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Projects

28 projects across 4 kits — each with its parts list, priced loose, and one button that puts them all in your cart.

Arduino UNO Sensor & Output Starter Kit - LEDs, Buzzer, Servo, Ultrasonic & LCD

7 projects · 10 parts · AED 85.00 as one kit View the kit →
Basics Beginner 01

Lesson 1: LED Basics & Brightness

Blink an LED, then fade it with a knob. Learn which LED leg is +, why every LED needs a resistor, and how the UNO dims a light. Do Start here first.

Uses
UNO R3 400 tie-point breadboard jumper wires yellow LED resistor assortment 10K potentiometer
Parts, guide & add to cart →
Basics Beginner 02

Lesson 2: Traffic Light

Three LEDs run the red, red + yellow, green, yellow cycle of a real traffic light. Learn timing with delay() and write your own function.

Uses
UNO R3 400 tie-point breadboard jumper wires red/yellow/green LEDs resistor assortment
Parts, guide & add to cart →
Basics Beginner 03

Lesson 3: Buzzer Patterns

The buzzer plays a slow beep, a fast alarm and SOS in Morse code. Type 0-3 in the Serial Monitor to choose: your first commands from the computer.

Uses
UNO R3 active buzzer module jumper wires
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Sensing Beginner 04

Lesson 4: Ultrasonic Distance

Measure distance with sound. The HC-SR04 times an echo and the UNO turns it into centimetres, drawn live in the Serial Plotter.

Uses
UNO R3 HC-SR04 breadboard jumper wires
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Motion Beginner 05

Lesson 5: Servo & Knob

Turn the knob and the servo arm follows; leave it for 4 seconds and the servo sweeps by itself. Learn map(), libraries and position control.

Uses
UNO R3 SG90 servo 10K potentiometer breadboard jumper wires
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Display Beginner 06

Lesson 6: LCD Display

Put your name and a seconds counter on the 16 × 2 LCD. Wire a display with 6 signal wires and set the contrast with the knob. Check your LCD has its pins fitted.

Uses
UNO R3 LCD1602 10K potentiometer resistor assortment breadboard jumper wires
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Sensing Beginner 07

Lesson 7: Parking Assistant & Sensor Dashboard

The final build uses every part: LEDs show the zone, the buzzer warns when too close, the LCD shows the distance and the servo swings like a gauge. A separate 5V servo s…

Uses
UNO R3 400 tie-point half-size breadboard jumper wires resistor assortment red/yellow/green LEDs active buzzer module HC-SR04 SG90 servo 10K potentiometer LCD1602
Parts, guide & add to cart →

Arduino Ultrasonic Distance & Parking Learning Kit

9 projects · 7 parts · AED 85.00 as one kit View the kit →
Sensing Beginner 01

Lesson 1: Measure Distance with Sound

Wire the HC-SR04 and read distances in the Serial Monitor. Compare them with a ruler to see how accurate the sensor really is. Do Start here first.

Uses
UNO R3 HC-SR04 400 tie-point breadboard jumper wires a ruler and a flat card or book (yours)
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Basics Beginner 02

Lesson 2: Traffic-Light Distance Indicator

Green, yellow and red LEDs show how close an object is: green 50 cm and more, yellow 20-49 cm, red under 20 cm. Yellow blinks when there is no echo.

Uses
UNO R3 HC-SR04 red/yellow/green LEDs resistor assortment 400 tie-point breadboard jumper wires
Parts, guide & add to cart →
Automation Beginner 03

Lesson 3: Parking Beeper

Like a car's parking sensor on your desk: slow beeps under 20 cm and fast beeps under 10 cm, while the LEDs show the zone. A learning model only.

Uses
UNO R3 HC-SR04 active-buzzer module red/yellow/green LEDs resistors breadboard jumper wires
Parts, guide & add to cart →
Sensing Beginner 04

Lesson 4: Blind Zone & No Echo

Find the sensor's limits: too close, too far and off to the side. The LEDs and running counts show good readings, "too close" and "no echo".

Uses
UNO R3 HC-SR04 red/yellow/green LEDs Serial Monitor the wiring from Lesson 3
Parts, guide & add to cart →
Sensing Beginner 05

Lesson 5: Calibrate Your Sensor

Type the ruler distance, get 10 readings back: average, error, minimum, maximum and spread. Paste the rows into a spreadsheet and find your sensor's accuracy.

Uses
UNO R3 HC-SR04 a ruler or tape measure a flat card a spreadsheet (optional)
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Sensing Beginner 06

Lesson 6: Angles & Surfaces

Why does the sensor sometimes miss things right in front of it? Fire 20 pings at flat, soft, round, thin and tilted targets and count how many echoes come back.

Uses
UNO R3 HC-SR04 a flat card a cushion or jumper a bottle a pencil (yours)
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Sensing Intermediate 07

Lesson 7: Smoothing Noisy Readings

Raw, averaged and median distance on one live graph. See how an average smooths but lags, and how a median ignores sudden spikes.

Uses
UNO R3 HC-SR04 a computer with the Serial Plotter your hand or a book
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Display Intermediate 08

Lesson 8: OLED Distance Meter

A pocket distance meter: the reading in big numbers on the 0.96" OLED, the zone at the top, and a bar that grows to 100 cm. Installs your first libraries.

