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Technical Specifications
Specifications of the Smart Coffee board:
Size : 166mm (6.53inch) long x 101mm  (3.97inch) wide x 30mm (1.18inch) high
Power in: 100~240VAC
On board DC power supply:Â 5VDC, 2A
On board 3.3V power supply:Â 1A
On board, Solid-Sate relays 100~240VAC live outputs:
- 2x Boiler element (10A)
- 1x Pump (10A)
- 2x Programmable relays (usually connected to solenoid valves) (1A)
Total combined output current limit from relays: 20A
- Element 1, and Pump combined max current: 10A
- Element 2, RLY1, and RL2 combined max current: 10A
7x 5VDC relay control outputs:Â (used to control external relays for high current loads)
2x Boiler element
1x Pump
4x Programable relays
Fuse: 2x   5x20mm, 10A
Inputs/Outputs:
- 4/6 wire Load Cell Input
- I2C display screen interface
- 2x Pressure transducer inputs
- 2x Boiler water level detection probes
- Brew Switch input
- Espresso mode selection input
- Reservoir water level detection options:
Reservoir touch-sensitive probe (for detecting water)
Reservoir float switch (compatible with NO and NC switches)
Ultrasonic water level detection
- Ultrasonic distance sensor (for measuring water level inside a reservoir tank)
- 2x MAX31865 temperature sensors (compatible with 2, 3, and 4 wire probes. PT100 and PT1000 series compatible)
- 6x User programable GPIO pins (M1, M2, S1, S2, S3, and PT3) write your own code to make use of these pins to really customize your coffee experience
- 7x 5VDC relay control outputs: (used to control external relays for high current loads)
- 2x Boiler element
- 1x Pump
- 4x Programmable relays
Smart-Coffee
Smart – Coffee circuit board
$329.00
Upgrade your espresso machine with the Smart Coffee Controller—a powerful, customizable system designed for coffee enthusiasts and tinkerers. The kit includes the Smart Coffee circuit board, mounting hardware, and Smart Coffee software. With built-in solid-state relays, multiple sensor inputs, load cell support, and programmable GPIO pins, it gives you complete control over boilers, pumps, solenoids, and more. Compact yet robust, it runs on 100–240VAC and integrates seamlessly with your chosen sensors (sold separately). Perfect for DIY machine upgrades or custom coffee projects.
Availability: 5 in stock (can be backordered)
| Weight | 0.5 kg |
|---|---|
| Dimensions | 250 × 185 × 150 cm |
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Smart – Coffee circuit board kit
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