Choose modules by matching three concrete items: voltage and logic level, communication interface, and mechanical footprint. For example, an Arduino Uno shield will physically plug into an Uno header but may not suit a 3.3V board without a level shifter. For mixed-voltage projects, include a small power module (3.3V/5V) and a bidirectional level shifter in your parts list - both are available in our breakout boards, shields and modules and collections.
Raspberry Pi GPIO BME280 Module3.3V ------- VCCGND ------- GNDSDA ------- SDA (GPIO2)SCL ------- SCL (GPIO3)
I2C requires pull-ups; most HATs include them but breakout boards sometimes do not - check the product notes before wiring.
If a module won’t enumerate or communicate: verify voltage first, then check bus addresses (I2C), baud rates (UART) and SPI mode. Our branches provide hands-on assistance and parts exchanges for education orders - see About Us for branch locations and service ethos. For procurement teams, we handle quotes and VAT invoices for bulk classroom kits and departmental purchases.
Concerned about stock stability? We rotate inventory across Samrand, Pretoria CBD and Cape Town to reduce single-point shortages and offer sub-distributor access for larger runs. If a part is temporarily out of stock we list ETA info on the product page and can suggest immediate drop-in alternates with matching footprints or pin-compatible replacements.
Whether you are building a robot, enabling a lab course or sourcing prototypes for small production, choosing locally stocked breakout boards, shields and modules reduces scheduling risk and simplifies procurement. Explore product ranges by category at buy breakout boards, shields and modules, compare specs in breakout boards, shields and modules price, or request a quote for classroom kits and bulk orders.
Stock moves fast - if your project is time-sensitive, check stock in Samrand, request a quote for a batch order, or select branch pickup to secure components today.
