BoardPilotMAX31865 PT100/PT1000 RTD amplifier con ESP32
Alimentazione 3.3-5 V
Bus SPI
Misura temperatura
Pin e collegamento all’ESP32
| Pin | Ruolo | Pin ESP32 | Note |
|---|---|---|---|
| VIN | Alimentazione | 3V3 | |
| 3VO | Non collegato all’ESP32 | — | 3.3 V output of the on-board regulator. Leave unconnected |
| GND | Massa | GND | |
| CLK | Clock SPI | D18 | |
| SDO | SPI MISO | D19 | Data out of the module (SPI MISO) |
| SDI | SPI MOSI | D23 | Data into the module (SPI MOSI) |
| CS | Chip select SPI | D5 | |
| RDY | Interrupt | D35 | Data ready (active LOW), optional |
| F+ | Non collegato all’ESP32 | — | Force + screw terminal (4-wire RTD) |
| RTD+ | Non collegato all’ESP32 | — | RTD + screw terminal |
| RTD- | Non collegato all’ESP32 | — | RTD - screw terminal |
| F- | Non collegato all’ESP32 | — | Force - screw terminal. Set the 2/3/4-wire jumpers to match your probe |
Collegamento consigliato per l’ESP32 DevKit a 30 pin, evitando i pin della flash, di sola lettura e di strapping. BoardPilot lo controlla mentre colleghi.
Fonti
- Maxim MAX31865 datasheet, SPI modes 1 and 3; reference resistor 430 Ω for PT100, 4.3 kΩ for PT1000
- Adafruit MAX31865 guide, Pinout VIN, 3Vo, GND, CLK, SDO, SDI, CS, RDY; 2/3/4-wire jumpers
Provalo in 3D in BoardPilot
Componenti simili
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Dati dei componenti: CC BY 4.0, riutilizzabili citando BoardPilot.