Uses
UNO R3 HC-SR04 0.96" OLED display (I2C) breadboard jumper wires
Parts, guide & add to cart →
Automation Intermediate 09

Lesson 9: Everything Together - Distance Lab

All the parts in one sketch: zones on the LEDs, slow and fast beeps, a median filter, the OLED, and commands like test and sound off. Ends with a battery-powered demo.

Uses
UNO R3 HC-SR04 active-buzzer module red/yellow/green LEDs resistors 0.96" OLED breadboard jumper wires 9V battery holder (battery not included)
Parts, guide & add to cart →

ESP32 Fall-Detection Learning Prototype

5 projects · 6 parts View the kit →
Basics Beginner 01

Lesson 1: Button & OLED Countdown

A button starts a 20-second countdown on the OLED and a second press cancels it - the user-interface half of the fall detector, with no motion yet. Do Start here first.

Uses
ESP32U DIY-003 OLED one DIY-158 tactile switch DIY-212 jumper pack DIY-295 breadboard
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Sensing Beginner 02

Lesson 2: Tilt Angle from a Baseline

The GY-521 learns which way is "upright" in 3 seconds, then the OLED shows how far you have tilted it from there - and flags 55°, the limit the main build uses.

Uses
ESP32U GY-521 DIY-003 OLED DIY-158 tactile switch DIY-212 jumper pack DIY-295 breadboard
Parts, guide & add to cart →
Sensing Intermediate 03

Lesson 3: Motion Data Lab

Watch total g-force on a live graph and count every impact (above 2.5 g) and free fall (below 0.45 g). Choose the main build's limits from your own data.

Uses
ESP32U GY-521 DIY-003 OLED DIY-158 tactile switch DIY-212 jumper pack DIY-295 breadboard a foam pad or cushion (yours)
Parts, guide & add to cart →
Basics Beginner 04

Lesson 4: Buzzer Alert

Add the buzzer module (an optional add-on), powered from 3V3: an alert pattern the button acknowledges, with a 15-second time-out so it never runs for ever.

Uses
ESP32U DIY-016 active buzzer module DIY-003 OLED DIY-158 tactile switch DIY-212 jumper pack DIY-295 breadboard
Parts, guide & add to cart →
Automation Intermediate 05

Lesson 5: Fall-Detection Learning Prototype

The main build: a jolt or drop followed by staying tipped over starts a 20-second countdown with beeps; the button cancels it, or a local alert sounds. A bench experimen…

Uses
ESP32U GY-521 DIY-003 OLED DIY-158 tactile switch DIY-016 buzzer module DIY-212 jumper pack DIY-295 breadboard a padded test platform (yours)
Parts, guide & add to cart →

ESP32 Plant Monitoring Learning Kit

7 projects · 6 parts View the kit →
Sensing 01

Calibrated plant-monitoring lab

Build the reviewed main project, capture four local calibration endpoints, and stream soil, water, temperature, humidity, pressure, and status data to Serial Monitor. Th…

Uses
ESP32U DIY-002 capacitive soil sensor DIY-025 water sensor DIY-018 BME280 full-size breadboard jumper wires
Parts, guide & add to cart →
Sensing 02

Soil-moisture calibration study

Compare raw ADC readings across documented dry, damp, and wet samples of one soil type. Repeat probe depth and compaction, graph the results, and explain why the percent…

Uses
ESP32U DIY-002 capacitive soil sensor breadboard jumper wires user-supplied dry and wet soil references
Parts, guide & add to cart →
Sensing 03

Short-duration water-level experiment

Mark several safe test depths, energize only long enough to record stable readings, then power down, rinse, and dry the tracks. Study repeatability and corrosion risk; d…

Uses
ESP32U DIY-025 conductive water sensor breadboard jumper wires user-supplied shallow non-metallic container and clean water
Parts, guide & add to cart →
Basics 04

BME280 room environment station

Measure temperature, relative humidity, and pressure near a plant while keeping the module dry and away from direct sun, water, fingers, and warm electronics. Compare se…

Uses
ESP32U DIY-018 BME280 breadboard jumper wires
Parts, guide & add to cart →
Basics 05

Serial data logger and charts

Capture the sketch's machine-readable DATA lines, import them into a spreadsheet, and chart how the references change after watering or as a test sample dries. Add times…

Uses
Completed main build computer USB data cable spreadsheet software
Parts, guide & add to cart →
Basics 06

Optional audible-alert investigation

Characterize the buzzer's current, trigger threshold, and active level before choosing a transistor or driver. Write and compile a separate alert sketch only after the i…

Uses
Optional DIY-016 5 V buzzer ESP32U and additional user-supplied driver/protection parts selected after measurement
Parts, guide & add to cart →
Network 07

Future Wi-Fi dashboard

Add networking only after the USB/Serial build is stable. Keep credentials out of shared code and review privacy, reconnection behavior, power, enclosure, and unattended…

Uses
Completed local main build and user-supplied Wi-Fi network
Parts, guide & add to cart →
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