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Description
# Minimal breakout board for Silicon Labs SI705x/SI702x/Si7006 I2C temperature / temperature + humidity sensors.
This board does **not** includes any sort of voltage regulator. Make sure to supply correct Vcc (**1.9 to 3.6 V**) for this board. Connecting directly to 5V MCU (like Arduino without 3.3 V voltage regulators) will burn this sensor. This is a minimal circuit from "Typical Application Circuit" section from the datasheet.
## Parts list (BOM):
R1-R2: Resistor, 10 k, ±5%, 1/16 W, 0603
C1: Capacitor, 0.1 μF, 16 V, X7R, 0603
U1: Si705x/702x/7006 sensor, DFN6.
Tested to work with Si7051 high accuracy temperature sensor, reading data with Arduino.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | SI705x-A20-IM | U1 | DFN-63MM | 1 |
| 2 | 0.1UF-16V(+-10%)(0603) | C1 | 0603-CAP | 1 |
| 3 | 10k | R1,R2 | 0603-RES | 2 |
| 4 | CON_HEADER_1X04 | J1 | M1X4 | 1 |
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