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| CarlFK | bunnie[m]: mithro xobs? netv2 - who picked out which micro-hdmi port to use? because I want to put on on a board and I'm wondering which part to pick | 01:34 |
|---|---|---|
| xobs | CarlFK: I'm going to guess it's a factory-selected part. Judging from the PDF notes. | 01:41 |
| * xobs uploaded an image: image.png (27KB) < https://matrix.org/_matrix/media/r0/download/matrix.org/wjVFCgGCDVVwuidfbUzaZpBv > | 01:41 | |
| xobs | I'm not finding much information on "KAWEEI" other than they exist, and I'm certainly not finding much on "CHDMI-DFMS-01-D" | 01:41 |
| xobs | But it definitely is a standard Molex footprint! For example, if I search that footprint, I get this: https://www.digikey.com/product-detail/en/molex/0467651301/WM11255CT-ND/5287247 | 01:42 |
| tpb | Title: 0467651301 Molex | Connectors, Interconnects | DigiKey (at www.digikey.com) | 01:42 |
| CarlFK | my goal is to make an adapter that fits in the phone cradle of a ... | 02:05 |
| CarlFK | motorola lapdoc cell phone thing.. that I can not find a part number on | 02:05 |
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| CarlFK | https://www.ebay.com/i/133315518635 AT&T Laptop Dock for Motorola ATRIX 4G OEM Box & Manual P/N 65242 | 03:01 |
| tpb | Title: AT Laptop Dock for Motorola ATRIX 4G OEM Box & Manual P/N 65242 NO AC Adapter | eBay (at www.ebay.com) | 03:01 |
| CarlFK | good pics. wish I could find something more 'official' | 03:01 |
| CarlFK | xobs: that part has 2 rows of pins 10 out the back, and 9 underneath. If I want quantity 10, what's the price of getting that fabbed ? | 03:17 |
| xobs | CarlFK: I'm not clear what you're looking for. You want a cable, a PCB, a laptop clamshell, or something else? | 04:04 |
| CarlFK | xobs: the goal is to use that as an hdmi monitor and a usb keyboard. I can buy cables with female ends: | 04:20 |
| CarlFK | https://www.ebay.com/i/174063573928 | 04:20 |
| tpb | Title: only hdmi & usb cables! for Motorola Droid RAZR MAXX HD etc to lapdock Atrix 4G | eBay (at www.ebay.com) | 04:20 |
| CarlFK | but I would rather have a little PCB that is just a gender changer - that I can zip tie or glue in place | 04:21 |
| xobs | So they use an HDMI-D plug and run power and USB over some of the unused pins? | 04:22 |
| CarlFK | or velcro ... so that I can remove it for packing | 04:22 |
| CarlFK | there is a power jack | 04:22 |
| CarlFK | the made an hdmi monitor with a male plug (to fit into a phone) | 04:22 |
| futarisIRCcloud | Ohh lapdocks? These are ok, but the screen is pretty average. | 04:26 |
| CarlFK | futarisIRCcloud: do you know what the res is? | 04:26 |
| futarisIRCcloud | http://nexdock.com/touch/ are a better newer option, if you don't mind spending slightly more. | 04:26 |
| tpb | Title: Touch | NexDock - Turn your Smartphone into a Laptop (at nexdock.com) | 04:26 |
| futarisIRCcloud | Atrix lapdock has a 1366 x 768 screen. 11.5" | 04:27 |
| CarlFK | "With the full size HDMI-in port" that's worth $100 | 04:27 |
| CarlFK | 1366 x 768 - so slightly bigger than 1280x720. - do you know if it it will upscale 720? | 04:28 |
| xobs | I backed (and eventually received!) https://www.sentio.com/ which sends the video data over USB (using DisplayLink), not HDMI. | 04:28 |
| CarlFK | my use case is conference recording - both Opsis display and i3 cpu desktop for video mixer | 04:29 |
| futarisIRCcloud | CarlFK: Not sure about the the upscaling. | 04:29 |
| futarisIRCcloud | Nexdock 2 and touch have both full HDMI input ports and USB-C. | 04:30 |
| xobs | CarlFK: to answer your original question -- 10 HDMI-D connectors are $18.49. You'll want HDMI connectors, which look to be about the same cost -- 10 for $18. USB-C is about $20 in qty 10. | 04:36 |
| CarlFK | xobs: mostly I am wondering how I'll get them soldered to a pc board | 04:37 |
| xobs | Basically, go to Digikey, search for connectors, and sort by "Quantity Available". | 04:37 |
| xobs | For example: https://www.digikey.com/products/en/connectors-interconnects/usb-dvi-hdmi-connectors/312?k=&pkeyword=&sv=0&pv28=418395&sf=0&FV=-8%7C312&quantity=&ColumnSort=-1000009&page=1&pageSize=25 | 04:37 |
| tpb | Title: USB, DVI, HDMI Connectors | Connectors, Interconnects | DigiKey (at www.digikey.com) | 04:37 |
| xobs | For these, hot air rework is your friend. As long as the board is tinned, you should be able to slather on flux, drop the part on, and apply heat. | 04:38 |
| CarlFK | did that a year ago, I now have a few of each. local guy said "how do you expect to solder that?" | 04:38 |
| CarlFK | ah. so I can do it myself | 04:38 |
| xobs | It's only three components, so I'd say so! | 04:38 |
| xobs | Super glue is also handy in these situations. | 04:38 |
| CarlFK | glue first? | 04:39 |
| futarisIRCcloud | https://www.adafruit.com/product/3119 or https://www.adafruit.com/product/3121 would probably work otherwise. | 04:40 |
| tpb | Title: HDMI Plug Breakout Board ID: 3119 - $3.50 : Adafruit Industries, Unique & fun DIY electronics and kits (at www.adafruit.com) | 04:40 |
| xobs | CarlFK: yes, tack it down with glue so the hot air doesn't blow it away. | 04:40 |
| xobs | Or kapton tape. | 04:41 |
| CarlFK | huh. I thought it needed to float around so the .. surface tension? would align the pins and pads | 04:42 |
| xobs | Depends on the size of the part. That's definitely what you want for big ICs. | 04:43 |
| xobs | I guess the super glue trick is more useful for tiny things like 0201 resistors. | 04:43 |
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| CarlFK | https://www.adafruit.com/product/3559 DIY HDMI Cable Parts - Straight Micro HDMI Socket | 05:35 |
| tpb | Title: DIY HDMI Cable Parts - Straight Micro HDMI Socket Adapter ID: 3559 - $6.50 : Adafruit Industries, Unique & fun DIY electronics and kits (at www.adafruit.com) | 05:35 |
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| CarlFK | $6.50 for one end hurts a little, but I can live with just one for now | 05:46 |
| bunnie[m] | <CarlFK "bunnie: mithro xobs? netv2 - wh"> The Kaweei is a china-domestic clone of that molex part. basically a cost-down substitution of the molex equivalent. | 08:31 |
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| CarlFK | bunnie[m]: got it. | 18:34 |
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