Why choose Communica for breakout boards, shields and modules
Get components that let your project leave the bench and run in the real world. Communica stocks a deep range of breakout boards, Arduino shields, Raspberry Pi HATs, sensor modules, power modules and communication shields from maker-favourite brands and established component lines - all available for prompt collection from Samrand, Pretoria CBD or Cape Town. For lecturers, students and procurement teams we provide VAT invoices, account quotes and education-friendly support to help meet syllabus and project deadlines.
Practical value: speed, compatibility, and local support
Buying locally reduces lead time risk and lets you cross-check pinouts, voltage ranges and library support before you commit. If you need a matched sensor + breakout bundle, or a level-shifter for a 3.3V shield on a 5V bus, we can guide the right matches and stocking alternatives so your prototype keeps moving.
Range highlights and where to look
We carry categories from low-level logic level shifters and MOSFET driver modules to specialised modules such as GPS, LoRa, BLE and camera interfaces. Browse by category to quickly find compatible parts:
- Collections (shop by category) for grouped modules and shields
- Shop by Brand to find trusted maker labels and compatible lines
- All Products to scan stock and specs across categories
Specification callouts you should check
When comparing modules, focus on these non-negotiables: logic voltage (3.3V vs 5V), I2C addresses and pull-up requirements, SPI pin mapping, power consumption and physical header pitch. Below is a compact spec comparison to help triage choices quickly.
| Module Type | Typical Voltage | Interface | Notes |
|---|---|---|---|
| I2C Sensor Breakout | 1.8V-5V | I2C (SDA/SCL) | Check address conflicts and pull-ups |
| Wi-Fi/BLE Module | 3.3V | UART/SPI | Requires 3.3V regulator and antenna planning |
| Motor Driver Shield | 5V logic, motor V varies | GPIO/PWM | Verify continuous current rating against motor stall current |
Compatibility guidance and quick checks
Before checkout run a short checklist: ensure voltage compatibility or plan a level-shifter; confirm pin mapping for shields/HATs; read the module's datasheet for required decoupling capacitors; and identify whether the host board needs bus pull-ups. If you want us to double-check, request a quote and our technical team will review the match against your BOM.
