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Forum Index : Microcontroller and PC projects : CGMAXIMTE making it go??
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| paceman Guru  Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
We seem to be putting suggestions here that CG once requested for V2 of the COLORMAX - so here's some more to add to the others. All dead easy when you don't have to do it. 
- move J7 (mainly) and J14, 15 & 16 out from under the shield footprint. The clock chips and battery could go under the shield instead. -beef up the power supply a bit so that using shields and/or the proto area have more grunt available. - move the RS232/485 area in by a couple of grid points. It wouldn't matter to lose a bit of the proto area. - make an optional kit available with mini chassis switches for power select (with OFF posn), re-flashing button/switch and 3.5mm stereo audio socket. Include the PCB header pins and push-on leads and maybe also the female shield headers. I think I've found a couple more minor "typos" in the current Manual too. - Page 463: are the headings inside the brackets swapped for tables J10 and J12 - J8 is quoted but isn't marked on the board's silkscreen. Greg |
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CircuitGizmos Guru Joined: 08/09/2011 Location: United StatesPosts: 1425 |
J7 is stuck where it is, right next to the micro. Some people have added a pushbutton (via wires) and placed reset onto the enclosure. J16 is PIC reprogramming. Few people reprogram the PIC directly as you have to have a PICKIT/etc to do that. J14 and J15 have been moved out from under the shield. 5V can do 500mA for additional circuitry. The 3.3V on-board regulator can supply about 50mA for user circuits. That circuitry area has changed. It is now a circuit area that supports through-hole DIP RS232, RS485, and CAN interface chips. I'll consider that. Also considering an additional case. Tables J10 and J12 for the CGCOLORMAX1 are correct. The silk screen for the J8 label was lost. It has been returned to the CGCOLORMAX2 layout. Micromites and Maximites! - Beginning Maximite |
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| CircuitGizmos Guru Joined: 08/09/2011 Location: United StatesPosts: 1425 |
I already have the firmware load assembly available: http://www.circuitgizmos.com/products/cgbutton1/cgbutton1.sh tml And the connector kit: http://www.circuitgizmos.com/products/cgcmconn1/cgcmconn1.sh tml Micromites and Maximites! - Beginning Maximite |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Yes, I did that too on my V1 but if you use normal male pins a push-on lead fouls the shields. A solution might be to use right angle pins for the lead (they can be bent up a bit to access them easier), otherwise you're stuck with a soldered-in lead on the board. I did that on a couple of headers on Geoff's original Maximite because the box lid fouled the push-on leads. Re the connector "kit". I'd forgotten the header pieces and push-button on your site - sorry about that. It probably slipped my mind while I was waiting for the other bits from Futurlec! It's a pain sourcing the other switch and socket though if you're not close to a supplier, postage costs more than the parts - having them together would be handy. Re page 463 J10 & J12 table. Ah, OK - I was thinking you meant physical location for the "COLORMAX side" etc rather than the signal. Greg |
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| CircuitGizmos Guru Joined: 08/09/2011 Location: United StatesPosts: 1425 |
Oh, I see. Well that changes also on the CGCOLORMAX2. Thanks for the feedback! Micromites and Maximites! - Beginning Maximite |
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