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Forum Index : Microcontroller and PC projects : VGA socket
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stanleyella Guru  Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
oops. If you want to use vga then you'll find the vga socket is not strip board friendly so any thoughts the pcb designers to make a board to accept vga socket and maybe resistors and 7 pin to plug in picomite board. you can buy breakout boards but no. This is faulty but you can see the messy wiring.  |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6787 |
No problem. Watch this space. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| cosmic frog Senior Member  Joined: 09/02/2012 Location: United KingdomPosts: 284 |
I use a staded chassis mount VGA socket and make a bracket out of angle aluminium.  |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
Ask if this would be useful, using vga needs a socket, how do people use one? strip old graphics cards for wired vga? something to replace this mess  |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6787 |
Any use? Takes two alternative VGA sockets.  New version already. :) Plugs straight into the breadboard by the Pico.  Edited 2024-02-19 05:07 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
Why 2 vga? First one with one vga would be ideal but with the wiring of the second to use standard vga in the manual pins. nice one |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6787 |
The pads are for two different VGA sockets. Many of them are the larger size, but some people might have the compact size available. I prefer that one but it's not easy to find in the UK and I had to get some from China. You can't install both at once. :) My personal preference would be for the second version with the compact socket. It's less to have overhanging the breadboard and there are no wires needed at all. Another possibility is to include GP8 and GP9 on the same board, together with a USB-C to TTL adapter, which could also power the breadboard at 5V (or even 3V3 if you limit it to less than 100mA). :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
Hi Mick, in the manual 1/2 green is 820R, you use 680R. there about is ok? I bought a vga breakout plug but could have just cut a vga lead and soldered the end to the board.  |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6787 |
Nothing is critical. 820R is correct and my brain isn't. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
Mick, I use "vero" and poo poo it for high freq capacitance or whatever. it's handy and not that bad really in reality if you want to solder a bit more permanent than strip board test. vga is one of those that are not vero pin friendly but do the ground got to be connected? otherwise not many leads to bend into 8 holes/strips. sorry. you are a pcb guy |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
For short VGA leads a single ground wire works ok. For very long leads a separate ground for each colour is needed as they are co-axial, and one for sync. Some have another ground for the data signal (not used on the Pico). |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
phil99, one ground not join the vga plug grounds. bend the other pins to vero maybe? 18"vga lead would be fine |
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| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
My PicoMiteVGA is also on strip board. As the Pico only uses the centre (offset) row for ground I used a Dremel to cut a slot in the board for those pins. The last pin of the centre row (the one that sticks out from the other two rows) is then bent a little to solder to the adjacent track. Viewed from the top side. Reverse for the track-side view.  You could also make the slot by drilling out the centre row of holes to a larger size then tilt the drill left and right to join the holes. Edited 2024-02-20 10:46 by phil99 |
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| cosmic frog Senior Member Joined: 09/02/2012 Location: United KingdomPosts: 284 |
I quite like this idea, I wonder if header pins could be fitted to the VGA sockets top and bottom row and a header socket (female) could then be fitted to the Vero board, that way the "slot" would not be needed as the VGA socket would be raised above the board. Maybe? The ground pin would still be a problem though. Dave. Edited 2024-02-21 03:03 by cosmic frog |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6787 |
I dunno.... I design a lovely little PCB to put you all out of your collective misery and nobody wants one.... ;) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
It's everyone wants a solution. boards on ebay. it's getting all the bits and a pcb is permanent. I only wanted one vga picomite for now and the vga wiring I thought fault just needed the securing bolts on the vga screwed or bad connection. I bent the pins on the usb to ttl and mounted it upside down and soldered the audio filter. bit nore solid than strip board.  |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6787 |
So what's wrong with having a piece of test gear permanent? You don't have to put male pins on it anyway - the holes are on 0,1" centres so line up with veroboard. You could have a couple of fixing holes if you like. A set of 5 identical 100mmx100mm PCBs costs about £3.80 including postage to the UK IIRC. As they are all the same design, compare that with the cost of a piece of fibreglass stripboard 100x100mm including postage. You can easily get four of those VGA boards out of a single 100mm x 100mm piece, so that would be 20 of them for less than four quid. Soldering them in is realistic. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2129 |
Hi Mick. I just used vga from old pc cards. If I had a vga socket with right angle leads then you only need 6 pins so cut the excess and bend the others. I'll look up vga socket types and price. I screwed 2 self tappers through the vero into the vga and used araldite. bodge but solid. I'll have 5 boards £3.80. tell me how please. regards stan |
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