HackerTrans
TopNewTrendsCommentsPastAskShowJobs

haddonist

no profile record

comments

haddonist
·2 months ago·discuss
https://shop.everythingsmart.io/products/everything-presence...

"Everything Presence Pro is our most advanced presence sensor ever, combining long-range static mmWave, tracking mmWave, PIR, PoE, Ethernet/WiFi connectivity, and optional CO₂ sensing (Sold separately) in a single, ultra-capable device"

USD$93.00

---

https://apolloautomation.com/products/r-pro-1?_pos=1&_sid=f8...

Apollo Automation "R PRO-1 PoE dual mmWave Multisensor (LD2450 | additional LD2412 optional)"

- Dual mmWave Compatibility: LD2412 and LD2450 - TR390 for ambient lux and UV sensing - Optional SCD40 for high-accuracy NDIR CO₂ sensing (extra $20)

USD$69.99

---

Also check out https://www.tindie.com/ - it's a site for small companies & individuals to sell tech-related stuff. A quick POE search turned up Radiation Dosimeters, Air quality meters, BLE gateways and more.
haddonist
·2 months ago·discuss
Might be worth contacting the seller before buying.

The "Color" (ie: type/what's being sold) is "PDF Manual By Email", so it's possible they selling just the PDF assembly manual...
haddonist
·4 months ago·discuss
Looks good, but it'll probably take a while until it's anywhere close to the coverage of existing repositories:

https://templates.blakadder.com/ has almost 3,000 devices flashable onto Tasmota firmware.

For older Tuya devices there's https://github.com/tuya-cloudcutter/tuya-cloudcutter

OpenBeken https://github.com/openshwprojects/OpenBK7231T_App covers 800 of the newer generation Tuya devices.

And there's a large community adapting ESP32 devices onto https://esphome.io/
haddonist
·5 months ago·discuss
You've invented a room-temperature superconducting material? No?

Didn't think so.

Currently available superconductors still need liquid nitrogen cooling, meaning they're not feasible for in-orbit installations.
haddonist
·8 months ago·discuss
One of the things Sal Mercogliano stressed is that the crew (and possibly other crews of the same line) modified systems in order to save time.

Rather than doing the process of purging high-sulphur fuel that can't be used in USA waters, they had it set so that some of the generators were fed from USA-approved fuel, resulting in redundancy & automatic failover being compromised.

It seems probable that the wire failure would not have caused catastrophic overall loss of power if the generators had been in the normal configuration.
haddonist
·11 months ago·discuss
Well There's Your Problem podcast, Episode 121: Therac-25

https://www.youtube.com/watch?v=7EQT1gVsE6I
haddonist
·3 years ago·discuss
Make It Work have reviewed 18 different home mmWave sensors, Aqara included:

"Best mmWave Presence Sensors for Home Assistant!" https://www.youtube.com/watch?v=Kt1FpRM8R18