Connectivity
Module Design
Connectivity Module Design & Certification Services
Develop Reliable Wireless Modules for Global Markets
Modern electronic devices demand seamless connectivity — whether it's Bluetooth in wearables, Wi-Fi in smart home hubs, or NB-IoT in utility meters. At Promwad, we offer end-to-end services for connectivity module development, from RF design and embedded software to pre-certification testing and support for global compliance.
Our team works with both standalone modules and integrated wireless systems, optimising for power, size, and interoperability. Whether you're building a new product or upgrading an existing one, we help you get to market faster — with confidence in your wireless performance and certification readiness.
What We Offer
Custom Wireless Module Development
- PCB design and layout for embedded RF (2.4 GHz, 5 GHz, sub-GHz)
- Antenna selection, tuning, and integration
- RF matching network design and impedance control
- Chip-down design for optimal performance and cost-efficiency
Embedded Software & Protocol Stack Integration
- Bluetooth (Classic + LE), Wi-Fi (802.11n/ac/ax), Zigbee, Thread, Matter
- NB-IoT, LTE-M, UWB, LoRaWAN, GNSS
- Custom drivers, bootloaders, firmware OTA
- Middleware integration for cloud connectivity and OTA updates
Certification & Pre-Compliance Support
- Support for CE, FCC, IC, TELEC, RED, GCF
- EMC/EMI design reviews and test planning
- Design validation against regulatory limits using simulation tools
- Coordination with certification labs and test houses
Design Optimisation
- Power and thermal profiling for battery-operated modules
- Miniaturisation and integration into complex enclosures
- Multi-radio coexistence strategies
- Antenna efficiency tuning and enclosure shielding analysis
Wireless Technologies We Support
Bluetooth LE
Frequency: 2.4 GHzApplication Domains: Wearables, audio, medical devices
Wi-Fi 4/5/6
Frequency: 2.4/5 GHzApplication Domains: Home automation, streaming, access points
Zigbee / Thread
Frequency: 2.4 GHzApplication Domains: Smart home, building automation
LTE-M / NB-IoT
Frequency: Sub-GHzApplication Domains: Smart meters, asset tracking
UWB
Frequency: 6–8 GHzApplication Domains: Automotive access, indoor positioning
LoRaWAN
Frequency: Sub-GHz (868/915 MHz)Application Domains: Agriculture, remote sensing
Our Development Workflow
Wireless Technologies We Support
Connectivity Audit & Redesign
Have an underperforming or non-compliant wireless subsystem? We provide: RF design audits and root cause analysis; tuning and re-layout services; pre-scan EMI measurements and shielding recommendations
Integration of Certified Modules
Not every product needs a chip-down design. We support: selection and integration of pre-certified modules; mechanical and RF compatibility checks; software integration and firmware development
Why Promwad
20+ years of experience in wireless electronics and embedded design
In-house expertise in both hardware and software integration
Strong RF and regulatory engineering capabilities
Flexible engagement: turnkey, co-development, or on-demand RF consulting
Experience with consumer, automotive, telecom, and medical-grade wireless devices
Ready to Launch Your Connected Device?
Let’s discuss your next wireless product!
Drop us a line about your project! We will contact you today or the next business day. All submitted information will be kept confidential.