close-circle
Close
Following
eye
7.6k
users
70
comment
9
skull
85
An ARM based scientific calculator
Project Owner Contributor

Scientific Calculator

Ramón Calvo

eye
2.1k
users
63
comment
3
skull
37
A pocket-sized KIM-1/Cosmac Elf replica with added '6502 programmable calculator mode'. Parts cost is about $10.
Project Owner Contributor

KIM Uno: A simple KIM-1 & Cosmac Elf replica

Oscarv

eye
5.4k
users
1.5k
comment
2
skull
36
An Enigma Machine Simulator was created with an Arduino UNO and a Touchscreen LCD. Simulates Enigma I, M3, M4, the Plugboard and Uhr Switch.
Project Owner Contributor

Arduino Enigma Machine Simulator

Arduino Enigma

eye
5k
users
27
comment
0
skull
29
A programmable RPN calculator using way too many Nixie tubes
Project Owner Contributor

RPN Nixie Calculator

robert.c.baruch

eye
4.1k
users
137
comment
10
skull
25
Control DMX equipment, such as lights, from a TI-84
Project Owner Contributor

DMX-84: Calculator-Controlled Lights

Alex Cordonnier

eye
1.7k
users
22
comment
0
skull
21
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 Chung

eye
4.1k
users
37
comment
2
skull
19
Finally you can do math in the dark.
Project Owner Contributor

TI-84+ SE Backlight

Tyler Anderson

eye
2.2k
users
177
comment
5
skull
18
CalcHack is a project to add missing features to graphic calculators. It adds many exciting functions students wanted for a long time.
Project Owner Contributor

CalcHack

Sean Dylan Goff

eye
1k
users
15
comment
2
skull
17
Handmade retro taking calculator with QDSP6064 bubble display
Project Owner Contributor

Retro taking calculator with Bubble display

bobricius

eye
1.8k
users
10
comment
0
skull
12
An RPN based scientific calculator with four line display based on the MSP430 microcontroller.
Project Owner Contributor

RPN Scientific Calculator

Joey Shepard

eye
658
users
18
comment
0
skull
11
A graphing calculator based on a modern 65C02 microprocessor.
Project Owner Contributor

6502 Graphing Calculator

Joey Shepard

eye
1.1k
users
15
comment
0
skull
10
TI-86 calculator replica based on STM32F407
Project Owner Contributor

TI-86 replica

hynek

eye
927
users
13
comment
4
skull
9
Homebrew scientific/graphing calculator
Project Owner Contributor

ArithMax

Wenting Z.

eye
380
users
7
comment
2
skull
8
The AriCalculator is a DIY calculator or a general purpose handheld device.
Project Owner Contributor

AriCalculator - A homemade handheld calculator

373876178

eye
468
users
5
comment
4
skull
6
Stretching the limits of Arduino with an Arduino Duemilanove Graphing Calculator.
Project Owner Contributor

BluCalc

Blue Okiris

eye
473
users
114
comment
4
skull
5
49-key mini keypad
Project Owner Contributor

Keypad

alan_r_cam

eye
399
users
7
comment
0
skull
5
An RPN scientific calculator with keystroke programming based on the LPC1114 microcontroller.
Project Owner Contributor

Programmable RPN Calculator

Joey Shepard

eye
845
users
23
comment
4
skull
3
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.
Project Owner Contributor

HP-21 calculator restoration/Arduino-fication

PointyOintment

close

Yes, delete it Cancel