Prerequisites

Hardware Needed

Note: Due to the current semi-conductor shortage, some parts may cost more than usual.

Required:

• Raspberry Pi 4 ~ $43.50

• Pi2Grover Hat ~ $20

• MicroSD card ~ $10.30

• DHT22 (temperature and humidity) sensor ~ $6.47

• Capacitive soil moisture sensor ~ $5.39

• Grove - 4 Channel 16 Bit Analog to Digital Converter ~ $17

• 12v water pump ~ $13

• Relay ~ $4.31

• DC Jack and wall plug ~ $12

• Alligator clips ~ $8

• Jumper wires ~ $7

• Grove Universal 4-pin buckled 50cm cable ~ $12

• Grove 4-pin female jumper to Grove 4 pin conversion cable ~ $11

• Silicone tubing 1/8 inches, 3/16 inches diameter ~ $6.47

Optional:

• LCD screen ~ $12

Total Cost

• Total cost without LCD: $176.44

• Total cost with LCD: $188.44

Plants Supported

FarmSignal is meant to support small to medium sized house plants.