I'm a beginner in ARM programming how do interface DHT22(temperature and humidity sensor) with LPC2148 I need help with flow chart and code if possible thank you uys in advance
Hi Abhishek, you will need to implement a 1-wire master using GPIO or you need a I2C to 1-wire bridge. 1-wire is very similar to I2C. I would recommend using GPIO to implement a 1-wire master in software since it would be easier.
You can find lpc2148 gpio tutorial : www.ocfreaks.com/.../ and I2C basics tutorial : www.ocfreaks.com/.../
I am planning to do a tutorial on interfacing 1-wire devices with LPC2148 so it helps others who are using LPC2148 :)
-Regards
Hi Urang.
I look at your tuts but they are very old now. No one wants to use the old parts. When are you updating them to the cortex?
You must also add tut for keyboard and water sensor. This will be very useful to everybody.
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