example code for the IRRemote library.
But I think it has nothing to do with the code and sending circuit (like I said: I only get problems with receiving from a +5m range)