How to send some text over Infrared? can I use Serial1 to do that? any tutorial for that? THANKS! :blush:

Have you searched for e.g. “infrared” already?

To save you the trouble of having to click the search button, take a look at this topic: [image] IR transmitter & recorder Social Project Share Hey, I’ve been thinking that I’…

I did search on the google http://www.terryjfield.com/?p=22 is it same if I use the Serial1 or Serial2?

That should work just the same - you might just want to redim the resistors for 3.3V rather than 5V. The only problem with a setup like this is that it has absolutely no fault tolerance/recovery logic built in. If your signals get muddled up (e.g. stray light from other IR sources, obstacles, …) y…

In general, using un-modulalted IR will get you very short range and lots of errors & interference. So using some sort of checksum is advisable. This approach is similar to IRDA. With the right sensors good baud rates are achievable at short ranges. CIR (Consumer IR e.g. TV IR remote control) uses…

Hi, Thanks for reply I am using TSOP4138 receiver and Vishay TSAL6100 irLED is it ok for long range communication? what speed should I use, 2400? here is my code: const int irTX = D1; const int irRX = D0; char receive[64] = ""; void setup() { Serial2.begin(9600); Spark.variable("receive", rece…

As for your error you’d need to do something like while (Serial2.available() && i < 62) { // read as long there are bytes, but no more than 63 receive[i++] = (char)Serial2.read(); // one byte at a time } receive[i] = '\0'; // terminate string Serial2.write(receive); // echo ba…

[image] 5h177y: I am using TSOP4138 receiver and Vishay TSAL6100 irLEDis it ok for long range communication? what speed should I use, 2400? Hi @5h177y It looks like you are using a consumer IR receiver with 30-50kHz bandpass filter and a bare IR LED transmitter. How are you modulating the I…

[image] 5h177y: Hi, Thanks for replyI am using TSOP4138 receiver and Vishay TSAL6100 irLEDis it ok for long range communication? what speed should I use, 2400? The TSAL6100 is probably one of the best IR LEDs/emitters to use. (Narrow angle / more range) TSOP4138 wouldn't be the best, in my o…

Thanks ScruffR! No compile error, but it shows some unrecognizable characters… serial monitor: [image] browser: [image] my code: #include "Serial2/Serial2.h" char read[8] = ""; char write[8] = "hello"; int i = 0; void setup() { Serial.begin(1200); Serial2.begin(1200); Spark.variable("read",…

Spark core IR communication?

Getting Started

Moors7 February 2, 2015, 9:31am 3

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Spark core IR communication?

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