
Prototyping prices and deals
UponSale tracks 215 products in this category across 141 offers from 5 stores.


Adafruit Condensatori Eletrolitici in Alluminio 220µF, 25V, ± 20%. Pacco da 5.

Adafruit LED Illuminated Pushbutton – 30mm Round

Sparkfun Big Dome Pushbutton – Yellow

Seeed Studio 18650 Battery Holder Case - 2 Slot with Switch

Seeed Studio 18650 Battery Holder Case - 4 Slot

Seeed Studio Aluminum Alloy CNC Passive Cooling Cover Case for Raspberry Pi CM4 with Dual Gigabit Ethernet Carrier Board

Adafruit DragonTail for micro:bit - Fully Assembled

SparkFun Rotary Encoder Breakout – Illuminated (RG/RGB)

Adafruit AVR ATmegaXX8 Pinout Sticker - 10 pcs

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

Sparkfun Tactile Button – SMD (6mm)

Adafruit Hydro Dipping Sheets – 10 Pack of A4 Size Sheets

Adafruit Rugged Metal Pushbutton – 16mm 6V RGB Momentary

Adafruit Condensatori Eletrolitici in Alluminio 47µF, 35V, ± 20%. Pacco da 5.

Adafruit Potentiometer Knob – Soft Touch T18 – White

Sparkfun LED Tactile Button – Orange

Adafruit Panel Mount 2.1mm DC barrel jack

Adafruit SMT Breakout PCB for 32-QFN or 32-TQFP - 3 Pack!

Adafruit BNC Male Plug Terminal Block

Adafruit Mini Illuminated Momentary Pushbutton – Red Power Symbol

Adafruit 2×40 Right Angle Edge Connector for micro:bit

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

Adafruit Colorful Round Tactile Button Switch Assortment – 15 pack
How we read this category
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 215 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.