How to use some sensors with IOIO-OTG board?

[정병진]

I have a IOIO-OTG board and DS18B20(temperature sensor), PulseSensor.

* DS18B20 : http://datasheets.maximintegrated.com/en/ds/DS18B20.pdf
* PulseSensor : http://pulsesensor.myshopify.com/pages/pulse-sensor-amped-arduino-v1dot1

Each sensor have only 3 lines. (Vcc, GND, DQ)
How to get sensor value?
When I reference Arduino Code, it write/read bytes to only 1 pin.
When I open digital input and digital out with 1 pin, IOIO has a exception.

For getting temperature value from DS18B20, I should execute follow commands.
reset()
write(0xcc)
write(0x44)
reset()
write(0xcc)
write(0xbe)
read()
read()

Please, suggest how to use these sensors with some example.

[Ytai Ben-Tsvi]

The IOIO doesn't currently support Dallas 1-Wire interface AFAIK.

Adding such support probably requires custom firmware.

There are most likely equivalent sensors to these ones with an I2C interface.

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[Santiago Alfaro]

I haven't used that sensor and according to Ytai you might not be able to.

But I did get really good results with these sensors and wrote a little demo here. It is my first time trying to write demos as I learn all this stuff but I would love it if you find it useful.

[정병진]

Thanks Ytai :)

I bought new temperature sensor(TMP36) today.

How about this analog sensor for using with IOIO?

Maybe I think that I can get this sensor value with AnalogInput.read() function and some calculation.

Is it right?

2013년 7월 18일 목요일 오후 2시 17분 54초 UTC+9, Ytai 님의 말:

[Ytai Ben-Tsvi]

This should work fine.

[mohammed said]

hi 정병진 i was trying to use this sensor " PulseSensor : http://pulsesensor.myshopify.com/pages/pulse-sensor-amped-arduino-v1dot1" with ioio-otg i couldn't make it work so if you have any code for it please replay it here