Hello and welcome to my very first instructable. This is the project for people who care for their plant and are willing to pay a little extra. I promise you this will work.

Supplies

microbit

ribbon cable

drill and drill bit

plant

solder and soldering iron

computer

capacitive moisture censor

a little box

tupaware or storage container.

dual AAA battery input thing.

usb cable

DC water pump

Step 1: Tinkercad

Open tinkercad, login with google and open circuits and copy everything in the image above. The potentiameter represents the moisture sensor that they dont have.

Step 2: Electronics Box

I would recommend using the box it came in. Trace the microbit with a marker and cut out on the line. Make sure the microbit hole is in the middle of the box. Tape or hot glue the microbit in place. make a flat tab that can fit your moisture sensor and out it through. you can add extensions to your wire if you want.

Step 3: Prep the Pump

Drill another hole on the bottom of the box and 2 wires. I would recommend one black and one red wire. solder it like shown in the design. when soldering the wires should be stripped.

Step 4: Solder the Moisture Sensor

this part is pretty easy depending on who you are and if you know what you are doing. Make sure the Wires are striped on one end before doing this. Make sure you are following the tinkercad blueprint except the yellow wire is the one going on to p0 and the red and black are meeting the ground and the 3v.

Step 5: Add the Power Source

find a space in the box, add hot glue to the BOTTOM of the battery case and hot glue it down. Make sure the power wire can plug into the microbit.

Step 6: Add the Code

This part is pretty difficult so make sure to pay close attention. plug your microbit into the computer. there should be a microbit thing on your computer homepage. click it open and. click download on your code and there should be something on the bottom of your chrome browser. drag that code into your microbit.

Step 7: Prepare the Tank

find a bucket or a storage container. glue the pump to a wall of the container. make sure it is low as possible without touching the bottom. Drill a hole for the hose and one for the wire.

Step 8: Back to the Soldering Iron

Solder the wires according to their colors. When you solder make sure the microbit is off.

Step 9: Trouble Shooting

If one of the buttons don't work then I would check if your solder connections are secure. If the screen does not make the right on screen then I would either look back at the code or check if the battery is charged or plugged in. If the pump is sucking air in and making bubbles then your wires are backwards.

Step 10: Conclusion

This was a very fun project to make and I am very happy about the results and would definately recommend this project with a lower level coder and circuiter. I made this for my cactus so of course you can change the timer in between each auto watering time. Make sure to vote for me in the gardening contest.