Timeline for Water level switches / reed switches and Arduino Uno
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 14, 2021 at 9:05 | 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 24, 2021 at 6:00 | history | tweeted | twitter.com/StackArduino/status/1407941591587823616 | ||
| Jun 14, 2021 at 8:16 | answer | added | Investigator | timeline score: 1 | |
| Jun 8, 2021 at 5:32 | review | Close votes | |||
| Jun 24, 2021 at 3:03 | |||||
| Jun 7, 2021 at 20:38 | comment | added | Investigator | I liked the idea of using opto coupler isolation. First of all I have to put the cables in an order. For instance a separate twisted pair per switch and put them far away from the high voltage cables. | |
| Jun 7, 2021 at 20:20 | comment | added | Investigator | Yes indeed I forgot to write that I used 10 k pull up resistors and I do not use the Arduino internal. Maybe I should try the 1 K. Something else that may be relevant while I was reading the article is the fact that all buttons use the same ground cable. Maybe each one should have each own twisted and only at the end I should connect all ground together. | |
| Jun 7, 2021 at 20:09 | comment | added | Dave Newton | How are they connected? You might want to check out arduino.stackexchange.com/q/13072/8583 and similar; 5m isn't far-far, but it's far enough. | |
| Jun 7, 2021 at 20:03 | comment | added | Investigator | Yes I am trying to find out why under some conditions the sensor does not trigger the Arduino. It is one in the hundreds but it happens often if you think that the sensor is triggered twice every five minutes continuously. The distance is under five metres. I will soon move the power cables away from the signal cables. Right now they are a bit close. | |
| Jun 7, 2021 at 20:01 | comment | added | Majenko | You can use up to (N/2)² switches where N is the number of IO pins you have. | |
| Jun 7, 2021 at 19:59 | comment | added | Dave Newton | Count the number of digital-capable IO pins :) It's unclear what problem you're thinking you'll run in to. Are the switches, for example, really far away? | |
| S Jun 7, 2021 at 19:58 | history | suggested | Dave Newton |
"float" means something different here.
|
|
| Jun 7, 2021 at 19:57 | review | Suggested edits | |||
| S Jun 7, 2021 at 19:58 | |||||
| Jun 7, 2021 at 19:56 | history | asked | Investigator | CC BY-SA 4.0 |