OpenCoral TipTop All-in-One and Top-off Controller

The TipTop is the first major components in the OpenCoral system.

1. Monitor water levels using up to 4 external float switches or solid-state optical sensors.
2. Monitor temperature with 2 thermistor inputs.
3. Control up to three pumps or other AC devices using an integrated switched AC outlet based upon user programmable sensor and time states. Uses a soft-turn on Triac based switch for minimal pump wear and no-moving-parts reliability.
4. Report its operation, and allow override commands to be send over the OCnet interface.
5. Can also be used as a dosing controller or other digital input stand-alone controller.

1. Schematic Capture In Progress
2. See attached PDF. aqlogic_topoff.pdf
3. PCB Layout In progress
4. First prototype PCBs In progress
5. Prototype validation Waiting

1. Conception and tooling Complete
2. Initial prototype In progress

• No moving parts, when used with optical level sensors.
• Microcontroller: STM32 Cortex-M3 (STM32106). 32KB Flash, 10KB SRAM.
• OCnet: Two 6P4C RJ11 CAN interfaces, with termination and 5V bus powering modes.
• Power: Self-contained isolated sealed transformer. Linear regulation of 5V and 3.3V buses.
• Input:
  • 4 x 5VDC digital inputs, with 5V power provided.
  • 2 x Thermistor input

* Output: Two optically isolated 120V/240V Triac-switched outputs, with soft-start mode (zero-crossing on-detect opto-isolators are used). 6A current capacity per outlet.

• Configuration and firmware loading: RS232 interface. On-PCB reprogram button to switch startup modes.
• Board designed around the Polycase DC-46F housing: http://www.polycase.com/item/dc-46f.html ABS fire-resistant plastic.