DHT11 Library for Arduino 1.0


Category : Arduino, Electronics

DHT11 is a cheap and easy to use temperature and humidity sensor. But since it’s digital and only uses one pin there is a great library for it!

Of course it has some problems compiling on Arduino 1.0 and the one I found on the arduino.cc playground had problems. So I modified it, and put both the library and the example in a nice and easy to unzip package. The example sends data on serial back to the pc, so it looks like this when posting results:

Credit goes to the arduino playground for the library and example code.

Download Arduino DHT11 Sensor Library

Arduino Mega on it’s way!

Category : Arduino, Electronics

This is a beast compared to the old Diecimila, well I’ll let the specs speak for themself. Diecimila specs in parentheses.

Arduino Mega specifications:

Microcontroller: ATmega1280 (ATmega168)
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Input Voltage (limits) : 6-20V
Digital I/O Pins: 54, of which 14 provide PWM output
(14, of which 6 provide PWM output)
Analog Input Pins: 16
DC Current per I/O Pin: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 128 KB of which 4 KB used by bootloader
(16 KB (of which 2 KB used by bootloader)
(1 KB)
(512 bytes)
Clock Speed 16 MHz

Yepp, pretty much outclasses the old arduino 😀