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166  Using Arduino / Project Guidance / Re: Help a newbie make an e-reader on: January 04, 2014, 01:06:17 am
The LCD on-board using SSD1803 controller is 90% compatible with the widely-used HD44780 controller.
and it can use 4-/8-BIT, SPI (4-WIRE) AND I²C (2-WIRE) interface

The display is powered from a single 3.3 V input.

A 150 mA constant current source is needed for the LED back lighting

you can try the code from these web site

http://mbed.org/cookbook/Text-LCD-Enhanced

https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home
167  Using Arduino / Project Guidance / Re: Counter for measuring distances (newbee) on: December 29, 2013, 09:36:47 am
What you doing more like the arduino bicycle computer
http://lmgtfy.com/?q=arduino+bicycle+computer
168  Using Arduino / General Electronics / Re: Battery Powering Arduino Pro Mini 5v on: December 29, 2013, 03:59:38 am
Only +5V should connected to Vcc pins, if you have higher then 5V, than you have to connect to Raw input pin.

When you say "arduino will not work" but what is not working? have you upload a Sketches? may be you can try the Blink example sketche.
169  Using Arduino / General Electronics / Re: What is in my board and what can it do? on: December 28, 2013, 07:45:06 am


LDR Light sensor


IR remote Receive


vibration sensor
This Vibration Sensor use the SW-18015P from MEC to measure the vibration.It can triggered from any angle, and often used for flex, touch, vibration and shock measurements.




IR photo transistor sensor


temperature sensor


Buzzer


Ball Bearing Tilt Sensor


NPN SS8050 & PNP SS8550 Transistor
http://www.fairchildsemi.com/ds/SS/SS8050.pdf
http://www.fairchildsemi.com/ds/SS/SS8550.pdf


3 digits 7 segment display
170  Using Arduino / General Electronics / Re: What is in my board and what can it do? on: December 27, 2013, 05:53:09 pm
Are your kits look like these




171  Using Arduino / General Electronics / Re: Connection Issue on: December 19, 2013, 07:57:14 pm
What is the size of your jumper wires?
You can use CAT 6 plugs which able to fit cable size AWG 23-26.
172  Using Arduino / General Electronics / Re: Battery Powering Arduino Pro Mini 5v on: December 17, 2013, 10:23:35 pm
Yes, one vcc pin and split it and then connect one half to the bread board and one half to the fabrickit Coin Cell Brick arduino.
173  Using Arduino / General Electronics / Re: Battery Powering Arduino Pro Mini 5v on: December 17, 2013, 10:00:42 pm
Both Vcc pins connected together, you can use any one of them. But I suggest keep FTDI Header exclusively for the FTDI.
174  Using Arduino / General Electronics / Re: Battery Powering Arduino Pro Mini 5v on: December 17, 2013, 08:43:57 pm
Quote
The power pins are as follows:

RAW. For supplying a raw voltage to the board.  3.35 -12 V (3.3V model) or 5 - 12 V (5V model)
VCC. The regulated 3.3 or 5 volt supply.
GND. Ground pins.

You connect fabrickit Coin Cell Brick arduino to the VCC since it is regulated 5 volt supply.

Quote
A six pin header can be connected to an FTDI cable or Sparkfun breakout board to provide USB power and communication to the board.
upload information to it using  FTDI cable with the six pin header.

http://arduino.cc/en/Main/ArduinoBoardProMini
175  Using Arduino / General Electronics / Re: DUE 3,3 V output -> 5 V on: December 17, 2013, 11:02:10 am
To drive LED's and RELAY you can use darlington open-collector driver chip like the ULN2003a or ULN2803a can drive about 500mA.
but the low out put was about 1.1V when conducted and not 0V, however it was not a problem for LEDs and Relays.
176  Using Arduino / General Electronics / Re: DUE 3,3 V output -> 5 V on: December 17, 2013, 06:15:04 am

I would like to know if there is a device to do the logical conversation between 3,3V and 5V like a 1 to 1 gatter IC or something, which is recommanded for those task.

you can use
74LVC245 or 74HC4050 level shifter
4-channel I2C-safe Bi-directional Logic Level Converter
177  Using Arduino / Project Guidance / Re: Selection of the right Ethernet Shield AND Library on: December 16, 2013, 09:26:52 pm
Look at this site, onewire and EtherCard library able to work together, you need to watch out on your RAM usage.
http://myarduinotoy.blogspot.sg/2013/01/a-basic-temperature-web-server.html
178  Using Arduino / General Electronics / Re: Powering arduino Pro Mini with 7,4V Lipo battery on: December 16, 2013, 06:55:10 pm
You can use this step-up/step-down voltage regulator to output fixed 3.3 V  through its whole discharge cycle of your battery.
http://www.pololu.com/product/2122
and it will cut off at 2.7V
My mistake on assumption that the regulator will cut off below 2.7V

This regulator will NOT protect a LiPo from overdischarging and that a separate protection circuit is therefore required.
It does not enter shutdown mode until the input drops to around 1.8 to 2.2V, it is possible to continue draining your battery when the voltage drops below 2.7V.
179  Using Arduino / General Electronics / Re: Powering arduino Pro Mini with 7,4V Lipo battery on: December 16, 2013, 06:29:04 pm
You can use this step-up/step-down voltage regulator to output fixed 3.3 V  through its whole discharge cycle of your battery.
http://www.pololu.com/product/2122
and it will cut off at 2.7V

Hello.

You should not count on this regulator to prevent your LiPo battery from over-discharging.  You can find out more information about this here:

http://forum.pololu.com/viewtopic.php?f=3&t=7917

- Ben
Thanks for the info
180  Using Arduino / Project Guidance / Re: GLCD_libraries_problem on: December 16, 2013, 10:48:54 am
glcd v3 Forum discussion
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