I like doing these early mock-up’s of PCB’s and adjust schematics because they tell me what I can achieve with pins and space. This is the new RPI Hub I am working on. The details will change, but it looks doable.
- 2 x RS485
- 2 x RS232
- 1 x TTL UART (consume a RS232 port if used)
- Terminal switches for RS485/CAN
- 2 x CAN
- 1 x Serial Flash
- 1 x USB
- GPIO Expansion Ports
- Super-Cap or Battery for RTC
- External power connector
- 1 x SPI port
- 1 x I2C port
- Micro-SD Card (MMC).
- RPI 2/3 Header
The Hat is in the format of a Raspberry PI Hat. The Hat can be used stand-alone powever by USB (or external), or as a Raspberry PI Hat. As mentioned this is an early mock-up so the actual PCB will change. It will probably take me another week before I order this, so I expect to have
I am also trying rounded corners this time, lets see how that goes. As for usage – this is basically a add-on module for a mobile control system that can operate stand-alone, in a bus or at the back of a Raspberry PI 3A+ or Raspberry PI 3B+ etc.