Conflicting sensors on one ESP devices

ESPHome
1

Hi

I added some sensors to an ESP32 to measure air quality in my home.
I’m using sensors: ccs811 (i2c), sds011 (uart) and senseair S8 (uart). To help increase lifespan of the sds011 sensor, I set the measuring interval to 8 minutes.

The problem is that the spinning up the sds011 for its periodic measurement seems to impact the other two sensors (value spikes). Mainly the sensair. See screenshot.
After the red line, I disconnected the sds011 and no more measurement spikes for the other sensors.
I’m guessing that the spinning up the sds011 fan takes up to much power of the esp32 and impacts the other sensors.
Is there a solution while keeping all the sensors connected to this one board? I don’t want the sds011 to do continues measurement as this will decrease the lifespan.

Uart
Uart1179×486 77.5 KB

My config in esphome:

'i2c:
  sda: GPIO23
  scl: GPIO5
  
uart:
  - rx_pin: GPIO17
    tx_pin: GPIO16
    baud_rate: 9600
    id: SDS011
  - rx_pin: GPIO21
    tx_pin: GPIO22
    baud_rate: 9600
    id: sensair

sensor:
  - platform: ccs811
    eco2:
      name: "eCO2 (CCS811)"
      id: ccs811_eco2
    tvoc:
      name: "Total Volatile Organic Compound (CCS811)"
      id: ccs811_tvoc
    address: 0x5A
    update_interval: 61s
    baseline: 0xB47C
  - platform: sds011
    pm_2_5:
      name: "Particulate Matter <2.5µm Concentration"
    pm_10_0:
      name: "Particulate Matter <10.0µm Concentration"
    update_interval: 8min
    uart_id: SDS011
  - platform: senseair
    co2:
      name: "SenseAir CO2 Value"
    update_interval: 60s
    uart_id: sensair
    id: sensair_woonkamer
2

I am not sure how your SDS011 is wired up, but it sounds like a separate power supply, or a capacitor may help.

3

all sensors are connected to the single 5V VCC and same ground.
So hook them up directly to the power supply rather then via the esp board?