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jim

RS232 Board, RaPi B+

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We currently make use of Raspberry Pi with your RS232 shields in a few of our products and this is likely to continue for at least another year. However, recently we have been encountering an issue. The new model of Raspberry Pi, the B+, has solved a few problems for us and so we have moved over to using it going forward. However, your shield made use of the old Raspberry Pi “mounting holes” to help physically secure the shield. These holes are no longer present on the B+. It is simply not an option for us to not have some kind of physical bracing of your shield.

 

I have examined this problem from a few different angles and attempted to 3D print some braces that might work but in the end, I fell that the best solution is for the board to be redesigned in order to take advantage of the Raspberry Pi’s new mounting holes. This can be achieved by extending your board about 7.3mm on the DB9 connector side of the board and adding at least one mounting hole in the corner that would be near the USB power connector on the Pi. I believe that just one hole there, where a standoff can be used between the Pi and your shield should be sufficient for our purposes.

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Is there also going to be a redesign so that the JTC connectors breakout the gpio pins even more? In the kit if you use the JTC cables it only gives you access to one set of ADc inputsorGPIO so you can only use one input per cable. If you could break out the connectors more that would be more helpful! :) So instead of having A0 and A1 in same connector A0 has own connector and A1 has own connector.

 

Also redesigning certain linkerkit modules to be 3.3vdc compliant would help too, especially the relay boards! :)

 

Since the PI 2 now has expanded GPIO pins what if you also create the board and build switch inputs into the board that also protected by optocoupler or something like that? Rather than create extra circuits off the board to handle switches it would be a benefit to be able to tie the switches into the adc/gpio board itself. 

 

How about heavy duty 3amp PI power supply? No one makes anything with a microusb cable that is reliable and consistent.

 

Or maybe make microusb adapter cable so we can use a rugged powersupply and still power the pi through the usb connector?

 

How about making an 8 channel ADC board as well? Only 4 channels get used up fast especially if you have a high noise device and wish to leave an ADC input tied to ground in order to get a more accurate reading.

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