Parts

[TooAngel]

• https://modellbau-schoenwitz.de/de/Zahnradpumpe-Wasserpumpe-Pumpe-selbstansaugend
• Breadboard
• Double USB power supply 2A
• Arduino
• RedFly Shield
• 200 Ohm resistor
• Transistor TIP121
• Soilmoisturesensor

[TooAngel]

                                +----------------------------+               
           +--------------------+                            |               
           |                    |                            |               
           | +------------------+    Soil moisture sensor    |               
           | |                  |                            |               
           | | +----------------+                            |               
           | | |                +----------------------------+               
           | | |                                                             
           | | |                                                             
           | | |                                                             
           | | |                        +-----------------------------+      
       +---+-+-+-----------+            |                             |      
       |                   |            |     +--------------------+  |      
+------+                   |            |     |                    |  |      
|      |    Arduino        |            |     | Transistor TIP 120 |  |      
| +----+                   |            |     |                    |  |      
| |    |                   |            |     +-----+----+-----+---+  |      
| |    +---------+--+------+            |           |    |     |      |      
| |              |  |                   |           |    |     +------+      
| |              |  +-------------------+           |    |     |             
| |              |                                  |    |     |             
| |              |      +------------------+  +-----+    |     |             
| |              |      |                  |  |          |     |             
| |              +------+ Resistor 175 OHM +--+    +-----+     +------------+
| |                     |                  |       |                        |
| |                     +------------------+       |  +----------------+    |
| |                                                +--+                |    |
| |                                                   |  Pump          |    |
| |                                            +------+                |    |
| |                        +---------------+   |      +----------------+    |
| +------------------------+               +---+                            |
|                          | Power         |                                |
+--------------------------+               +--------------------------------+
                           +---------------+