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Forum Index : Microcontroller and PC projects : Pico Computer 2B HDMIUSB board question....
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9945 |
Hi - this board is brilliant, and includes its own USB controller chip, and the unit supports USB keyboards and mice at MMBASIC level. As this board uses a dedicated USB interface chip, does that mean it will work/detect a keyboard/mouse combo set thing? You know - the kits that consist of a keyboard and a mouse, and ONE single USB dongle that works with both the keyboard AND the mouse. Do these(or are these) expected to work via the USB controller chip, or do I still need to use discrete USB devices - a separate keyboard and a separate mouse, on two of the USB sockets? Smoke makes things work. When the smoke gets out, it stops! |
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phil99 Guru  Joined: 11/02/2018 Location: AustraliaPosts: 3179 |
I have a couple, one is an old Logitech version of that but it requires its own driver, Windows only. Don't use it any more, too unreliable, missed keystrokes and mouse pointer jumps unpredictably. An even older Microsoft one is worse. Wires just work! |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9945 |
Gotcha, sounds about right. I will use separate wired USB keyboard and wired USB mouse. Both are Raspberry PI branded, so they should work as they are talking to a RP processor! Well, not STRICTLY, as the USB controller sits in the middle, but...... Separate units it is then. I was only asking, as I was about to buy a combo thing-y, but now I won't take the risk. Smoke makes things work. When the smoke gets out, it stops! |
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| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 3179 |
Others may have better experience with newer ones that they could recommend. |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8800 |
I doubt if a simple USB stack will handle those dongles. The USB stack is running on the Pico, not the interface chip. That is merely a USB hub. *if* the USB stack on the Pico can be persuaded to see the combined keyboard/mouse as a USB hub with two connected devices then it might work, but I don't know if those dongles work like that. You are reaching the limit of two hubs on the Pico. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9945 |
Understood. Basically, the same as the CMM2G2 - no multi-USB thing-y's supported. Gotcha.  Smoke makes things work. When the smoke gets out, it stops! |
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