| 14 Dec 2023 |
 mhough | https://www.metacareers.com/jobs/283716714648177/ | 14:23:53 |
| 15 Dec 2023 |
| mhough | https://www.biomechatronics.ca/opening/ | 15:24:13 |
| 19 Dec 2023 |
 kelu | Through body acoustic haha :) couple this with bone conduction ^^ | 08:09:27 |
| 13 Jan 2024 |
| mhough | https://ieeexplore.ieee.org/document/10384850 | 04:38:09 |
| mhough | Did you see the openwater.health announcements? | 04:38:52 |
| 16 Jan 2024 |
| kelu | Nop 6E49CNV6. Thanks for sharing this! | 09:34:21 |
| kelu | BTW echOpen got its CE marking 😃
https://www-aphp-fr.translate.goog/contenu/echopen-start-issue-de-lap-hp-obtient-le-marqua[…]able?_x_tr_sl=fr&_x_tr_tl=en&_x_tr_hl=fr&_x_tr_pto=wapp | 09:34:33 |
| kelu | The links to presentations in https://www.openwater.health/copy-of-technology go 404 | 09:35:40 |
| mhough | That’s great! | 17:30:38 |
| mhough | Yeah not sure why that was but they seem to have it fixed now | 17:32:15 |
| 23 Jan 2024 |
 lewismcfadyen | Great job on that 5M5PLH9S ! | 01:32:32 |
| 17 Feb 2024 |
|  @ronaldo:tomesh.net left the room. | 05:03:20 |
| 26 Mar 2024 |
| mhough | https://spectrum.ieee.org/mems-ultrasound-history | 00:55:56 |
| 10 Apr 2024 |
| kelu | And .. now with a small rp2040 https://github.com/kelu124/pic0rick/ 😉 | 21:06:49 |
| 19 Apr 2024 |
| mhough | If you would like to join the Openwater Discord server here’s the invite link https://discord.gg/NnEka8qf | 14:44:59 |
| mhough | https://www.openwater.health | 14:45:07 |
| mhough | All their hardware is open source now | 14:47:26 |
| 22 Apr 2024 |
 kristofgladinez | I was thinking/working on a comparable setup (rp2040+ 10bit ADC on PIO).
Do you require or want input/feedback/...? | 20:09:01 |
| 23 Apr 2024 |
| kelu | Its now working :) | 04:36:57 |
| kristofgladinez | How is performance compared to the ICE40? (in terms of data throughput) | 08:21:38 |
| kelu | Acquisition: I'm limited by the ADC I've chosen, and I'm now at 60msps. Export of data is through the UART so quite slow.
I'm investigating right now the possibility to have a USB3 output so that I could export "in real time" fast acquisitions. | 10:11:11 |
| kelu | This is the board, with pico, TGC+ADC, and separate board for modular pulser, and on top of the pulser a +-24V source to allow bipolar pulses | 10:12:04 |
| kelu | it's a prototype so I've kept large passives, obviously could be smalelr | 10:12:28 |
| 24 Apr 2024 |
|  lennart joined the room. | 07:44:19 |
| lennart | > the possibility to have a USB3 output
Do you actually mean USB3 (as in Super Speed) or USB2 (High Speed)? | 07:44:19 |
| kelu | USB3 (3.2 Gbps) and not USB2 (480Mbps) -> signals acquired at 60Msps on 2byte words means transfers at 960Mbps. Not possible with USB2 and possible with USB3. | 08:42:11 |
| kelu | (gross rough figures of course, not accounting for host bottlenecks and overheads) | 08:42:39 |
| lennart | Ok cool | 08:45:20 |
| kelu | And that means a bit of r&d, but if the usual suspect of a FPGA moving stuff around could be replaced by a rp2040.. that'd be huge | 08:48:59 |
| kelu | (a bit limited by time and resources though at the moment, if you know of any good sponsor 😉 ) | 08:49:21 |
