| 9 Mar 2020 |
| 18:57:19 |  richard.st-pierre | Thanks for the script, Will try it soon.I can add more coax, how much delay would you like to add.? |
| 19:15:05 |  kelu | Nope, actually the receiving line of the piezo is weird to me, with this dip.. I can't find why this happens. It seems you have no echo before. Really strange. |
| 19:15:19 | kelu | I was wondering if you were already using one. |
| 10 Mar 2020 |
| 13:37:16 | richard.st-pierre | Only seeing one pulse (still) at 320ns, with new script (10 lines). |
| 13:54:26 | kelu | Weird. Can you share the JSON that came from this acquisition? |
| 13:54:48 | kelu | Have you updated both files, and used the "-f file" option too ? |
| 14:00:27 | richard.st-pierre | The pulser output waveform is directly into o'scope. Do you want JSON with probe attached? |
| 14:08:12 | kelu | With and without please, if you can. |
| 14:09:02 | kelu | normally, there should be 10 pulses spaced by 2.5ms ( with the 'interline' parameter delay) |
| 14:09:15 | kelu | so you should see 10 pulses |
| 14:22:35 | richard.st-pierre | **-1.json is output into o'scope only. **-2.json is with probe attached into water. Both running 10 line script. console log shown in 10lines file. |
| 14:24:24 | kelu | Cool. Did you see the 10 pulses while on the scope ? |
| 14:34:30 | richard.st-pierre | No- single pulse over 10ms observation window |
| 14:36:52 | richard.st-pierre | Single Seq trig, singe pulse in 10ms |
| 19:24:58 | kelu | I trust I found the glitch, old-er version of the single file lib.
Attached are the pyUn0 lib, and the experiment file. I ran
python2.7 pyUn0 -f 10lines.exp.md
followed by
python2.7 pyUn0 process
which yielded the attached pictures. |
| 19:25:17 | kelu | The two files |
| 19:25:30 | kelu | The images. |
| 19:26:21 | kelu | With a line, and the different pulses (one per line) |
| 18 Mar 2020 |
| 15:40:29 | kelu | Hey @room - hope you're all doing fine. Take care, don't take unnecessary risks ! |
| 17:27:07 |  wlmeng11 | Likewise! Hope everyone stays safe and healthy. |
| 19 Mar 2020 |
| 11:21:36 |  jarija | Locked up at home from Saturday... Hope all of you are healthy too... |
| 21 Mar 2020 |
| 20:07:11 | kelu | Strangely enough, I've been trying this piece of code on a RPi4, I'm not getting multiline. Will open an issue on github here.
Weird, it seems it does not recognize the command, and the blinky does not work there.
However, when using a PiZero, it works.
I'm confused - might be worth checking software side. |
| 20:07:28 | kelu | if you have any ideas 8Z3VB1T2 F90LJWTH KA33T8N9 I'm all ears. |
| 22 Mar 2020 |
| 03:36:26 | wlmeng11 | Are they running the same OS version? If not, maybe an issue with python version or libraries? Otherwise, maybe an issue with 64 vs 32 bit? |
| 09:12:15 | kelu | Nope, normally different OSes as well, and might be well 64 vs 32 bits. What's weird is that the multiline argument seems not to work: can get the test_spi function to work properly.
Adding to issues. |
| 09:12:50 | kelu | As a side note, I tested different pulse widths ( https://github.com/kelu124/echomods/tree/master/matty/20200321a ) interesting results, changes in phase and amplitude of echoes 😃 |
| 28 Mar 2020 |
| 23:16:18 | wlmeng11 | Love the new graph style 🙂 |
| 29 Mar 2020 |
| 08:31:33 | kelu | got into using plotply |
| 08:31:47 | kelu | quite great to explore details ! |
| 18:31:47 | kelu | 8Z3VB1T2 demo at http://192.168.1.83:8501/ 😉 |
