Sparkfun qwiic quad solid state relay kit.
Arduino solid state relay board.
Kta 223 usb rs485 relay io board dev 09526 144 95.
Colored wire 16 18 gauge.
Relay spdt sealed.
The solid state relay can be controlled with 3v so is suitable for the 3 3v arduino boards.
However it takes about 12ma to switch the solid state relay so do check that your board can supply that amount of current from a digital output.
Ground the gnd pin of dht22.
For ssr solid state relay i used the digital pin 7.
Sainsmart 8 channel 5v solid state relay module board for arduino uno duemilanove mega2560 mega1280 arm dsp pic 4 4 out of 5 stars 125.
Led indicator for each relay.
I powered the dht22 with the arduino 5 volt output.
Some 3 3v boards like linkit one will only supply 3ma from a digital output.
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Iwiss sn 28b crimping tool for awg28 18 dupont pins 4 6 out of 5 stars 846.
However it takes about 12ma to switch the solid state relay so do check that your board can supply that amount of current from a digital output.
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Aitrip 8 channel 5v solid state relay module board high level trigger for arduino uno duemilanove mega2560 mega1280 arm dsp pic 4 1 out of 5 stars 6 17 66 17.
Crimp on fork terminals 16 18 gauge.
Project circuit is simple connect the dht22 digital pin with the digital pin 2 of arduino.
Some 3 3v boards like linkit one will only supply 3ma from a digital output.
In stock on august 19 2020.
The solid state relay can be controlled with 3v so is suitable for the 3 3v arduino boards.