# LuckFox Core3506

> Tiny 32x32mm Rockchip RK3506B core module with tri-core ARM Cortex-A7 + Cortex-M0, 512MB DDR3L, optional 8GB eMMC, dual 100M Ethernet RMII, MIPI DSI 2-lane, 4-ch ADC, CAN bus, and 120-pin castellated holes. Supports Linux, RTOS, and bare-metal via AMP.

## Quick Facts

- **Brand:** LuckFox
- **Board Type:** module
- **Price:** ~$8.99
- **CPU:** ARM Cortex-A7 3x @ 1.2GHz + Cortex-M0 co-processor, VFP
- **CPU Architecture:** ARM Cortex-A7
- **CPU Cores:** 3
- **RAM:** 512MB DDR3L
- **Flash:** 8GB eMMC (optional)
- **Power:** 3.3V via carrier board
- **Operating Voltage:** 3.3V
- **Dimensions:** 32 × 32mm

## Connectivity

- **Ethernet:** 2x 10/100 Mbps RMII

## Use Cases

- system-on-module
- industrial-control
- iot

## Components

- **RK3506** (soc): Rockchip RK3506B 22nm SoC with 3x Cortex-A7 @ 1.2GHz + Cortex-M0, dual 100M Ethernet RMII, MIPI DSI, 2D graphics, AMP multi-system support. — [Datasheet](https://openhardware.directory/r?to=http%3A%2F%2Fopensource.rock-chips.com%2Fimages%2F5%2F51%2FRockchip_RK3506G2_Datasheet_V1.3-20250811.pdf&ref=openhardware.directory&product=waveshare-luckfox-core3506&source=md-export)

## Description

## Overview

The LuckFox Core3506 is an ultra-compact 32x32mm system-on-module built around the Rockchip RK3506B SoC, featuring a tri-core ARM Cortex-A7 processor at 1.2GHz with an ARM Cortex-M0 co-processor for real-time tasks. The 22nm process node delivers low power consumption while supporting Linux, RTOS, and bare-metal firmware simultaneously through the chip's AMP (Asynchronous Multi-Processing) architecture.

The module packs 512MB DDR3L RAM with optional 8GB eMMC storage, exposed through 120 castellated holes for soldering onto custom carrier boards. It provides 32 Rockchip Matrix IO pins that can be multiplexed to support UART, SPI, I2C, CAN, PWM, and I2S interfaces. Connectivity includes dual 10/100Mbps Ethernet RMII interfaces, two USB 2.0 OTG ports, and a 2-lane MIPI DSI output supporting displays up to 1280x1280 at 60fps. A 4-channel ADC and analog differential microphone input round out the peripheral set.

Designed as a building block for custom products, the Core3506 is ideal for industrial HMI panels, IoT gateways, intercom systems, and smart home terminals where developers need a capable Linux-ready compute core in a minimal footprint. The module simplifies hardware development by providing the complete compute subsystem -- CPU, RAM, storage, and power management -- in a solderable package.

## Where to Buy

- [Waveshare](https://openhardware.directory/r?to=https%3A%2F%2Fwww.waveshare.com%2Fproduct%2Fluckfox%2Fboards-modules%2Fcore3506.htm&ref=openhardware.directory&product=waveshare-luckfox-core3506&source=md-export) — 8.99

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.waveshare.com%2Fproduct%2Fluckfox%2Fboards-modules%2Fcore3506.htm&ref=openhardware.directory&product=waveshare-luckfox-core3506&source=md-export)
- [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fwiki.luckfox.com%2FCore3506%2F&ref=openhardware.directory&product=waveshare-luckfox-core3506&source=md-export)
- [datasheet](https://openhardware.directory/r?to=http%3A%2F%2Fopensource.rock-chips.com%2Fimages%2F5%2F51%2FRockchip_RK3506G2_Datasheet_V1.3-20250811.pdf&ref=openhardware.directory&product=waveshare-luckfox-core3506&source=md-export)

## Images

![LuckFox Core3506](https://nbg1.your-objectstorage.com/openhardware-directory/entities/waveshare-luckfox-core3506/154e9c99a8d1.jpg)
![LuckFox Core3506](https://nbg1.your-objectstorage.com/openhardware-directory/entities/waveshare-luckfox-core3506/ce970cdc7e1f.jpg)
![LuckFox Core3506](https://nbg1.your-objectstorage.com/openhardware-directory/entities/waveshare-luckfox-core3506/f641a9e59885.jpg)

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