Connections.txt

WeMOS D1
 5V - 5V
GND - GND
 D4 -
 D3 -
 D2 - SDA
 D1 - SCL
33V - 3.3 250mA 
3.3V Voltage regulator ME6211 500mA
ESP8266 has max current consumption of 400mA

Display
VCC 5V 10-100mW
GND
SDA needs 5V logic
SCL needs 5V logic

SPS30 Particle Sensor
1 5V   (location is left, away from corner) 8mA idle, 60mA average
2 SDA - 3.3 and 5 V logic, 10k pull up to logic high
3 SCL - 3.3 and 5 V logic, 10k pull up to logic high
4 SEL - GND for I2C
5 GND

SGP30 VOC
1.62-1.98V, 48mA
GY-SGP30
VIN  2..5V
GND
SCL
SDA

SCD30 CO2
VDD - 3.3...5.5, 19mA
GND 
SCL - 3.3 logic
SDA - 3.3 logic
RDY - Out active high when data is ready
PWM - Out if PWM is used to encode CO2 conc, NC
SEL - GND for I2C

BME680 Pressure Humidity, 1.7..3.6 1 miroA sleep,0.4..0.85mA during measurement
CJMCU-680
VDD   - 3.3...5.5
VDDIO - VDDIO
GND   - GND
SDI   - SDA
SCK   - SCL  
SDO   - GND , default address
CS    - Chip Select, active high

CJMCU811 https://revspace.nl/CJMCU-811
CCS811
RST - reset active low in
INT - interrupt active low out
WAK - wake active low, sleep if high
SCL - 0.6..VDD is high
SDA - 0.6..VDD is high
33V - 1.8..3.3V Power 30-60mA
GND - GND
NTC - negative thermal coefficient resistor, 10kOhm

CJMCU-906
MLX90614ESF