Pin Function Grouping
98 days
Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, 3v3, gnd_1 gnd_2 etc
NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function
Thought for 1 min 14 sec
98 days
Yes — from the BME280 datasheet pin table, I’d group each pin exactly once like this:
Table
| Functional group | Pins |
|---|---|
| Power | Pin 8: VDD — analog supply; Pin 6: VDDIO — digital/interface supply |
| Ground | Pin 1: GND, Pin 7: GND |
| Communication / Interface | Pin 2: CSB — chip select; Pin 3: SDI — serial data input / SDA; Pin 4: SCK — serial clock / SCL; Pin 5: SDO — serial data output / I²C address select |
No pin is duplicated across groups. For naming, I’d keep both ground pins in the same Ground group but label them separately as
GND_1 = pin 1 and GND_2 = pin 7 if the symbol needs unique terminal names.Update pin groups
Check BME280 connections
Verify pin naming
Run ERC checks
SDO
GND
GND
SDI
VDDIO
VDD
SCK
CSB
Reviews
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BME280
Humidity, Pressure, Temperature 0 ~ 100% RH I²C, SPI ±3% 1 s Surface Mount
BME280 I2C breakout module
The BME280 integrates three sensors—temperature, relative humidity, and pressure—along with a high-performance digital interface. It communicates via I²C or SPI, making it easy to interface with microcontrollers like Arduino, ESP32, and STM32.
It is designed for low power consumption, making it suitable for battery-powered applications such as portable weather stations and smart home devices.
Key Features
Environmental Sensing
Measures:
Temperature
Relative Humidity
Barometric Pressure
Enables altitude estimation based on pressure readings
High Accuracy
Temperature: ±1.0°C (typical)
Humidity: ±3% RH (typical)
Pressure: ±1 hPa (typical)
Low Power Consumption
Typical current:
~0.6 µA (sleep mode)
~3.6 µA (measurement mode)
Ideal for battery-operated devices
Communication Interfaces
Supports:
I²C (up to 3.4 MHz)
SPI (3-wire / 4-wire)
Easy integration with most microcontrollers
Compact Package
Small footprint: 2.5 × 2.5 × 0.93 mm LGA package
Suitable for space-constrained designs
Built-in Features
Factory-calibrated coefficients stored in NVM
Configurable oversampling and filtering
Integrated ADC for high-resolution measurements
Properties
Sensor
Bosch Sensortec
BME280
U
parametric-v1
Pricing & Availability
DPN | Stock | Qty 1 |
|---|---|---|
2 | 0–8.2K | $2.405–$3.255 |
3 | 0 | $0.00 |
1 | 434 | $6.74885 |
1 | 9.5K | $5.9172 |
1 | 0 | $3.85 |
2 | 0 | $0.00 |
Controls
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