Rectronx Circuits
Rectronx Components

Electronics component database for Malaysian FYP projects

Search practical guides for ESP32, Arduino, sensors, GSM, RFID, displays and modules. Get specs, wiring notes, common mistakes, alternatives and project ideas in one place.

70

starter component guides

Mistakes

real engineering notes, not brochure copy

FYP linked

components connect to project ideas and blogs

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Showing 70 of 70 components

Display Module4.7/5
0.96 inch SSD1306 OLED display module

0.96 inch OLED SSD1306 Display

Small I2C OLED display for compact sensor and IoT status screens.

ArduinoESP32Raspberry PiSTM32
RM8-RM20View guide
Display Module4.5/5
16x2 LCD I2C Display electronics module illustration

16x2 LCD I2C Display

Simple text display for sensor readings and project status.

ArduinoESP32Raspberry Pi
RM8-RM20View guide
Stepper Motor4.5/5
28BYJ-48 Stepper Motor electronics module illustration

28BYJ-48 Stepper Motor

Small geared stepper motor for low-cost positioning demos.

ArduinoESP32
RM8-RM20View guide
Interface Support4.5/5
4-Channel Logic Level Converter electronics module illustration

4-Channel Logic Level Converter

Bidirectional level shifting for 3.3V and 5V signal compatibility.

ESP32ArduinoRaspberry PiI2C modules
RM3-RM10View guide
Input Module4.5/5
4x4 Matrix Keypad electronics module illustration

4x4 Matrix Keypad

16-key keypad for passwords, menus and access-control projects.

ArduinoESP32STM32
RM4-RM15View guide
Weight Sensor4.5/5
5kg Load Cell electronics module illustration

5kg Load Cell

Strain-gauge weight sensor for smart scale and bin projects.

HX711ArduinoESP32
RM8-RM25View guide
Switching Module4.5/5
single channel blue 5V relay module

5V Relay Module

Electrically controlled switch for lights, pumps, fans and AC-load demos.

ArduinoESP32 with suitable moduleRaspberry Pi with driver
RM4-RM18View guide
Stepper Driver4.5/5
A4988 Stepper Motor Driver electronics module illustration

A4988 Stepper Motor Driver

Compact stepper driver for NEMA17 motion and positioning projects.

ArduinoESP32NEMA17 Stepper
RM5-RM15View guide
ADC Module4.5/5
ADS1115 16-bit ADC Module electronics module illustration

ADS1115 16-bit ADC Module

External high-resolution ADC for analog sensors and data logging.

ArduinoESP32Raspberry Pi
RM10-RM28View guide
Water Quality Sensor4.5/5
Analog pH Sensor Kit electronics module illustration

Analog pH Sensor Kit

pH probe and interface board for aquaculture and water quality FYP projects.

ArduinoESP32 with safe ADC scaling
RM45-RM120View guide
Microcontroller4.7/5
Arduino Uno R3 board with digital and analog headers

Arduino Uno R3

Beginner-friendly 5V board for simple sensors, relays and prototypes.

Arduino IDEMost beginner sensor modules
RM18-RM55View guide
Rotary Position Sensor4.5/5
AS5600 Magnetic Rotary Encoder electronics module illustration

AS5600 Magnetic Rotary Encoder

Magnetic angle sensor for non-contact rotary position measurement.

ArduinoESP32Raspberry Pi
RM10-RM28View guide
Light Sensor4.5/5
BH1750 Digital Light Sensor electronics module illustration

BH1750 Digital Light Sensor

Digital lux sensor for lighting, solar and comfort projects.

ArduinoESP32Raspberry Pi
RM5-RM18View guide
Environmental Sensor4.8/5
BME280 environmental sensor breakout board

BME280 Environmental Sensor

Digital temperature, humidity and pressure sensor for weather stations.

ArduinoESP32Raspberry PiSTM32
RM12-RM35View guide
High Current Driver4.5/5
BTS7960 High Current Motor Driver electronics module illustration

BTS7960 High Current Motor Driver

High-current H-bridge module for stronger DC motor prototypes.

ArduinoESP32
RM18-RM45View guide
Soil Moisture Sensor4.5/5
Capacitive Soil Moisture Sensor electronics module illustration

Capacitive Soil Moisture Sensor

More durable soil moisture sensor for agriculture and irrigation prototypes.

ArduinoESP32
RM5-RM18View guide
Temperature Humidity Sensor4.5/5
DHT11 Temperature Humidity Sensor electronics module illustration

DHT11 Temperature Humidity Sensor

Very low-cost temperature and humidity sensor for beginner demos.

