CAN Bus Multi-Node Network Kit with Arduino Nano + DHT22
Build a Multi-Node CAN Bus Sensor Network with Arduino Nano & DHT22
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit lets you construct a miniature automotive-grade data network. Two Arduino Nano nodes, each equipped with a DHT22, transmit environmental readings over an MCP2515 CAN controller at 500kbps. A third master node collects and displays both sensor values in real time on an OLED, just like an ECU dashboard. You’ll gain hands-on understanding of the CAN protocol that powers vehicle subsystems, industrial automation, and smart factories.
What You'll Build
You’ll wire three independent Arduino Nano stations on separate breadboards, configure the CAN bus with proper termination, and program each node to broadcast its sensor data with unique message IDs. The master node decodes these messages and updates the OLED continuously. By the end, you’ll have a distributed sensor network ready for deployment in a vehicle diorama, greenhouse monitor, or home automation setup.
What You'll Learn
- Implement CAN 2.0B protocol using MCP2515 modules and SPI communication
- Design multi-node message filtering and priority-based arbitration
- Integrate DHT22 humidity and temperature sensors with Arduino for real-time data capture
- Debug CAN bus signal integrity with proper termination and decoupling capacitors
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 3 |
| MCP2515 CAN Module | 3 |
| DHT22 Temperature/Humidity Sensor | 2 |
| 0.96-inch OLED Display | 1 |
| 100nF Ceramic Capacitor | 15 |
| 400-point Breadboard | 3 |
| Male-to-Male Jumper Wires | 35 |
| 9V Battery Snap Connector | 3 |
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 fits CBSE Class 11-12 students exploring automotive electronics, B.Tech ECE/EEE candidates building projects for Smart India Hackathon, and ATL Tinkering Lab innovators creating vehicle telematics prototypes. If you’re at IIT, NIT, VIT, or BITS Pilani working on embedded networking or IoT assignments, the plug-and-play nature of this kit accelerates your project timeline.
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 inside the box to launch your AI companion, which has step-by-step troubleshooting for this exact CAN bus network. You can also reach us on WhatsApp for human support within hours.
Do I need a CAN bus analyzer to debug the network?
No, the included decoupling capacitors and pre-configured termination ensure a stable bus. The AI companion guides you through using the Arduino Serial Monitor to check each node’s transmissions and verify correct message IDs.
Can I add more sensor types or expand the network beyond three nodes?
Yes, CAN 2.0B supports up to 2032 message IDs. Simply connect additional MCP2515 modules and sensors using the same wiring scheme. The AI companion explains how to assign new addresses and update the master display code.
What if nodes stop communicating at 500kbps?
Check that all three nodes share a common ground and that the bus termination resistors are correctly placed. The AI companion includes a systematic checklist for CAN signal troubleshooting, starting with baud rate synchronization and transceiver power.
Three MCP2515 CAN nodes exchange sensor data at 500kbps. One master node displays all readings.
What's in this kit
- Arduino Nano x3
- MCP2515 CAN Module x3
- DHT22 x2
- 0.96in OLED
- 100nF Caps x15
- 400-pt Breadboard x3
- M-M Wires x35
- 9V Battery Snap x3
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