component
BME690 v2.0
Unreviewed8x8 mm KiCad molecule for the Bosch BME690 4-in-1 gas/temp/humidity/pressure sensor. I2C with 2.2k pull-ups, 0402 passives.
BME690 Molecule v2.0
KiCad 9 molecule breakout for the Bosch BME690 — a 4-in-1 environmental sensor with gas (VOC), temperature, humidity, and barometric pressure sensing plus an on-chip AI gas scanner.
Overview
| Parameter | Value |
|---|---|
| IC | BME690 (Bosch Sensortec, LGA-8, 3x3 mm) |
| Interface | I2C (default addr 0x76, SDO to GND) |
| Board size | 8 x 8 mm |
| Passives | 0402 |
| LCSC PN | C42431867 |
BOM
| Ref | Value | Package | LCSC |
|---|---|---|---|
| U1 | BME690 | LGA-8 3x3 mm | C42431867 |
| R1, R2 | 2.2k (I2C pull-ups) | 0402 | C25879 |
| R3 | 10k (CSB pull-up) | 0402 | C25744 |
| C1, C2 | 100 nF (bypass) | 0402 | C1525 |
Contacts
4 machine-pin contacts + 4 machine-contact pads for Adom baseboard integration.
Design Notes
- I2C pull-ups are 2.2k — works for both 100 kHz and 400 kHz modes
- CSB tied high via 10k to select I2C mode (vs SPI)
- SDO tied to GND for I2C address 0x76
- Decoupling caps placed close to VDD and VDDIO pins
- Gas sensor inlet on top of IC — keep clear of conformal coating and enclosure obstructions
Source
- GitHub: adom-inc/bosch-molecules/BME690_Molecule
- Designed in: KiCad 9