ArduinoESP32Raspberry Pi
RM3-RM8View guide
Temperature Sensor4.5/5
DHT22 white temperature humidity sensor module

DHT22 Temperature and Humidity Sensor

Simple digital temperature and humidity sensor for weather and greenhouse projects.

ArduinoESP32Raspberry PiSTM32
RM8-RM18View guide
Stepper Driver4.5/5
DRV8825 Stepper Motor Driver electronics module illustration

DRV8825 Stepper Motor Driver

Higher-current stepper driver for stronger motion prototypes.

ArduinoESP32NEMA17 Stepper
RM8-RM22View guide
Temperature Sensor4.5/5
DS18B20 Waterproof Temperature Sensor electronics module illustration

DS18B20 Waterproof Temperature Sensor

Waterproof digital temperature probe for tanks, aquaculture and outdoor builds.

ArduinoESP32Raspberry Pi
RM5-RM18View guide
RTC Module4.5/5
DS3231 RTC Module electronics module illustration

DS3231 RTC Module

Accurate real-time clock module for schedules and data logging.

ArduinoESP32Raspberry Pi
RM5-RM18View guide
Microcontroller4.9/5
ESP32 development board with USB connector and pin labels

ESP32 Development Board

WiFi and Bluetooth microcontroller for IoT FYP projects.

Arduino IDEESP-IDFMicroPythonBlynk
RM18-RM45View guide
Camera Microcontroller4.5/5
ESP32-CAM Module electronics module illustration

ESP32-CAM Module

Low-cost WiFi camera module for image capture and AI demo projects.

Arduino IDEESP32 camera examplesWeb streaming demos
RM20-RM45View guide
WiFi Microcontroller4.5/5
ESP8266 WiFi Module electronics module illustration

ESP8266 WiFi Module

Low-cost WiFi board for simple IoT dashboards and alerts.

Arduino IDEBlynkFirebaseThingSpeak
RM10-RM25View guide
Safety Sensor4.5/5
Flame Sensor Module electronics module illustration

Flame Sensor Module

Infrared flame detection module for fire alert demos.

ArduinoESP32
RM3-RM10View guide
GPS Module4.5/5
NEO-6M GPS module with ceramic antenna

GPS NEO-6M Module

GPS receiver for vehicle tracking, panic button and outdoor location projects.

ArduinoESP32STM32Raspberry Pi
RM12-RM30View guide
Bluetooth Module4.5/5
HC-05 Bluetooth Module electronics module illustration

HC-05 Bluetooth Module

Classic Bluetooth serial module for phone-controlled prototypes.

ArduinoESP32STM32
RM8-RM20View guide
Distance Sensor4.6/5
HC-SR04 ultrasonic sensor with two round transducers

HC-SR04 Ultrasonic Sensor

Popular ultrasonic distance sensor for robots, bins and water-level demos.

ArduinoESP32STM32Raspberry Pi
RM3-RM10View guide
Weight Sensor Interface4.5/5
HX711 Load Cell Amplifier electronics module illustration

HX711 Load Cell Amplifier

24-bit load-cell amplifier for weighing scale projects.

ArduinoESP32Raspberry Pi
RM4-RM15View guide
Color Display4.5/5
ILI9341 TFT Display electronics module illustration

ILI9341 TFT Display

Color SPI TFT display for richer dashboards and interfaces.

ArduinoESP32Raspberry Pi
RM18-RM45View guide
Current Sensor4.5/5
INA219 Current Sensor electronics module illustration

INA219 Current Sensor

I2C current and voltage monitor for battery and solar projects.

ArduinoESP32Raspberry Pi
RM8-RM25View guide
Proximity Sensor4.5/5
IR Obstacle Sensor electronics module illustration

IR Obstacle Sensor

Short-range infrared obstacle detection module for counters and robots.

ArduinoESP32
RM3-RM10View guide
Rotary Input4.5/5
KY-040 Rotary Encoder Module electronics module illustration

KY-040 Rotary Encoder Module

Rotary knob input module for menus, counters and adjustment controls.

ArduinoESP32Raspberry Pi Pico
RM3-RM10View guide
Motor Driver4.4/5
red L298N dual H bridge motor driver module with heatsink

L298N Motor Driver

Classic dual H-bridge driver for small DC motor and robot car projects.

