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Meigs2
An open source espresso machine controller inspired by the Gaggiuinio Project
| Reference | Value | Description |
|---|---|---|
| U1 | Pico | |
| U2 | ADS1119IPWR | |
| U3 | TCA9534 | 8 Bit Port/Expander, I2C SMBUS, Interrupt output, TSSOP-16, SOIC-16 |
| U4 | MAX31855EASA | Cold Junction E-type Termocouple Interface, SPI, SO8 |
| U5 | PCA9544APWR | 4-channel I2C-bus multiplexer with interrupt logic, TSSOP-20 |
| U7 | MAX6107 | Low-dropout high current voltage reference, 4.500V, ±0.4% accuracy, SOT-23 |
| U8 |
| U9 | DS3231MZ | ±5ppm, I2C Real-Time Clock SOIC-8 |
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| BT1 | BA2032 | Single-cell battery |
|---|
| C1-C5,C7-C10 | 0.1u | Unpolarized capacitor, small symbol |
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| D1,D2 | 4.7v | Zener diode |
|---|
| J1 | SWD | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J2,J9 | GPIO | Generic connector, single row, 01x08, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J3 | Conn_01x04 | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J4 | UART | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J5 | Conn_01x02 | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J7 | EXT_SPI | Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J8 | EXT_I2C | Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J10 | HV_IDC | Generic connector, single row, 01x08, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| R1-R18 | 1k | Resistor, small symbol |
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| SW1 | RES |
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