Adafruit High Voltage UPDI Friend - USB Serial UPDI Programmer

Adafruit High Voltage UPDI Friend - USB Serial UPDI Programmer

Marsoni

M251S

$22.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit High Voltage UPDI Friend - USB Serial UPDI ProgrammerThe UPDI High Voltage Friend is a compact and efficient programmer designed to make programming modern ATtiny chips easier. It features a 3V or 5V power and logic select, indicator LEDs for power and transmission, and a quick cable for easy breadboard connections. This board is a High Voltage (HV) version, capable of sending a 12V pulse to the UPDI pin before programming, which is essential for chips using UPDI as a reset or GPIO. Additionally, it

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Good quality, a little thick for the front pocket but I carry in my shirt pocket and it works fine. Would have liked money clip on wire on the inside, but this works. Lots of places to put your cards, medical alerts, driver's license, etc. Good for people who like simple but straight forward organization.

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Reviewed in the United States on April 23, 2026