BoardPilotLogic level converter 4 channels (BSS138) con ESP32
Alimentazione 3.3 V
Bus GPIO
Pin e collegamento all’ESP32
| Pin | Ruolo | Pin ESP32 | Note |
|---|---|---|---|
| LV1 | Non collegato all’ESP32 | — | Low-voltage (3.3 V) side, channel 1. Bidirectional: to an ESP32 GPIO |
| LV2 | Non collegato all’ESP32 | — | Low-voltage side, channel 2 |
| LV | Alimentazione | 3V3 | 3V3 |
| GND | Massa | GND | |
| LV3 | Non collegato all’ESP32 | — | Low-voltage side, channel 3 |
| LV4 | Non collegato all’ESP32 | — | Low-voltage side, channel 4 |
| HV1 | Non collegato all’ESP32 | — | High-voltage (5 V) side, channel 1 |
| HV2 | Non collegato all’ESP32 | — | High-voltage side, channel 2 |
| HV | Non collegato all’ESP32 | — | 5 V: to VIN or the 5 V supply |
| GND2 | Massa | GND | Second GND pad on the high-voltage side |
| HV3 | Non collegato all’ESP32 | — | High-voltage side, channel 3 |
| HV4 | Non collegato all’ESP32 | — | High-voltage side, channel 4. Slow edges: fine for I2C, too slow for WS2812 |
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
- SparkFun Logic Level Converter (BOB-12009) hookup guide, LV and HV sides, BSS138 with 10 kΩ pull-ups
- NXP AN10441 level shifting in I2C-bus systems, MOSFET bidirectional level shifter
Provalo in 3D in BoardPilot
Componenti simili
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Dati dei componenti: CC BY 4.0, riutilizzabili citando BoardPilot.