| 4 Mar 2025 |
Lyn (they/she) | In reply to @hexa:lossy.network mqtt in yaml was removed yeah :( | 01:12:05 |
kdn | So... I'm getting a bunch of PWM 8x controllable fans for my RACK, is there a way to control those using raspberry pi and power from AC? | 11:18:45 |
K900 | Well you'd need to get 12V or 5V or whatever the fans run at off the wall | 11:19:44 |
K900 | And then in most cases you can just shove a PWM signal from the RPi into the fans | 11:20:00 |
kdn | I'm not sure what kind of device(s) should I get | 11:20:05 |
K900 | Most fans are perfectly fine with basically any level of PWM signal | 11:20:28 |
K900 | A device for what? | 11:20:38 |
kdn | to join those 8 together, power and adjust their speeds | 11:20:55 |
kdn | preferably in 2 groups of 4 | 11:21:06 |
K900 | Are they daisy chainable? | 11:21:57 |
K900 | Can you link the fan model, actually? | 11:22:05 |
kdn | https://www.arctic.de/en/P14-PWM-PST-CO/ACFAN00126A | 11:22:12 |
kdn | i see mostly 2.5A LED power supplies for PWM | 11:23:47 |
K900 | Yeah those daisy chain | 11:23:53 |
K900 | And are 12V | 11:24:16 |
K900 | So if you can get a 12V source, you can jank something together pretty easily | 11:24:30 |
K900 | You basically just run 12V to the power pins | 11:25:23 |
K900 | And then a PWM signal from an RPi or whatever to the PWM pin | 11:25:44 |
K900 | But also if any of your machines have a 4-pin fan header | 11:26:02 |
K900 | Which is very likely as those things are bog standard | 11:26:09 |
K900 | You should probably just use that | 11:26:16 |
kdn | they definitely do | 11:26:22 |
kdn | so plug directly into some mobos in 2 daisy chain groups instead of getting any extra equipment? | 11:26:58 |
K900 | Yes | 11:27:41 |
K900 | Why have extra hardware | 11:27:53 |
K900 | If you can not have extra hardware | 11:27:57 |
| 5 Mar 2025 |
@hexa:lossy.network |  Download image.png | 10:09:20 |
@hexa:lossy.network | 2025.3.0 today | 10:09:24 |
Sandro 🐧 | But does that even Matter? 😏 | 15:48:10 |
@hexa:lossy.network | not for me | 18:12:23 |