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Renato Toi

Husband, father, son, brother, programmer, entrepreneur, partner, investor

Campinas, Brasil
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This user joined on 07/13/2015.

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A chronometer for entrepreneurs pitching their startups in 7 minutes.
Project Owner Contributor

Pitch Chronometer

renato-toiRenato Toi

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Follow for the 'Hacklet' and latest news about hackaday.io
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Hackaday.io Project

lutetiumLutetium

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An open-source, ultra-low cost, portable screening device for retinal diseases
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Open Indirect Ophthalmoscope

ebin-philipEbin Philip

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The CAT Board is part of a Raspberry Pi-based hand-held FPGA programming system.
Project Owner Contributor

CAT Board

dave-vandenboutDave Vandenbout

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ultra thin custom display ... only 6 gpio for 30 leds
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4 digit charlieplexed segment display

bobriciusbobricius

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NP-41 is a hardware realization of the Nonpariel calculator simulator. It executes the original HP-41C / CV byte-codes.
Project Owner Contributor

NP-41 RPN Calculator

chris-chungChris Chung

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Nonpariel Physical (NP) is a standalone calculator microcode emulator. NP-25 executes microcodes for HP-21, HP-25C and HP-33C.
Project Owner Contributor

NP25 Calculator

chris-chungChris Chung

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I found the front case/keypad of an HP-21 in electronics recycling a while ago. I'm going to try to get it working again with Trinket guts.
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HP-21 calculator restoration/Arduino-fication

pointyointmentPointyOintment

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Dave Vandenbout wrote 10/18/2015 at 14:42 • point

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