Hi,
I've been thinking to use this shield to use it as a speedometer for my bike, but I need, at least, 3 pins to use measure the speed...and I am not sure how to wire the Arduino using this shield.
Please, can you tell me if you have done something similar? For example, to connect sensors to the Arduino and use this shield to show the values....
Do you think that could be a good idea for my project?
Thanks in advance,
A.
2.8" TFT Touch Shield as a Speedometer
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_bill
- Posts: 88154
- Joined: Sat Feb 07, 2009 10:11 am
Re: 2.8" TFT Touch Shield as a Speedometer
Available pins are digital pins 2,3 and analog 4&5.
- tlerdrden
- Posts: 80
- Joined: Fri Nov 30, 2012 4:46 pm
Re: 2.8" TFT Touch Shield as a Speedometer
Ok, thanks for the prompt response.
But i've seen in the tutorial page of the tft display, that, I have to use one of this shields:
http://www.adafruit.com/products/51http ... rewshield/
Which one best fits for my application? I want to use it for my speedometer, and I need, at least, the VCC, GND and digital 2 pin.
Thanks again,
But i've seen in the tutorial page of the tft display, that, I have to use one of this shields:
http://www.adafruit.com/products/51http ... rewshield/
Which one best fits for my application? I want to use it for my speedometer, and I need, at least, the VCC, GND and digital 2 pin.
Thanks again,
- adafruit_support_bill
- Posts: 88154
- Joined: Sat Feb 07, 2009 10:11 am
Re: 2.8" TFT Touch Shield as a Speedometer
The proto shield plus some stacking headers would be an easy way to access those pins. But for a bike computer I expect you would prefer a more compact package. How good is your soldering? With care you should be able to tap into the three pins you need without adding to the bulk of the package.
- tlerdrden
- Posts: 80
- Joined: Fri Nov 30, 2012 4:46 pm
Re: 2.8" TFT Touch Shield as a Speedometer
Yes, you are right, I prefer the bike computer as compact as possible, so...Do you suggest to solder those three pins without any shield?
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: 2.8" TFT Touch Shield as a Speedometer
You could try to tack wires onto the pin solders on the bottom of the Arduino. Make sure you have some sort of strain-relief on the wires - maybe hot glue them to the board.
Or, you could wrap and solder the wires onto the bases of shield pins, so that the shield will still insert into the arduino. That would work better if the wires are fine gauge - you want to interfere with the insertion as little as possible.
Or, you could wrap and solder the wires onto the bases of shield pins, so that the shield will still insert into the arduino. That would work better if the wires are fine gauge - you want to interfere with the insertion as little as possible.
- adafruit_support_bill
- Posts: 88154
- Joined: Sat Feb 07, 2009 10:11 am
Re: 2.8" TFT Touch Shield as a Speedometer
Another approach is to wrap the wires around the shield pins and solder as close to the bottom of the shield as possible before plugging the shield into the Arduino. In any case, you will want to use some form of strain relief as Driver Block suggested.
- tlerdrden
- Posts: 80
- Joined: Fri Nov 30, 2012 4:46 pm
Re: 2.8" TFT Touch Shield as a Speedometer
Good! I will try with some of your answers and share the experience.
Thanks!
Thanks!
- tlerdrden
- Posts: 80
- Joined: Fri Nov 30, 2012 4:46 pm
Re: 2.8" TFT Touch Shield as a Speedometer
Just an additional question: What is the best enclosure to put an Arduino Uno+TFT Shield? I know about the enclosure id:271 ,but it is unproper to use the touchscreen...
Do you know about some enclosure?
Thanks.
A.
Do you know about some enclosure?
Thanks.
A.
- adafruit_support_bill
- Posts: 88154
- Joined: Sat Feb 07, 2009 10:11 am
Re: 2.8" TFT Touch Shield as a Speedometer
We do not currently have an enclosure that fits the touch shield. Most people make custom enclosures or modify off-the-shelf enclosures to fit.
Please be positive and constructive with your questions and comments.