How to make a simple nucleic acid sampling machine

How to make a simple nucleic acid sampling machine

Introduction

Nucleic acid testing has long been a part of our daily life as the epidemic has become normal. So can we make a simple nucleic acid sampling machine with simple equipment? Let's take a look at my work.

Materials required:

nucleic acid sampling machine
BBC micro:bit V2 x 1

nucleic acid sampling machine
360°servo x 1

nucleic acid sampling machine
Ultrasonic sensor x 1

nucleic acid sampling machine
Nezha Breakout board x 1

nucleic acid sampling machine
Building Blocks x N

nucleic acid sampling machine
Paper cups or any other containers x 5

nucleic acid sampling machine
Cotton swabs x N

Setup Step diagram

1. Base part of sampling machine:

nucleic acid sampling machine

2. Main part of sampling machine:

nucleic acid sampling machine

nucleic acid sampling machine

Side

nucleic acid sampling machine

Front

nucleic acid sampling machine

Back

nucleic acid sampling machine

High angle shot

3. Claws:

nucleic acid sampling machine

Side

nucleic acid sampling machine

High angle shot

4. The body is combined with the claws

nucleic acid sampling machine

5. Access the sensor

nucleic acid sampling machine

Nezha Breakout board

nucleic acid sampling machine

Ultrasonic sensor

6. Complete the construction

nucleic acid sampling machine

7、 plus auxiliary materials: cotton swabs, paper cups

nucleic acid sampling machine

Program

1. Open the http://microbit.makecode.org programming platform. To program, we need to add a library: click 'Extensions' at the bottom of MakeCode, search for' nezha 'in the dialog box, and click

nucleic acid sampling machine

2、 Click Ne Zha, drag the building blocks of the steering gear, and set the torque and Angle of the steering gear to 360°. The steering gear on the claw is connected to S1 interface, with an Angle of 10°; The steering gear that controls the movement of claws up and down is connected to s2 interface with an Angle of 170°; The steering gear controlling gear rotation is connected to S2 interface at an Angle of 50°.。

nucleic acid sampling machine

3, the next preparation of ultrasonic sensor. The ultrasonic wave is connected to the J1 interface of Nezha, and the Angle of the three steering engines is adjusted when the distance induced by the ultrasonic wave is less than or equal to 20, and the pause time is set. The complete procedure is as follows:

nucleic acid sampling machine

Code link: https://makecode.microbit.org/_YpX2PE8EHTAc

These are the complete steps of nucleic acid sampling mechanism. You can also imagine transforming it into automatic feeding machine and other works. Look forward to your more wonderful creation!