Timeline for Adafruit_LEDBackpack library interfering with analog input reading
Current License: CC BY-SA 4.0
31 events
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| Jun 6 at 0:07 | 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 5 at 23:03 | 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 8, 2024 at 22:05 | 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 10, 2024 at 22:03 | 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. | |
| Feb 11, 2024 at 21:08 | 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 14, 2023 at 20:06 | 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 16, 2023 at 20:04 | 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. | |
| Feb 16, 2023 at 19:04 | 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. | |
| Jan 17, 2023 at 18:58 | answer | added | Gil | timeline score: 1 | |
| S Nov 6, 2020 at 22:04 | history | bounty ended | Community Bot | ||
| S Nov 6, 2020 at 22:04 | history | notice removed | Community Bot | ||
| Nov 5, 2020 at 14:54 | comment | added | st2000 | Add up all the current needed to run your project. Double the number. That's the amperage you should use as a minimum for your power supply. Guessing, say there are 24 LEDs at 3mA each. That's about 100mA? Add another 50mA for the Arduino Uno and another 50mA for the microphone? Totaled that's about 200mA? So you're power supply should be rated for at least 1/2 Amp. And you should double that if going through the analog Arduino regulator. BTW, USB power sources are only supposed to hand out 500mA. Beyond that they are allowed to drop voltage. That's a lot of guess work. Just try a big PS. | |
| Nov 4, 2020 at 15:56 | comment | added | Gerben |
You get 1023, what? The value of analogRead? The value of Peak-to-peak? I'd try using a different analog pin for the microphone. Also add a small delay after bar.writeDisplay();. Lastly; I'd try providing the microphone board with it's own power wires, instead of getting it from the bar-graph module.
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| Oct 30, 2020 at 10:06 | comment | added | ocrdu | Does bending the micophone signal wire well away from the I2C wires make any difference? | |
| Oct 30, 2020 at 6:00 | history | tweeted | twitter.com/StackArduino/status/1322055656464154625 | ||
| Oct 30, 2020 at 4:27 | comment | added | xbox gamer | I found something similar esp32.com/viewtopic.php?t=2794 | |
| Oct 29, 2020 at 20:55 | comment | added | ocrdu | Does the supply voltage to the microphone and/or the microcontroller drop when the LEDs are on? | |
| S Oct 29, 2020 at 20:33 | history | bounty started | OneCleverMonkey | ||
| S Oct 29, 2020 at 20:33 | history | notice added | OneCleverMonkey | Draw attention | |
| Oct 28, 2020 at 2:29 | history | edited | OneCleverMonkey | CC BY-SA 4.0 |
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| Oct 27, 2020 at 23:43 | history | edited | OneCleverMonkey | CC BY-SA 4.0 |
added 332 characters in body
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| Oct 27, 2020 at 20:19 | comment | added | Majenko | No, that all looks fine to me. | |
| Oct 27, 2020 at 20:07 | comment | added | OneCleverMonkey | Do I maybe need a resistor somewhere? | |
| Oct 27, 2020 at 19:58 | history | edited | OneCleverMonkey | CC BY-SA 4.0 |
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| Oct 27, 2020 at 19:51 | comment | added | Majenko | Can you post a photo of your breadboard setup? | |
| Oct 27, 2020 at 19:51 | comment | added | Majenko | Ah, I missed that bit. My bad. | |
| Oct 27, 2020 at 19:51 | comment | added | OneCleverMonkey | I may have been too quick to say it wasn't a wiring problem. I also don't get the issue if I leave that line in the code and remove the led backpack from the breadboard. Perhaps the LED backpack is the issue. Maybe I messed up the soldering or maybe I got a bad board. | |
| Oct 27, 2020 at 19:50 | comment | added | OneCleverMonkey | As I said, that's what I've already done. If I comment out just that one line, I get normal readings. If I leave that one line in, I get 1023. | |
| Oct 27, 2020 at 19:24 | comment | added | Majenko | step one: comment out everything to do with the LED backback and see if it still gives 1023. | |
| Oct 27, 2020 at 19:17 | review | First posts | |||
| Oct 29, 2020 at 9:24 | |||||
| Oct 27, 2020 at 19:13 | history | asked | OneCleverMonkey | CC BY-SA 4.0 |