Simultaneous Data Logger and Live TFT Dashboard
Simultaneous Data Logger and Live TFT Dashboard Kit – Dual-Core Arduino Portenta H7 for High-Speed Data Capture and Real-Time Charting
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 a professional environmental monitoring rig that captures temperature and humidity from two DHT22 sensors plus barometric pressure from a BMP280 – all while drawing a live, flicker-free trend graph on a vibrant 2.4-inch TFT. This kit turns that vision into a functioning instrument, exploiting the Portenta H7’s M7 core to stream 500Hz sensor readings to a microSD card, while the M4 core independently refreshes the display. No lag, no dropped samples – true simultaneous operation, backed by a board and firmware architecture that industrial data loggers rely on.
What You'll Build
You will assemble and program a dual-core data acquisition system that writes timestamped sensor values to a CSV file on an SD card at exactly 500 samples per second, while a real-time line chart updates on the TFT without a single glitch. The final unit can serve as a standalone environmental logger or a live dashboard for experiments – plug it in, and see pressure trends build as you breathe near the sensor or track temperature shifts across a room. Every part is included, down to the buck converter that safely powers the Portenta from a 5V PSU.
What You'll Learn
- Programming the Portenta H7’s dual Cortex-M7 and M4 cores using Arduino and FreeRTOS-based Remote Procedure Calls (RPC)
- Implementing high-frequency SD card logging with ring buffers to avoid write stalls
- Driving an ILI9341 TFT via SPI with DMA to maintain smooth screen updates without burdening the data core
- Designing a clean power distribution circuit with an LM2596 buck converter to protect sensitive analogue readings
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta H7 | 1 |
| Portenta Breakout Board | 1 |
| DHT22 | 2 |
| BMP280 | 1 |
| MicroSD Module | 1 |
| 2.4in TFT ILI9341 | 1 |
| LM2596 Buck Converter | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| 5V 3A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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
This kit is built for final-year B.Tech ECE and EEE students tackling data acquisition projects, Smart India Hackathon teams needing a reliable real-time monitoring solution, and NIT/IIT/VIT/BITS researchers working on environmental or industrial sensor arrays. If you have solid Arduino experience but want to break into dual-core embedded development with a hands-on project, this 6 to 8-hour build will give you professional-grade firmware patterns that translate directly to STM32CubeIDE and industrial applications.
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 on the box to open your AI companion; it references every wire connection and code block for this kit. You can also send a photo via WhatsApp and a Compoden engineer will respond within hours.
Can the M7 core truly log at 500Hz while the M4 core updates the TFT?
Yes. The pre-loaded firmware uses a dedicated ring buffer and RPC to decouple the two cores entirely. The M7 never waits for the display, so the 2ms logging interval is met consistently, and the M4 renders the chart using the latest buffer snapshot.
I am comfortable with Arduino but new to dual-core – is the code ready to go?
Absolutely. The AI companion walks you through the architecture, and the uploaded sketch is heavily commented. You will understand how the two cores communicate without having to write every line from scratch, yet you can modify the sensor set easily.
What if I want to add GPS or a different sensor later?
The Prototype Board has free I/O and the firmware’s modular structure lets you swap or add sensors. Your AI companion can guide you through modifying the data pipeline and screen layout to include new values.
M7 logs sensor data to SD at 500Hz. M4 renders live chart on TFT without any lag or dropped samples.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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