Project 2 of 3 Motion

Servo latch prototype

Moves a small model latch after an accepted input; not for real door security.

One of 3 projects in the RFID Access Control Learning Kit — the parts below are from that kit.

// How it works

What you build in this project

Servo latch prototype is one focused build from the RFID Access Control Learning Kit. It uses the parts listed below to make a working electronics example, then you can combine it with the other projects in the kit.

Moves a small model latch after an accepted input; not for real door security.

Parts used

SG90 servo, controller board, keypad

What to check

Wire the parts, upload the sketch from the kit page, then test this project by watching the Serial Monitor or the output behavior.

What you learn

You learn how the controller reads real sensor signals, makes a decision in code, and turns that result into a useful output.

// Items used

What this project uses

Every item is in the kit — nothing extra to buy.

SG90 servo SG90 9g Micro Servo Motor, 180° Position Control PWM RC Servo, 4.8V–6V Mini Servomotor for Arduino ESP32 RC M… SG90

In the kit

controller board

In the kit

keypad 4x4 Matrix Keypad Module 16-Key Tactile Microswitch Keyboard PCB Board with 8-Pin Row/Column Header for Ardui… DIY-00057

In the kit

Basics Transparent 830 Points Solderless Breadboard Clear Prototype Circuit Board MB-102 High Quality DIY Electronic… DIY-295

In the kit

Basics Jumper Wire Assorted Pack 120 Pieces - Male-to-Male, Male-to-Female, Female-to-Female 10cm Ribbon Cables for… DIY-212

In the kit

Build this with

RFID Access Control Learning Kit

All 10 parts in one box, with this project and 2 more to build from them.

Price on request See the kit Request this kit

Need only these parts? Order them loose · from AED 69.44

Used in this project tick what you still need

SG90 servo SG90 9g Micro Servo Motor, 180° Position Control PWM RC Servo, 4.8V–6V Mini Servomotor for Arduino ESP32 RC M… SG90 · ×1

AED 13.67

In stock

keypad 4x4 Matrix Keypad Module 16-Key Tactile Microswitch Keyboard PCB Board with 8-Pin Row/Column Header for Ardui… DIY-00057 · ×1

AED 15.00

In stock

Also needed untick if you already have them

Basics Transparent 830 Points Solderless Breadboard Clear Prototype Circuit Board MB-102 High Quality DIY Electronic… DIY-295 · ×1

AED 15.75

In stock

Basics Jumper Wire Assorted Pack 120 Pieces - Male-to-Male, Male-to-Female, Female-to-Female 10cm Ribbon Cables for… DIY-212 · ×1

AED 25.02

In stock

Selected parts AED 69.44

One of each part. Packs (resistor assortment, jumper wires) already hold more than a single build needs. controller board: included in the kit, ask us for it loose. Delivery is free on orders AED 150.00+.

// Keep going