SGBotic has created a series of Micro:Bit EduFun Mini Project Kits with the aim of making advance devices available to micro:bit inventors. Much efforts have been devoted to designing the makecode's Block packages to remove the complexity of using these devices, making it easier for inventors to incorporate into their projects.
This kit contains the essential components for constructing an automated plant watering system that will maintain the moisture level in soil without human intervention. A sensor features two large, exposed pads that are to be inserted into the soil is used to measure the moisture level of the soil. More water in the soil will cause higher output signal, and vice versa.
The soil moisture level will be monitored by the micro:bit program, and when it drops below pre-defined level, the water pump will be switched on until the soil is moist enough.
A makecode Block package is developed for this kit:
The first project in the printed guide will guide through the wiring as well as using the makecode Block to monitor the moisture level and to control the water pump. The second project further enhance the functionality of first project by integrating a real time clock so that watering only occurs at scheduled time.
- Soil moisture sensor
- Mini submersible liquid pump
- Driver board
- 2xAAA battery holder with switch and JST connector
- Silicone tubing
- M/M jumper wire
- M/F jumper wire
- Printed guide
Take note that Micro:Bit, T-Expansion board and breadboard, 2 AAA batteries which are used in the project are not included in this kit. Instead of T-Expansion Board, you can also use any micro:bit breakout board. Project 2 also requires Real Time Clock kit. All of these can be separately purchased from sgbotic.com.