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Topic: Ferduino Mega 2560 (Read 4528 times) previous topic - next topic

FernandoGarcia

Jul 11, 2014, 08:10 pm Last Edit: Jul 11, 2014, 08:14 pm by FernandoGarcia Reason: 1
Hi!

Visit my site and see my new board dedicated to an aquarium controller but, that can be used to other projects respecting the pinout.






www.ferduino.com

Best regards.

Fernando Garcia

CrossRoads

Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

robtillaart

Well done!

Can you tell a bit about the design ? e.g. specific what IO's it has etc
How long did this project take you?
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

FernandoGarcia

Hi!

Thanks by comment!

I spent approximately 6 months.

I'm a civil engineer, this is my first electronic project.

Was done to join many circuits necessary to my aquarium controller.

The I/O and additional circuits are basically:

9 Jack phone 3.5 mm (6 are connected in analog pins and has pull up resistor of 10K and LEDs in parallel to be used with float switches, 3 are connected to a digital pin and has a resistor pull up of 4.7K Ohm  to be used with temperature sensors in parasite mode);

2 Jack RJ45 (1 connected in an ULN2003 that’s controlled by analog pins, this circuit allow control devices untill 50V / 500mA, 1 connected to 3 analog pins and 4 digital pins);

1 Header 2 x 20 connected to hex buffers that allow connect TFT’s of 3.3V directly;

1 Connector DB37 in parallel with the header 2 x 20 that allow connect TFT’s of 3.3V using a serial cable;

2 Jack RJ11 (1 connected to digital pins, GND and 5V);

1 LAN;

1 Connector DB25 (connected to 2 ULN2803 controlled by an expander I2C);

4 Connector BNC (connected to 4 sockets to be used with circuits from Atlas Scientific);

Real Time Clock (with battery holder and jumpers to select the pins ’20, 21 or 18, 19′);

Ethernet controller (w5100);

Expander I2C  with 16 I/O pins (PCF8575);

Multiplexer for 4 devices UART (74HC4052);

Buzzer for alarm (with trimpot to adjust of volume and jumper to disable);

Hex buffers for translation of voltage in logic level (for TFT touch);

Wireless Transceiver of 915MHz (RFM12B).


Best regards.

Fernando Garcia

FernandoGarcia

#4
Dec 05, 2014, 03:25 pm Last Edit: Dec 05, 2014, 03:26 pm by FernandoGarcia
Hi!

I did some prototypes of the enclosure for Ferduino Mega 2560.

Here's the first.

Total size is 177 x 162 x 70 mm.







https://www.youtube.com/watch?v=fhNwaef93b8

Here's the second.

Total size is 177 x 162 x 40 mm.





I'm thinking still about the best system to close the box without screws on top.

Best regards.

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