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Topic: Arduino UNO or Leonardo? (Read 24 times) previous topic - next topic

CrossRoads

Perhaps. We get some posts with one question from the original poster, and then days of discussion among every one else.
Sometime with comments months! later. So a little over a week behind is not too bad 8)
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

koherent

Can anyone tell me if he/she has tried manufacturing an arduino on their own? What was the approx. cost including the ICs? please give me an idea for a quantity of 5!

CrossRoads

Sure, many of us have.
You can see a bunch of examples of arduino-like boards here
http://www.crossroadsfencing.com/BobuinoRev17/

PCB, $3.40 each in lots of 10 - 54mm x 69mm.  Or you can wire it up discretely on a piece of perfboard.
ATMega328P-PU
10K resistor
anti-latch up diode (such as 1N4148)
16 MHz xtal
22 pF caps
100nF caps
DC power connector
reverse polarity protection diode (such as 1N4158)
USB connector
PTC polyfuse
6 pin female header
8 pin female headers
FT232RL chip (or a FTDI module, or a CP2102 module)
2x3 icsp header
reset switch
5v regulator
47uF caps
4 LEDs
4 1K resistors

leaves out the autopower switching parts

Price it up, see what you get. dipmicro.com has good prices on almost all the parts.
Some things are only available in surface mount, such as the polyfuse.

If you want a minimal component board (no USB interface) you can build up this board
http://www.nkcelectronics.com/arduino-runtime-board-rev-b.html
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

Jack Christensen

Adafruit's Boarduino is a nice Uno-compatible clone, and inexpensive. It has no USB interface on board, so an FTDI cable or one of these is needed for programming. Makes sense to me not to duplicate that on every board. The Boarduino is open-source, so if a person wanted a bunch (maybe 10) and was willing to get the boards made and buy the parts, I'd bet they could be made for $10 a copy, maybe less.
MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

CrossRoads

Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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