Show Posts
Pages: [1] 2
1  Using Arduino / Project Guidance / Re: remote sensors - wich (wired) connection is better? on: April 05, 2013, 03:58:10 pm
Suggested RS485 protocol is very good decision, you will need on distance places some Tiny Arduino like Board if you prefare Arduino, also You may use 1-Wire combination by MAXIM-Dallas . They have various range of IC-s .

I use both, and i am satisfied of they performance.

2  Community / Products and Services / Re: Stackable femal headers with 15mm extra long square pins on: January 17, 2013, 04:47:59 am
Just comment,
i used that type of female headers almost year ago on my Arduino shields, and my customer are very satisfied.

Please be aware , for ICSP connection you will need some modification to work correctly.

3  Using Arduino / Project Guidance / Re: A newbie with a new idea on: August 23, 2012, 06:45:49 am
Theoretical it is doable smiley ... technically i didn't see that some one do it before. Arduino MEGA 128/256 with 3.2" LCD will do a job, however you will need to create some other electronic circuits to get input from your sensors, and create case which will guard Arduino and LCD from vibration.

4  Using Arduino / Project Guidance / Re: Sensor network to monitor a rooftop garden on: August 18, 2012, 11:07:01 am

I did few of measuring station using Arduino board with different sensors.

For temperature i like to use 1-Wire DS18B20 sensors, no meter where you measure i got relay precise results, plus you will need only one digital pin for few of them.

For pH, i use one self created sensor, without precise results.

For air humidity I use AM2301 sensor and I am very satisfied with working parameters.

For soil humidity I also use few different sensors but all of them measure resistance, what dissolve one of electrode after some time, so right now i work on capacitance sensor.

Hope that help.

5  Using Arduino / Project Guidance / Re: Using BT module on: June 17, 2012, 05:02:40 pm
It is not clear which chip is on your board, but that board for sure may work without Arduino uC .
How ever it is TTL I/O so you will need some voltage pump (max323) to work like normal RS232 interface (12V).

Interface expect normal serial input on 9600,N,8 rate, and you may send any type of data.
6  Using Arduino / Project Guidance / Re: Android + Arduino + DTMF + Some other Alternative on: June 13, 2012, 04:11:08 pm
Using Bluetooth is good way to communicate. I use and Linvor HC-05 module to exchange information between Android phone and Arduino.
7  Using Arduino / Project Guidance / Re: Temp to SMS on: June 07, 2012, 05:31:29 am
HI, i also measure ambient temperature with 1-Wire Maxim IC DS18B20. For sending information to SMS you will need something like

Connect DS18B20 to Arduino, Arduino to GSM module using RS232 some small programing and that is it smiley
8  Using Arduino / Project Guidance / Re: sensor data via Cat6 / RJ45 / breakout board on: June 04, 2012, 03:10:15 pm
According, all information you write it spouse to be problem with common ground. Please check wiring diagram for 1-Wire system by Hobby Boards , and try to reimplement for your purposes.
9  Using Arduino / Project Guidance / Re: sensor data via Cat6 / RJ45 / breakout board on: June 03, 2012, 04:34:47 pm
how long is a cable, what exactly is your sensors (name, type, results signal). How look your schematic ?

I normally use 1-wire sensors over UTP cable without any problem.
10  Using Arduino / Project Guidance / Re: DHT11 + LCD weather station on: May 28, 2012, 04:10:31 am
First, your schematic generate your problem.

You connect LCD display pins to serial ports pins, which is O.K. if you dont use Serial communication at all. You need to free pins 0,1 moving that connection to some other digital pins.

11  Using Arduino / Project Guidance / Re: Seeking help in choosing components for temperature logging and wifi downloading on: May 23, 2012, 08:14:39 am

if you use Arduino Mega (128/256) or like to connect with other Arduino you may consider to use Data Logger Shield v 1.0 ( available on ebay.

I use it for many different temperature measuring and logging project. It is available in different configuration depends of needs. For temperature measuring depends what you measure, but in my case I use Maxim IC 1-wire DS18B20.
Best regards
Dubravko Penezic
12  Using Arduino / Project Guidance / Re: Arduino Bar Project on: May 20, 2012, 05:38:50 pm
your described symptom suggest that you have problem with current sink from arduino board, can you provide schematic how you connect relay board and arduino ?

Best regards,
Dubravko Penezic
13  Using Arduino / Project Guidance / Re: Water Heater on: May 20, 2012, 05:30:29 pm
Hi just small info , DS18B20 have range from -55 ℃ ~ +125 ℃ which is written on link robtillaart give you, but you read only first sentence which describe precision.
14  Using Arduino / Project Guidance / Re: temperature monitoring on: May 20, 2012, 06:51:43 am

i do temperature monitoring, for different purposes (room environment) . For that purposes I create my own shields and few other PCB-s .

For data loging and storing configuration I use Data Loger v 1.0 shield (look at ), also same shield have pin header for connecting simple LCD (20x4) and 5 switch keyboard (analog line).

For connection of temperature probe I use A/D Expansion Shield, and use Maxim IC DS18B20 1-Wire sensors.

Finally for alarms I use I2C Digital IO Board two RGB LEDs with red-green-blue sequence (hot-normal-cold) , and 2 orange LEDs signal changes (or you may use buzzer).

Mostly all of code may fit in 32KB, but because of price and convince i use Arduino MEGA 256.

Hope that help you.

Best regards,
Dubravko Penezic
15  Using Arduino / Project Guidance / Re: Shutdown Button on: March 07, 2012, 03:30:35 am
Maybe to conclude :
You would like to use button switch to tell Arduino program to turn off LCD display.

You may do that using standard schematic for digital/analogue push button input line and digital to transistor output line.

Pages: [1] 2