OpenSourceSDRLab ESP32 Extension Board - PortaPack Mayhem External Module Developer Kit "MDK"
This is the Developer Kit External Module for the Portapack H4M. The firmware of MDK has been flashed into the MDK according to the following link.
https://github.com/portapack-mayhem/mayhem-mdk/blob/main/README.md
Built for HackRF SDR and Wireless ProjectsThe ESP32-MDK is a powerful microcontroller board built around the ESP32 dual-core processor, making it an excellent companion for hackrf sdr applications. Whether you're building wireless signal controllers or integrating with HackRF One & Portapack, this board provides the computing resources and I/O options needed for custom SDR development.Compact, Reliable, and Fully ExpandableIts compact size and stable performance make the ESP32-MDK ideal for sdr radio setups where space and reliability matter. With support for UART, SPI, I2C, and GPIO expansion, users can easily pair this board with sdr receivers, displays, or signal output modules.Ideal for Prototyping and SDR Sales UseWhether you're testing new RF signal workflows or creating products for the sdr sales market, this board helps you move fast without sacrificing stability. Developers can create tools that extend the capabilities of HackRF Portapack or build standalone systems powered by ESP32.Open Firmware and Seamless IntegrationThe ESP32-MDK supports open-source firmware and is compatible with common development platforms, giving engineers the flexibility to design and deploy innovative solutions within hackrf portapack ecosystems or other RF systems. Its robust connectivity makes it a flexible tool for many sdr receiver scenarios.Product Advantages
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Compatible with HackRF One & Portapack
Designed to pair with hackrf sdr tools for custom SDR workflows and portable sdr radio systems.
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Built on Powerful ESP32 Core
Dual-core processor with Wi-Fi and Bluetooth support for responsive, wireless sdr receiver control and automation.
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Flexible Interface Expansion
Easily integrate with other SDR components via UART, SPI, I2C, and GPIO — perfect for hackrf portapack customization.
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Ideal for SDR Developers and Makers
Lightweight, reliable, and developer-friendly — the ESP32-MDK is a great fit for sdr sales use, classroom projects, or prototyping labs.
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Supports Open-Source Development
Work within trusted ecosystems to build smarter SDR tools that enhance your hackrf sdr platform or add standalone control.
About Us – OpenSourceSDR Lab
A precision-focused manufacturing partner in smart displays and IoT hardware.
Core Manufacturing and Quality Capabilities
OpenSourceSD Lab specializes in the research, design, and manufacturing of smart LCD display modules, e-paper displays, and embedded IoT devices. With a complete in-house engineering team, we offer end-to-end services — from schematic design and PCB layout to firmware development and system integration. Our ISO 9001:2015-certified facility ensures consistent product quality, traceability, and compliance with international standards.
Production Capacity and Technical Strength
Our Shenzhen-based factory is equipped with advanced SMT production lines, reflow soldering equipment, and automated optical inspection (AOI) systems. We maintain a monthly output capacity of 300,000 units, and have successfully delivered over 1.2 million smart display solutions worldwide. These capabilities allow us to support both low-volume prototyping and high-volume manufacturing, with flexible lead times and responsive engineering support.
Sustainable Manufacturing Practices
We are committed to minimizing our environmental footprint through responsible production. All components are RoHS-compliant, and we continuously optimize our energy and material usage through lean manufacturing principles. We also aim to reduce waste across the product lifecycle by designing for reliability and repairability.
Transparent and Collaborative Customer Workflow
Our customer engagement process is designed for clarity, speed, and technical alignment. We begin with a detailed project consultation, followed by rapid prototyping and iterative engineering feedback. Once validated, we move to scalable production while maintaining full transparency on timelines, costs, and logistics. Our bilingual project managers ensure seamless communication throughout the development cycle.
Global Service Capabilities
Serving clients across over 30 countries — including North America, Europe, and Asia-Pacific — we are experienced in global compliance, shipping logistics, and multilingual technical support. We partner with reliable international couriers and freight forwarders to ensure timely and safe delivery of goods. Whether you're a startup, system integrator, or global brand, we provide localized support with global reach.
Let's build smarter, more reliable devices — together.
Contact us to explore tailored hardware solutions built to meet your market’s demands.
FAQ
Who are we?
We are your SDR sourcing Office in China. OpenSourceSDRLab is a reliable and trustworthy sourcing lab in China.
We focus on Software Defined Radio developing & educational products, and we can ONE-STOP SDR device sourcing services from sourcing, product development, factory production, QC/inspection etc.We have been doing this business for 7+ years. The core members of our team are engineers who have graduated with degrees in communication engineering and electronic information, and who have a keen interest in SDR technology. We specialize in SDR products, particularly those that support GNU Radio. We have established long-term partnerships with PCB manufacturing and patch production companies, and possess a comprehensive hardware debugging and RF testing environment. Our contributions to the community have been significant, as we have developed a series of popular products, provided a wealth of usage documentation, tools, and sample programs, thereby playing a crucial role in advancing the development and popularization of open source SDR technology.
How can we guarantee quality?
We follow a rigorous quality control system certified under ISO 9001:2015. Our factory uses advanced inspection technologies such as AOI, ICT, and aging tests to ensure each unit meets strict performance and reliability standards.
What can you buy from us?
- Smart TFT/IPS LCD modules with optional capacitive touch
- E-paper displays
- Custom IoT hardware
- Embedded control systems and drivers
Why should you buy from us and not other suppliers?
We are not just a contract assembler — we are a full-stack hardware development partner. With in-house engineering, firmware, and PCB design, we can offer deeper customization, better cost control, and stronger IP protection. Our clients benefit from rapid prototyping, flexible production, and long-term technical support.
What services can we provide?
- Hardware circuit and PCB design
- Firmware development and system integration
- Custom display tuning (UI, brightness, interface, touch)
- Prototyping and small-batch production
- Full-scale manufacturing
- Global logistics and post-sales technical support
Ready to upgrade your HackRF Portapack setup?
Get the ESP32-MDK today and unlock smarter, wireless control for your SDR projects. Perfect for makers, hobbyists, and developers — order now and bring your signal analysis to the next level.