ArduinoESP32STM32Raspberry Pi
RM6-RM18View guide
Light Sensor4.5/5
LDR Light Sensor Module electronics module illustration

LDR Light Sensor Module

Simple light-dependent resistor module for day/night detection.

ArduinoESP32
RM2-RM8View guide
Power Module4.5/5
LM2596 Buck Converter electronics module illustration

LM2596 Buck Converter

Adjustable step-down regulator for powering modules safely.

ArduinoESP32SensorsRelay modules
RM4-RM15View guide
LoRa Module4.5/5
LoRa SX1278 Module electronics module illustration

LoRa SX1278 Module

Long-range low-power wireless module for sensor telemetry.

ArduinoESP32STM32Raspberry Pi
RM18-RM45View guide
Door Contact Sensor4.5/5
Magnetic Reed Switch Sensor electronics module illustration

Magnetic Reed Switch Sensor

Simple magnetic switch for door, window and cabinet status detection.

ArduinoESP32Raspberry Pi
RM2-RM10View guide
Biomedical Sensor4.5/5
MAX30102 Pulse Oximeter Sensor electronics module illustration

MAX30102 Pulse Oximeter Sensor

Heart-rate and SpO2 sensor module for health monitoring demos.

ArduinoESP32Raspberry Pi
RM10-RM30View guide
High Temperature Sensor4.5/5
MAX6675 K-Type Thermocouple Module electronics module illustration

MAX6675 K-Type Thermocouple Module

Thermocouple interface for higher-temperature measurement demos.

ArduinoESP32
RM12-RM35View guide
Microphone Module4.5/5
MAX9814 Microphone Amplifier electronics module illustration

MAX9814 Microphone Amplifier

Microphone amplifier with automatic gain control for audio sensing.

ArduinoESP32Raspberry Pi Pico
RM8-RM25View guide
Power Module4.5/5
MB102 Breadboard Power Supply electronics module illustration

MB102 Breadboard Power Supply

Breadboard power module for quick 3.3V and 5V prototype rails.

ArduinoESP32SensorsBreadboards
RM4-RM12View guide
I/O Expander4.5/5
MCP23017 I/O Expander electronics module illustration

MCP23017 I/O Expander

I2C GPIO expander for projects that need more input/output pins.

ArduinoESP32Raspberry Pi
RM8-RM22View guide
IR Temperature Sensor4.5/5
MLX90614 Infrared Temperature Sensor electronics module illustration

MLX90614 Infrared Temperature Sensor

Non-contact temperature sensor for object surface measurement.

ArduinoESP32Raspberry Pi
RM25-RM70View guide
Load Driver4.5/5
MOSFET Trigger Switch Module electronics module illustration

MOSFET Trigger Switch Module

Low-side switching module for LED strips, pumps and DC loads.

ArduinoESP32LED stripsDC pumps
RM5-RM18View guide
Motion Sensor4.6/5
MPU6050 GY-521 accelerometer gyroscope breakout board

MPU6050 Accelerometer Gyroscope

6-axis motion sensor for fall detection, vibration and balance projects.

ArduinoESP32STM32Raspberry Pi
RM5-RM15View guide
Environmental Gas Sensor4.8/5
MQ135 gas sensor module with blue PCB and metal mesh sensor can

MQ135 Air Quality Sensor

Low-cost gas sensor for relative air quality and smoke-style FYP demos.

ArduinoESP32STM32Raspberry Pi with ADC
RM6-RM15View guide
Stepper Motor4.5/5
NEMA17 Stepper Motor electronics module illustration

NEMA17 Stepper Motor

Common stepper motor for stronger positioning and motion projects.

ArduinoESP32A4988/DRV8825 drivers
RM25-RM70View guide
WiFi Development Board4.5/5
NodeMCU ESP8266 Board electronics module illustration

NodeMCU ESP8266 Board

Student-friendly ESP8266 board with USB programming.

Arduino IDEBlynkFirebaseThingSpeak
RM12-RM28View guide
RF Module4.3/5
NRF24L01 wireless RF module with PCB antenna

NRF24L01 RF Module

Low-cost 2.4GHz RF module for short-range wireless sensor projects.

ArduinoESP32STM32Raspberry Pi
RM4-RM18View guide
I/O Expander4.5/5
PCF8574 I/O Expander electronics module illustration

PCF8574 I/O Expander

Simple 8-bit I2C expander used in LCD backpacks and button panels.

ArduinoESP32LCD 16x2
RM4-RM12View guide
Motion Sensor4.5/5
PIR Motion Sensor electronics module illustration

PIR Motion Sensor

Passive infrared motion detector for security and occupancy projects.

