Every figure above comes from prices we observed ourselves on retailers’ public product data. A “real drop” means today’s best verified price is below the median we recorded for that product over the last 90 days — not that a store put a sale badge on it.

0 of the 264 products here currently meet our quality bar for search indexing. The rest stay visible to you but are excluded from search engines until they have enough verified offers and history to be genuinely useful.

How we calculate this

Where prices come from. We read the product data each retailer publishes on its own site, unhurriedly and within the rules that retailer sets. We never work around an access control and we never buy collected data of uncertain provenance.

What “verified” means. An offer can win best price only if it is inside our freshness window, matched to the exact variant, in stock, and free of an unresolved price anomaly. “Best verified price” means lowest among the fresh offers we track — not the lowest price on the internet.

How history works. Every price we observe is stored with its source and timestamp. Daily market low, median and high come from those observations, so the price history on this page is ours, not a retailer’s claim.

What we exclude. Stale offers, mismatched variants, bundles compared against single items, and prices that move implausibly without corroboration from another store.

Images. Product photographs come from the retailer they sit beside, loaded from their own image host. We do not re-host them and claim no rights in them.

Read the full methodology →

Prototyping prices and deals

Adafruit Feather Stacking Headers &#8211; 12-pin and 16-pin female headers

Protoboards ProtoZero

Sparkfun Drehknopf (Plastik / klar)

Adafruit AVR ATmegaXX8 Pinout Sticker - 10 pcs

SparkFun Rotary Encoder Breakout &#8211; Illuminated (RG/RGB)

Pololu Universal Alu Befestigungsnabe für 5mm Shaft, #M3 Holes (2-Pack)

Generic Tactile On/Off Switch with Leads

Adafruit Prototyping Pi Plate Kit for Raspberry Pi Adafruit Pi Plate

Adafruit SMT breakout PCB for SOIC or TSSOP - various sizes 14 pin - pack of six

Adafruit SMT breakout PCB for SOIC or TSSOP - various sizes 16 pin - pack of three

Adafruit SMT breakout PCB for SOIC or TSSOP - various sizes 28 pin - pack of three

Pimoroni Mini Black HAT Hack3r PCB only

Pololu Premium Jumper Wire 10-Pack F-F 6" Black

Sparkfun Tactile Button &#8211; SMD (6mm)

Adafruit Universal Proto-Board PCBs - 3 pack 2cm x 8cm

Adafruit Universal Proto-Board PCBs - 3 pack 3cm x 7cm

Adafruit Universal Proto-Board PCBs - 3 pack 4cm x 6cm

Adafruit Universal Proto-Board PCBs - 3 pack 5cm x 7cm

Sparkfun Arduino and Breadboard Holder

SparkFun SSOP to DIP Adapter &#8211; 16-Pin

Pimoroni What The Flex

Pimoroni Maker Essentials - Mixed 0.1"/2.54mm Headers (50pcs!)

Pimoroni pHAT Stack Solder Yourself Kit

Adafruit Colorful Round Tactile Button Switch Assortment &#8211; 15 pack

How we read this category

Adafruit Feather Stacking Headers – 12-pin and 16-pin female headers

SparkFun Rotary Encoder Breakout – Illuminated (RG/RGB)

Sparkfun Tactile Button – SMD (6mm)

SparkFun SSOP to DIP Adapter – 16-Pin

Adafruit Colorful Round Tactile Button Switch Assortment – 15 pack