Schematic Capture & PCB Design
- Schematic capture and PCB design using industry EDA suites
- High-speed complex PCBs
- Digital & analog (mixed-signal) PCBs
Altium DesignerEagleKiCad
Expertise in Hardware, Firmware & Software Development
CIRHEX
Engineered · From Silicon to Software
An engineering solutions company working in various fields of engineering. Experienced engineers getting your tasks done within time, with quality and affordable price!
Core Services Matrix
Three disciplines. One pipeline.
From bare copper to cloud dashboards — every capability below is delivered in-house by experienced CIRHEX engineers.
High-Speed & FPGA Boards
- PCBs with FPGAs and processors
- High-bandwidth memory and interface routing
FPGAProcessorsDDR2DDR3PCIeHDMIEthernetUSB 3.0
Protocol Circuit Design
- PCBs built around every mainstream serial & industrial protocol
SPII2CRS232RS485RS422CANUSBUART
RF & Wireless Layout
- Design layout for cellular, Wi-Fi and low-power radio modules
- RF PCBs with Rogers & FR-4 with complete impedance calculation
4G/LTEWi-Fi ModuleBluetoothGSM/GPSLoRaZigbeeRogersFR-4
Signal Integrity Engineering
- Differential signal routing
- Transmission line routing
- Impedance calculation & stack-up building
- EMI/EMC compliant design with knowledge of EMI/EMC & CE certifications
Power & Motor Electronics
- Power electronics circuit design
- Motor control circuit board design
- Multi-stack boards enclosed in casings
IoT & Niche Electronics
- IoT PCBs with NB-IoT processor chip — nRF9160
- Biomedical-related sensor circuit board design
- MEMS / IMU sensor circuit board design
- NFC, RFID and biometric circuit board design
- Shields for all Arduino & Raspberry Pi boards
NB-IoTnRF9160NFCRFIDBiometricMEMS/IMU
Programming Languages
- Exceptional embedded programming skills across the full C-family and Python
C++CC#Python
FPGA & MCU Architectures
- FPGA design using Verilog / VHDL (Xilinx ISE)
- Boards: ARM, TI, ST, Microchip, Atmel, DSP, Arduino
VerilogVHDLXilinx ISEARMTISTMicrochipAtmelDSPArduino
IDEs & Ecosystems
- Daily-driver fluency across the professional embedded toolchain
STM32CubeMXKeilEclipseSeggerZephyrAtmel StudioArduinoNode-REDnRF Connect
Single Board Computers
- Linux-class embedded platforms for gateways, HMIs and edge compute
Raspberry Pi (Raspbian)BeagleBoneNanoPi
Interfaces & Comm Modules
- Strong with UART, I2C, SPI, BLE, BT, GSM/4G/LTE/GPRS/GPS, ZigBee, LoRaWAN
- Strong with BLE HM10, HC05, ESP8266, ESP32, DA14580, nRF52, nRF9160
- Strong with RS232, RS485, RS422, CAN, USB 2.0, USB 3.0
BLE HM10HC05ESP8266ESP32DA14580nRF52nRF9160
Automotive OBD Protocols
- On-board diagnostics stacks implemented at the wire level
SAE J1850 PWMSAE J1850 VPWISO 14230-4 (KWP2000)ISO 15765-4
IoT & Cloud Connectivity
- IoT development using MQTT
- Expert in AWS IoT Core and Azure IoT Core
- IoT development in Node-RED environment on Raspberry Pi (Raspbian)
- Experience in nRF Connect
MQTTAWS IoT CoreAzure IoT CoreNode-RED
App Platforms
- Android app development
- Windows app development
- iOS development
AndroidWindowsiOS
Web Ecosystems & CMS
- WordPress plug-in development + theme customization
- Custom content management systems
- E-commerce platform builds
WordPressMagentoOpenCartWooCommerceYii
Core Languages & Integration
- API integration
- Web scraping
KotlinJavaC#C++API IntegrationWeb Scraping
Product Lifecycle & Manufacturing
From concept to the factory floor.
CIRHEX doesn't stop at the design file — we carry your product through mechanical design, prototyping and production handoff.
Mechanical Design
Enclosure design, 3D modeling and premium rendering in SolidWorks — fitting your electronics inside manufacturable, presentable housings.
Prototyping & DFM
Physical product prototyping and comprehensive preparation for manufacturing — validated hardware, ready for volume production.
Fabrication Support
Advanced reverse engineering of PCBs alongside complete technical support and consultancy for PCB fabrication and assembly.
Regulatory Standards & Trust
Designed to pass, first time.
EMI/EMC & CE
EMI/EMC compliant design practices with working knowledge of EMI/EMC and CE certification requirements baked into every layout.
UL · IEC · CE Standards
International regulatory standards knowledge — UL, IEC and CE — applied from schematic review through production documentation.
Proven Track Record
Many projects delivered across global freelancing platforms — consistently high quality at nominal pricing, completed within time.
Client Reviews
What clients say after delivery.
Verified feedback from completed engineering engagements.
Embedded software developers, firmware developers…
"Zeeshan, Bilal and the entire CIRHEX team exceeded all of my expectations by delivering an app that flawlessly complements and enhances the functionality of our hardware. I was tho…"
Firmware Development for CoolCube
"Bilal and his team are exceptionally talented and did great work. We will be using them again."
NRF52 (BLE) & LoRa Electronic Device
"I would highly recommend Bilal as a hardware/software developer. He was always collaborative and communicative, making it easy to work with him throughout the project. His technica…"
5.0 average rating
Verified project reviews
Repeat clients
Start Your Project
Let's build your product.
We are hoping to be hired for your job — to bring your project to completion in the least time with nominal price, using our skills and experience. Given the chance, we will work our best and deliver the required output.
Direct channels
Prefer a straight line to an engineer? Reach us on any of the channels below and we'll respond with a scoped estimate.
- info@cirhex.com
- cirhex.com
- Free scoping & quotation on every brief
- NDA-friendly engagements welcome
Brief received
Thanks — a CIRHEX engineer will review your project and reply to your email with a scoped quote.