Timeline for Problem with LCD keypad shield and Arduino Uno R3
Current License: CC BY-SA 3.0
32 events
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| Jul 17, 2024 at 8:43 | comment | converted from answer | Piotr Wędrychowski | try this, turn the potentiometer more then 10 times clockwise: [1]: youtube.com/watch?v=ZA5vlDdpbkw | |
| Sep 24, 2017 at 5:12 | history | tweeted | twitter.com/StackArduino/status/911820570848907264 | ||
| Sep 24, 2017 at 0:27 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
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| Apr 24, 2017 at 4:55 | comment | added | Arden | Are you powering the arduino externally with a 9V battery or the LCD with a 9V battery. Most LCDs have lower voltage ratings. Can you be more specific about what kind of DC cable you are using, and how it works in you circuit? The problem seems to come from faulty wiring, or could just be damaged cables. | |
| Apr 24, 2017 at 2:44 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 25, 2017 at 2:26 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 23, 2017 at 2:19 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 24, 2017 at 1:29 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 25, 2016 at 0:51 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Nov 25, 2016 at 0:03 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 25, 2016 at 23:04 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 25, 2016 at 22:25 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Aug 26, 2016 at 21:40 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jul 27, 2016 at 21:34 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 27, 2016 at 20:48 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 28, 2016 at 19:02 | answer | added | Integrated Electronics | timeline score: 2 | |
| Jan 20, 2015 at 2:03 | comment | added | Chris Stratton | Neither 4xAA nor a typical 9V battery is really suited to powering an Arduino. Fundamentally, the board is not engineered for battery usage, but if you must, try at least 5 Alkaline or 6 rechargeable AA cells (and 7 wouldn't be bad). | |
| Jan 19, 2015 at 17:12 | comment | added | Anonymous Penguin | Do you have a wall adapter that's 9V? I still think the battery might not be full. | |
| Jan 19, 2015 at 16:45 | comment | added | wena2k432 | I tried to change the contrast and to change the power supplier but it dosen't work. With 9V display only blinks from time to time. I'm affraid that something isn't right with my Arduino. | |
| Jan 19, 2015 at 16:40 | comment | added | Anonymous Penguin | You originally mentioned a battery, so I was giving advice on a batter. Can you please post a picture of your wiring for the battery to the Arduino? Thanks! | |
| Jan 19, 2015 at 16:38 | comment | added | wena2k432 | Sorry. I plug the LCD Keypad Shield to my Arduino Uno R3. I connected Arduino to computer by USB cable and load example cod from this page: dfrobot.com/wiki/… Everything worked perfectly. When I disconnected Arduino, and instead of USB cable I used DC cable display didn't worked. The power led and LCD backlight was on but there where no letters or any other mark on display. When I changed cable back to USB it worked normal again. | |
| Jan 19, 2015 at 16:29 | comment | added | Anonymous Penguin | OK. First of all, have you tried adjusting the contrast? I don't know why that would change between power sources but it might. This image labels the thing you need to turn to adjust the contrast. Turn it slowly from one side to the other until you can see something. Also: the AAs can't provide enough voltage- even when completely full. (They're in series, right?) Add two more in series to achieve 9V at full power. Also, try replacing the 9V if needed since they drain quickly. Also, connecting to VIN and GND for sure? | |
| Jan 19, 2015 at 15:59 | comment | added | Anonymous Penguin | Can you please give us more than "it doesn't work?" That's really hard to diagnose. Please edit with circuit diagrams. Thanks! | |
| S Jan 19, 2015 at 15:59 | history | edited | Anonymous Penguin | CC BY-SA 3.0 |
Minor fixes
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| S Jan 19, 2015 at 15:59 | history | suggested | jbutler483 |
added tags
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| Jan 19, 2015 at 15:13 | review | Suggested edits | |||
| S Jan 19, 2015 at 15:59 | |||||
| Jan 19, 2015 at 13:39 | review | First posts | |||
| Jan 20, 2015 at 5:05 | |||||
| Jan 19, 2015 at 13:34 | history | asked | wena2k432 | CC BY-SA 3.0 |
