PWM Signal Generator Kit with Arduino Uno + LED
PWM Signal Generator Kit with Arduino Uno – Visualise and Control Pulse Width Modulation in Real Time
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine turning one knob to sweep a signal’s frequency from a slow 1 Hz blink to a 100 kHz ultrasonic hum, while another knob pushes the duty cycle from 0% (LED off) to 100% (full brightness). This kit puts that tactile, visual control on your workbench, with an OLED screen that instantly confirms every change – no multimeter or oscilloscope needed to see what your Arduino is doing.
What You'll Build
You will assemble and program a dedicated pulse-width modulation instrument. The two potentiometers let you dial exact frequency and duty cycle values. A bright 0.96-inch OLED panel updates live, so you always know the signal’s parameters. Along the way, a connected LED gives you a direct visual readout – watch it pulse, dim, or strobe exactly as the numbers change.
What You'll Learn
- Program Arduino Uno to generate PWM on any pin using timers and interrupts for wide frequency range
- Read dual analog potentiometer values and map them accurately to 1 Hz–100 kHz and 0–100% duty cycle
- Interface a 0.96-inch I2C OLED and display real-time sensor and parameter data
- Grasp the fundamentals of pulse-width modulation and its role in LED dimming, motor control, and signal generation
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| 0.96in OLED | 1 |
| 10kΩ Potentiometer | 2 |
| 4.7kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 15 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
CBSE Class 11–12 students exploring microcontrollers and signal concepts, first-year B.Tech ECE/EEE undergrads who need a hands-on PWM lab, and ATL Tinkering Lab facilitators running maker workshops will find this kit immediately engaging. Its gentle learning curve also suits young hobbyists age 10+ looking for a rewarding Arduino starter project beyond blinking an LED.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code or drop a message on WhatsApp. The AI companion knows this circuit cold, and our team can step in with personalised tips within hours.
Can I adjust frequency and duty cycle smoothly in real time?
Absolutely. The potentiometers are read continuously. Turn the frequency knob and watch the OLED refresh instantly – no lag, no reboots – to see your PWM signal update on the LED in real time.
Do I need to write the code from scratch?
No. We provide full, well-commented Arduino sketch code that sets up timers, reads the pots, and drives the OLED. You’ll learn by tweaking it – but the working generator is just an upload away.
Is this kit enough to test other circuits that need a PWM input?
Yes. Once built, you can use the Arduino’s output pin as a clean PWM signal source for breadboard experiments. The OLED displays the exact frequency and duty cycle, so you know precisely what you’re feeding into your circuit.
Potentiometers set frequency 1Hz to 100kHz and duty cycle 0 to 100%. OLED shows parameters live.
What's in this kit
- Arduino Uno R3
- 0.96in OLED
- 10kΩ Potentiometer x2
- 4.7kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x15
- 9V Battery Snap
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items