Why choose Communica for breakout boards, shields and modules
Find the exact development hardware you need without long import delays. Communica stocks a broad range of breakout boards, sensor modules and shields suited to hobbyists, students and engineering teams across South Africa. We prioritise immediate availability, clear specifications and practical bundles that get projects from prototype to testbench faster.
Local advantages that matter
When you shop locally you get faster lead times, VAT invoices for procurement, and branch collection options. Check real-time stock levels and collect from our Samrand head office or one of our branches - details are on our Branches & Trading Hours page. For a broad browse of categories, see our Collections.
What to look for before you buy
Prioritise interface, voltage levels, footprint and driver support. A module may be physically small but requires matching voltage rails and level shifting. Below is a quick comparison table to help make the right match at a glance.
| Type | Typical interface | Why it matters |
|---|---|---|
| Sensor breakout | I2C/SPI/Analog | Match bus type and voltage to your MCU to avoid level shifting |
| WiFi/Bluetooth module | UART/SPI | Check firmware support and antenna options for range |
| Motor driver shield | PWM/Logic inputs | Confirm current ratings and cooling requirements |
Specification callouts - practical checklist
- Operating voltage and logic level (3.3V vs 5V)
- Pinout and footprint compatibility with Arduino/RPi headers
- Maximum current, power dissipation and required heat-sinking
- Driver/software libraries and example code availability
If you prefer to compare brands, our Shop by Brand index lists supplier lines such as Adafruit and other maker-friendly options. For a full product index, use All Products to filter by interface, price or stock availability.
Quick compatibility checks (examples)
Example 1 - Connecting a 3.3V I2C sensor to an Arduino UNO (5V): you will need a bidirectional level shifter or use a 3.3V-compatible microcontroller. Example 2 - Selecting a WiFi module for remote telemetry: check UART baud, required AT commands or whether SPI is preferred for embedded stacks; confirm antenna placement to avoid attenuating range.
