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1006  Using Arduino / Project Guidance / Re: Strange problem with DIY arduino on: August 10, 2011, 04:14:36 pm
Hi MAX - the fault you are discribing is normaly caused by wrong lock bits being set.

How are you burning the boot loader?
here is my setup :

atmega8.bootloader.unlock_bits=0x3F  <---- open for programming bootloader
atmega8.bootloader.lock_bits=0x0F     <---- Lock the area used by the bootloader

Hope this helps

1007  Using Arduino / Installation & Troubleshooting / Re: Tx Rx leds always ON. PC doesn't detect Arduino on USB anymore. on: August 10, 2011, 12:16:16 pm
Hi, A few things to check -

Make sure there is NOTHING attached to the arduino when you switch it on

check the chip is inserted the correct way

Make sure there are NO bent/missing pins on the chip

if possible test the unit on another computer

The ftdi may be fried OR it may be another fault - look at the ftdi, are there any jumped connectors (there should be 2 pins connected)

Failing that its a replacment board (or replace the ftdi if you have the equipment), OR you could buy a programmer to bypass the ftdi (and bootloader for that matter)
you can get one on e-bay for about £4 GBP - $8.00 US

1008  Development / Other Hardware Development / Re: Eagle - Board Development on: August 08, 2011, 02:37:17 pm
An example of a board is attached, excuse the miss aligned holes - minor miss-alignment of exposure mask for double sided board. The board now completed, still works.
1009  Using Arduino / Microcontrollers / Re: Cheapest way to program standalone project on: August 06, 2011, 04:53:50 pm
Its easy :
Close the IDE
unzip this into a folder called hardware in your sketches folder*
then start the IDE

*should read :


1010  Using Arduino / Microcontrollers / Re: Cheapest way to program standalone project on: August 06, 2011, 03:12:28 pm
You could look here :

Its the cheapest programmer I've seen

Hope this helps

1011  Using Arduino / Installation & Troubleshooting / FREE ARDUINO REPAIR SERVICE - UK BASED on: August 05, 2011, 05:18:05 pm
Free repairs for forum members - Arduinos, Shields etc.

Send your Arduino(Official or Clone) or shield / module / brick to me, I'll diagnose the fault and get back in touch with you
with a price of parts required - if viable.

YOU pay return postage (Via paypal).

E-MAIL ME WITH WHAT YOU HAVE : I will pay Postage. (Donations welcome - i.e. - just send it).

Address :

Room 2
224 Tantallon Avenue

Mark Attn of Drew
1012  Using Arduino / Installation & Troubleshooting / Re: Uno - all LEDs stay lit after short on: August 05, 2011, 05:07:32 pm

If you send the board to me, I will look at it, and repair it if viable. I offer a this as a free service to this forums users.

See :,67197.0.html

You can Email me : for info.

1013  Using Arduino / Installation & Troubleshooting / Re: Fried serial port? on: August 05, 2011, 04:59:12 pm
Hi - Can you tell us :

What operating system you are using
what com ports are shown on system
what you have tried
have you tried another computer?
have you disconnected EVERYTHING except usb?

We can't really help if we don't have this type of info.

1014  Using Arduino / Microcontrollers / Re: Replacement part for FTDI FT232RL on: August 04, 2011, 04:31:23 am
Hi - I tend to buy USB - serial converters from ebay, for £1.15 on singles or as low as £0.87 for 100+ (This is an offered price, I only buy in 10s), Rip off the case, solder it to my board without the 9 pin D - Tx, Rx ad GND (and +5 for low power boards) , and invert the signals with resistor/transistor (or inverter ic, when I have them) - total cost, £1.50 (appx) to add usb to my projects.

Just an Idea.

1015  Development / Other Hardware Development / Eagle - Board Development on: August 02, 2011, 06:00:39 pm
Didn't know where to post this, so if its in the wrong area I apologise.

I've been asked a few times how I make my Prototypes at home.

I make my prototype boards, both single and double sided, with Negative Resist film & Solder mask with Dynamask.
Or pre-sensitised Positive boards, when I get them cheap enough.

 I get these from

I Design in EAGLE(free version), and here is the .scr file I use to create the Bitmaps for my printers (I have a 600 dpi & a 1200dpi printer).


RUN ulpmessage '<center>Saving Bitmap (.BMP) for Top & Bottom Copper<br>Solder Mask layers<br>& Top Silk Screen<br><author>Author: </author></center>';
DISPLAY = _current_layers_ @;
set palette black;
display none top pads vias Dimension;
export image top600.bmp monochrome 600;
display none bottom pads vias Dimension;
export image bottom600.bmp monochrome 600;
display none _tsilk Dimension;
export image silkscreen600.bmp monochrome 600;
set palette colored;
display none tStop Dimension ;
export image topsoldermask600.bmp monochrome 600;
display none bStop Dimension;
export image bottomsoldermask600.bmp monochrome 600;
display none bPlace tNames Dimension;
export image bottomsoldermask600.bmp monochrome 600;
set palette black;
DISPLAY _current_layers_;
DISPLAY = _current_layers_;

This is saved as NegOutBMP.scr and assigned to F12.

The version I have included is for 600 dpi Printers, but it is easy (and self evident what to change).

Negative exposure boards - use 'set palette black'
Positive exposure boards - use 'set palette colored'

The Solder Mask is Positive Acting for Exposure - but uses Negative developer.

If any one is interested I will post a full step by step write up of my process.


1016  Community / Products and Services / Re: FREE ARDUINO REPAIR SERVICE - UK BASED on: August 01, 2011, 06:47:19 pm
Hi Terry - Spooky, VERY similar to my test rig, yours is implemented a bit better in software though.

So far I've had 4 Units sent - only 1 BER, ftdi fried, 328 fried, and tracks on the board fried, kind of happens when you stick 36v on the data lines.

All the best

1017  Using Arduino / Microcontrollers / Re: ATmega 328 with Uno Optiboot on: July 24, 2011, 07:35:11 am
Hi Koop, can you post your 'fix' so other forum members can have the benefit of your experiences.
1018  Community / Local Groups / Central Fife - Scotland! on: July 24, 2011, 06:46:50 am
Any body interested in attending a Group in this area - if so leave a reply - if there is enough interest then I'll set up a monthly or bi-monthly meeting.

Hope to hear from you.

1019  Community / Products and Services / FREE ARDUINO REPAIR SERVICE - UK BASED on: July 21, 2011, 10:21:52 am
I have a FREE service to test Arduinos - I only charge for parts to repair them . You cover return postage Via PAYPAL or pre-paid envelope if you are in the UK.

PM me and I'll give you my address, send it to me, I'll diagnose fault - and provide cost of repair (if viable).

I can also program bootloaders or sketches onto chips - I do charge 50p a chip with a minimum charge of £1.

All the Best


MY E-MAIL : for faster response.
1020  Using Arduino / Installation & Troubleshooting / Re: Did I kill it? on: July 21, 2011, 10:10:33 am
You let out the magic blue smoke! ! ! ! The chances are you fried your arduino - I have a FREE service to test Arduinos - I only charge for parts to repair them . You cover return postage Via PAYPAL. PM me and I'll give you my address, send it to me, I'll diagnose fault - and provide cost of repair (if viable).

All the Best

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