Difference between revisions of "Change: Interface PCB"
(Created page with "These are to tide us over until we get our board designed.") |
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| − | + | [[File:P1010016c.jpg|thumb|740px|Dev Kit PCB installed on a Pi 2.]] | |
| + | ==Background== | ||
| + | A Printed Circuit Board (PCB) has been designed and manufactured. | ||
| + | The goals were to make it quicker and easier to build a system and to make it more reliable, to establish a relationship with a board house and to test the layout of the RJ connectors and mating with the Pi. This is an interim solution - a step towards the goal of a complete turnkey system. | ||
| + | |||
| + | *All sensor plug in. | ||
| + | *12 VDC power supply with battery voltage monitoring | ||
| + | |||
| + | ==Problems== | ||
| + | |||
| + | ADC is only one channel. | ||
| + | No RTC | ||
| + | Board does not meet Pi HAT spec | ||
| + | |||
| + | ==Proposed change== | ||
| + | |||
| + | Split this board in two. | ||
| + | |||
| + | *One board will meet the Pi HAT specifications and contain: | ||
| + | #at least one 4 channel ADC so each load cell will be individually measured instead of being summed. | ||
| + | #Real Time Clock with battery backup. | ||
| + | #Configuration ROM | ||
| + | |||
| + | |||
| + | *One board will have all the connectors installed in a bulkhead configuration. | ||
Revision as of 18:48, 7 December 2015
Background
A Printed Circuit Board (PCB) has been designed and manufactured. The goals were to make it quicker and easier to build a system and to make it more reliable, to establish a relationship with a board house and to test the layout of the RJ connectors and mating with the Pi. This is an interim solution - a step towards the goal of a complete turnkey system.
- All sensor plug in.
- 12 VDC power supply with battery voltage monitoring
Problems
ADC is only one channel. No RTC Board does not meet Pi HAT spec
Proposed change
Split this board in two.
- One board will meet the Pi HAT specifications and contain:
- at least one 4 channel ADC so each load cell will be individually measured instead of being summed.
- Real Time Clock with battery backup.
- Configuration ROM
- One board will have all the connectors installed in a bulkhead configuration.