ArduinoESP32Raspberry Pi
RM4-RM12View guide
Energy Meter4.5/5
PZEM-004T AC Energy Meter electronics module illustration

PZEM-004T AC Energy Meter

AC voltage, current and energy module for smart meter FYP projects.

ArduinoESP32
RM25-RM60View guide
Weather Sensor4.5/5
Rain Sensor Module electronics module illustration

Rain Sensor Module

Rain detection board for smart clothesline and weather projects.

ArduinoESP32
RM3-RM10View guide
Microcontroller4.5/5
Raspberry Pi Pico electronics module illustration

Raspberry Pi Pico

RP2040 microcontroller board for low-cost embedded control.

MicroPythonC/C++ SDKArduino IDE
RM18-RM35View guide
RFID Module4.7/5
RC522 RFID reader module with blue key tag and white card

RC522 RFID Reader

Low-cost 13.56MHz RFID reader for attendance, access and smart locker projects.

ArduinoESP32STM32Raspberry Pi
RM5-RM15View guide
Servo Motor4.5/5
SG90 Micro Servo Motor electronics module illustration

SG90 Micro Servo Motor

Small positional servo for locks, flaps and simple mechanisms.

ArduinoESP32Raspberry Pi
RM5-RM15View guide
4G Module4.5/5
SIM7600 4G LTE Module electronics module illustration

SIM7600 4G LTE Module

4G cellular module for modern GPS tracking and remote IoT projects.

ArduinoESP32Raspberry Pi
RM120-RM260View guide
GSM Module4.2/5
SIM800L red GSM module with antenna connector

SIM800L GSM Module

2G GSM module for SMS alerts and basic mobile network projects.

ArduinoESP32STM32
RM12-RM30View guide
Agriculture Sensor4.3/5
soil moisture sensor probe with comparator module

Soil Moisture Sensor

Low-cost soil moisture module for smart farming and irrigation demos.

ArduinoESP32Raspberry Pi with ADC
RM3-RM15View guide
Sound Sensor4.5/5
Sound Sensor Module electronics module illustration

Sound Sensor Module

Basic microphone module for noise level and sound-trigger demos.

ArduinoESP32
RM3-RM12View guide
Vibration Sensor4.5/5
SW-420 Vibration Sensor electronics module illustration

SW-420 Vibration Sensor

Low-cost vibration trigger module for impact and tamper demos.

ArduinoESP32
RM3-RM10View guide
DC Motor Driver4.5/5
TB6612FNG Dual Motor Driver electronics module illustration

TB6612FNG Dual Motor Driver

Efficient dual H-bridge driver for small robot cars and DC motors.

ArduinoESP32Raspberry Pi Pico
RM8-RM25View guide
I2C Multiplexer4.5/5
TCA9548A I2C Multiplexer electronics module illustration

TCA9548A I2C Multiplexer

I2C channel selector for multiple same-address sensors.

ArduinoESP32Raspberry Pi
RM8-RM22View guide
Water Quality Sensor4.5/5
TDS Sensor Module electronics module illustration

TDS Sensor Module

Total dissolved solids sensor for water quality and aquaculture demos.

ArduinoESP32
RM25-RM70View guide
Battery Charger4.5/5
TP4056 Lithium Battery Charger electronics module illustration

TP4056 Lithium Battery Charger

Single-cell lithium charging module for portable prototypes.

Portable Arduino projectsESP32 battery projects
RM2-RM8View guide
Water Quality Sensor4.5/5
Turbidity Sensor electronics module illustration

Turbidity Sensor

Water clarity sensor for river, pond and aquaculture projects.

ArduinoESP32 with safe ADC scaling
RM20-RM55View guide
Stepper Driver4.5/5
ULN2003 Stepper Driver Board electronics module illustration

ULN2003 Stepper Driver Board

Simple driver board commonly paired with 28BYJ-48 steppers.

ArduinoESP3228BYJ-48 Stepper
RM3-RM10View guide
Distance Sensor4.5/5
VL53L0X Time-of-Flight Distance Sensor electronics module illustration

VL53L0X Time-of-Flight Distance Sensor

Compact laser time-of-flight distance sensor for short-range measurement.

ArduinoESP32Raspberry Pi
RM12-RM30View guide
Liquid Level Sensor4.5/5
Water Level Sensor electronics module illustration

Water Level Sensor

Simple water-level detection module for tanks and flood alert demos.

ArduinoESP32
RM3-RM12View guide