Tagged Questions

0
votes
0answers
48 views

Multiplex data and LED pin

I'm looking at performing a chip conversion for the Sparkfun LED RingCoder. The sample code provided with the product works well on an Arduino UNO, but it uses a pin for each I/O - 5 pins for the ...
0
votes
1answer
109 views

virtual light communication

I have to design a project that uses an LED to transmit data and a LDR to receive the data or signal from the LED. But the problem is I have to use two Arduino UNO boards, one for LED transmit and ...
7
votes
3answers
722 views

Using a LED to transmit data

I am curious about the possibilities offered by LEDs to transmit data over a short range (2 or 3 meters), and what maximum data transmission rate can be expected from carefully chosen, but ...
1
vote
3answers
295 views

Connecting LED to RO pin of RS485 Transceiver

I am using this RS485 transceiver in a circuit of mine and I'd like to place a tiny 0805 LED in series with a 1k resistor coming off of the RO (receiving) pin. I'm hoping this would result in ...
1
vote
3answers
504 views

Choosing The Right IR Emitter for a Photodiode

I am working with the following IR photodiode http://www.mouser.com/catalog/specsheets/bpv22nf.pdf However, I am having some trouble figuring out what sort of IR emitter I can use with this. I am ...