HC-12 Long Range Serial Link Kit with Arduino Nano + LED
Open this project in the Soldr app → What is Soldr.ai → wiring, code and test steps for exactly these parts
HC-12 Long Range Serial Link Kit with Arduino Nano + LED — a beginner-level kit for kids.
HC‑12 Arduino Nano Kit: Wireless Serial Communication Up to 600 Metres – No LoRa Required
Every part needed, pre‑tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 1-5 days.
Imagine two Arduino Nanos chatting wirelessly across a school campus, a farm field, or even your home – no internet, no Bluetooth, just a solid 600‑metre radio link. This kit gives you exactly that: a pre‑tested pair of HC‑12 433MHz transceivers that turn any serial data into a long‑range wireless pipeline. Build a remote weather station, a wireless alarm, or a simple text messenger – all with plug‑and‑play simplicity, just like a wired UART connection.
What You'll Build
Two battery‑powered nodes that exchange serial data over distances up to 600 metres. The transmitter node can send sensor readings or typed messages; the receiver node instantly displays the incoming data on the included 0.96‑inch OLED, giving you a real‑time view of your wireless link.
What You'll Learn
- Configure the HC‑12 module’s serial parameters (baud rate, channel, power level) via AT commands.
- Transmit and receive serial data wirelessly using Arduino’s SoftwareSerial library.
- Interface an I2C OLED display to show received messages and signal strength.
- Build battery‑powered, standalone wireless nodes with voltage regulation and minimal power consumption.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 2 |
| HC-12 433MHz Module | 2 |
| 433MHz Antenna | 2 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 2 |
| M-M Wires | 20 |
| 9V Battery Snap | 2 |
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
This kit is ideal for CBSE Class 11‑12 students building physics practicals, B.Tech ECE/EEE students prototyping wireless communication projects, and ATL Tinkering Lab participants exploring radio frequency data transfer. It’s also a favourite among Smart India Hackathon teams who need a reliable point‑to‑point serial link without the overhead of LoRaWAN or WiFi.
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?
Open the AI companion by scanning the QR code on the box; it will guide you step by step. You can also reach us directly on WhatsApp for a human touch.
Can I increase the range beyond 600m?
Yes. In open rural areas, the HC‑12 can reach up to 1 km with higher baud rates and external directional antennas. For typical urban use, the included whip antennas reliably give you 500‑600 metres.
Does this kit include a programming cable?
The Arduino Nanos require a mini‑USB cable for programming, which is not in the box. Most Indian households already have one from old cameras or power banks; if not, you can add it while checking out.
Can I use this kit to send sensor data from a remote field?
Absolutely. The receiver node can display sensor readings on the OLED or pass them to a computer via USB. Many students use this as the base for an agricultural IoT project or remote weather station.
HC-12 433MHz transceiver sends serial data between two Arduinos over 600m range without LoRa complexity.
What's in this kit
- Arduino Nano x2
- HC-12 433MHz Module x2
- 433MHz Antenna x2
- 0.96in OLED
- 10kΩ Resistors x5
- 400-pt Breadboard x2
- M-M Wires x20
- 9V Battery Snap x2
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 1-5 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