ABSIS NANO 2.0 #268
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ABSIS NANO 2.0 #268
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-Updated Schematic with 10k Pullup Resistors for all Switches -Updated Schematic, changed to 10K Pullup resistor on SCL, SDA, and INT -Updated PCB with Pull-up Resistors for Switches
Added Pullup Resistros to AMPCD
Fixed missing connections
Ddi button board pullup resistors
This is an ABSIS Bus Master which utilizes a 4-pin power in from the pit PSU, and 3x MAX487 chips to drive three RS485 buses. The data and power buses have been combined into a six pin bus. This PCB is a shield for an Arduino Mega 2560 R3.
Created ABSIS Nano 2.0 template Adjusted ECAD files structure Added ABSIS Nano 2.0 project
jrsteensen
added
Category: ECAD
TODOABSIS Nano
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Change schematic BUS Connectors to match PCB order. (Cosmetic change.) Consider if fusing is required. - Fusing not required due to protected PSU output to bus. Add power planes. - Added 12V plane on back plane. Fix adjacent pin bridges. (Move out from direct bridge to "U" bridge.) Add silkscreen box to write reference designator on the PCB
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Description
The ABSIS Nano 2.0 is a small RS485 slave device, capable of driving 11 Digital I/O (with 5 PWM pins available) and 8 analog inputs. Additionally, it has an 4-pin accessory power connector. (12V, 5V, 3.3V, GND) These are condensed into maximum density pin headers, with the intent to daisy chain 5V and GND/Common as required on the panel side wiring connections. At each end of the PCB, there is a standard ABSIS BUS connector, and 4X #4/3.5mm compatible mounting holes.
Type of change
Please delete options that are not relevant.
How Has This Been Tested?
PCB Has not been physically tested, however it does pass all DRC requirements.
Checklist:
PCB/ECAD: