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Forum Index : Microcontroller and PC projects : $5AU Raspberry Pi Pico
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bigmik Guru  Joined: 20/06/2011 Location: AustraliaPosts: 2914 |
Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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| bigmik Guru Joined: 20/06/2011 Location: AustraliaPosts: 2914 |
I don’t know why but I posted a blank message Anyway GDay All, I just saw this post for $5AU Pico’s. Postage $8 or free over $50. Cheapest I have seen $5 Pico Regards, Mick (The big one) . Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Silly question, does PicoMite run on the smaller Pi RP2040-Zero board? Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 857 |
Just received:  |
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Chopperp Guru Joined: 03/01/2018 Location: AustraliaPosts: 1057 |
Good find Mick. Interesting range of goodies sold as well Brian ChopperP |
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Geoffg Guru Joined: 06/06/2011 Location: AustraliaPosts: 3194 |
Yes, it runs on anything with a RP2040 chip and because the firmware recognises the logical pin designations (ie, GP15, etc) it can access all I/O pins. Geoff Edited 2024-06-30 16:51 by Geoffg Geoff Graham - http://geoffg.net |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6783 |
MMBasic runs beautifully on all the Chinese clone boards that I've tried so far, including the lovely little RP2040-Zero, which has become one of my favourites. :) To use pins that are normally reserved by MMBasic (e.g. GP23 and GP29) use OPTION PICO OFF then you can use them for anything that the RP2040 Datasheet specifies. The module shown by PhenixRising looks like the YD-RP2040 under another name. This may not run at over 252MHz but that's fine for VGA. I have a few of them and they are great. :) (This is why you should *always* use GP numbers in your programs. It makes your programs portable. Don't reference module pin numbers directly unless you have no choice, in which case use plenty of comments.) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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Martin H. Guru Joined: 04/06/2022 Location: GermanyPosts: 1113 |
This would be a nice Choise:  I'm thinking about ordering a few and running my 3D MonsterMaze version for VT100 there :-) so as "Monster on a Sick" Have a nice Sunday Martin 'no comment |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6783 |
That's one that *might* not be fully compatible. It depends on what they did with the USB. A schematic is needed. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3150 |
For instance: RP2040 Compute Module And a number of other designs by Mick. I've wired one up to a micro SD module with flying leads. Very capable little module. I have an EasyEDA design for which I should be receiving the PCBs from JLCPCB within the next week or so:  PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 857 |
Hi Mick, this is my second batch of 10. No problems with 378MHz I believe that I also successfully tested 420MHz.  |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6783 |
Perhaps they've finally run out of the cheap and slower flash chips. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| v.lenzer Regular Member  Joined: 04/05/2024 Location: GermanyPosts: 49 |
I also love this little controller and have already done a few small projects with it. I will carefully try overclocking for my data logger. Best wishes! Joachim |
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| v.lenzer Regular Member Joined: 04/05/2024 Location: GermanyPosts: 49 |
Today I tested my data logger at 378 MHz. The Zero is getting noticeably warmer. But it hasn't done any damage. I can now measure pulses with a length of 48 usec or more. Previously it was 117 usec at 133 MHz. That is a significant improvement. Best wishes! Joachim |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6783 |
You know when it's too warm. When you touch it the manufacturers logo gets burned onto your fingertip. :) It'll almost certainly be fine at 378MHz. Just don't enclose it in a small fleece-lined, unventilated box when the ambient is over 40C. It might get a bit unreliable. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4223 |
Joachim, For measuring short pulses (digital), us the PIO. Measure down up to 0.02 us at 133MHz. You could try my logic analyzer (search te forum, find last post with most recent code) for PicoMite VGA. PicoMite LA The user manual for it User manual Volhout Edited 2024-07-04 01:15 by Volhout PicomiteVGA PETSCII ROBOTS |
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Rickard5 Guru Joined: 31/03/2022 Location: United StatesPosts: 463 |
@ Mick, Not to Gloat or Nothing but when the Pi Pico first came out Microcenter had them for $2 Limit 2, So I'd go in every morning on the way to a client's and get my limit 2. then at lunch I'd walk across the parking lot and get my Limit 2, then on the way home I'd Stop and get my limit 2. and when they were out I'd get my Rainchecks. Then low and behold I go in one day and pay $5 each still limit 2, but I notice they must have just got a shipment in and I got like 80 something Rainchecks, so by the time all was Said and done I collected more than 150 of them and I've used tons of them ;) and the PFY (pimply Faced Youth) tried to tell me I can't do that, but the Microcenter Mgr. Knows me from the DOA Laptop incident, that ended up costing them! so I got my picos in one shot I also did this same thing with Pi 0 and Pi 0W when they first came out.:)  I may be Vulgar, but , while I'm poor, I'm Industrious, Honest, and trustworthy! I Know my Place |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6783 |
Worra lorra Picos. lol I haven't got many in actual projects. Almost all of them are plugged into various experimental systems and get re-used. I have a mix of genuine ones, YD-RP2040 and RP2040-Zero though, and I've just ordered some more of the latter from AE. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| v.lenzer Regular Member Joined: 04/05/2024 Location: GermanyPosts: 49 |
Thank you very much! I'm excited! Let's see if I can port the source to my Zero. I would like to output it on a TFT display. Would that work? I'll study the source. More information on the original thread. Best wishes! Joachim |
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Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9306 |
With all the talk of overclocking, some members might be amused to hear that I set my 2040 chips in my call-point designs to the slowest possible speed, which I think is 48MHz from memory. Speed isn't important when all it is doing is monitoring some buttons, the battery voltage and the presence of the DC supply, and transmitting via an HC12 at 1200 baud!   The slowest 2040 clock speed, also means the minimum of current consumption during any period where the unit has to work from the backup battery if the mains power fails, so the backup battery lasts much longer then running the 2040 even at it's default speed. I'd love to be able to slow it down even more, but I guess 48MHz is "As slow as you can go!"  Smoke makes things work. When the smoke gets out, it stops! |
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