How to Simulate 3D Printer with Micro:bit?

Overview
 

During the DIY, we may usually use a machine-3D printer. You can use it to print any elements with different structures. And limit switch is essential in the printing, which mainly provides the information whether XYZ axis of printer reach the boundary point.
 

Keyestudio crash sensor is a limit switch, available for 3D printer. It is in essence the same as button module. When printer reaches the top to crash the spring plate of module, module outputs Low level. If loosen the spring plate, module outputs High.
 

In this lesson, you will learn how to use a collision sensor and a digital buzzer module to simulate the 3D printer limit.

Component Introduction
 

Crash Sensor:
 

Crash sensor, also known as electronic switch, is a digital on-off input module. The features are as follows:

1. When collision happens upfront of where crash module is installed, module outputs low level signal; no collision, outputs high level signal.

2. With a mounting hole, convenient for fixation on any devices.

3. PCB size: 3.1cm * 2.1cm

4. With switch indicator light, if there is collision, LED on; if no collision, LED off.

Component Required:
 

• Micro:bit main board*1

• Keyestudio Micro bit Sensor V2 Shield*1

• USB Cable*1

• keyestudio Crash Sensor*1

• keyestudio Digital Buzzer Module*1

• DuPont jumper wire*6

• Premium Battery Holder 6-cell AA*1

• 1.5V AA Battery*6

Connection Diagram
 

Test Code
 

Test Results
 

Done wiring and powered up, send the code to micro:bit. When the spring plate of crash sensor is pressed, the buzzer module will beep, otherwise buzzer will not sound.