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Shared boards with the tag: learning

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Discrete 4-way 8-bit bus selector

Discrete 4-way 8-bit bus selector

Created by emlun on 2019-05-15 23:16:03

2 Layer Board - 15.6092 sq in (5.1079in x 3.0559in) / 10070.43 sq/mm (129.74mm x 77.62mm)
$50.89 per set of 4 ($3.26 per sq in)

4-input bus selector/multiplexer built from discrete transistors and resistors.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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Discrete 8 bit bitwise logic

Discrete 8 bit bitwise logic

Created by emlun on 2018-07-19 00:56:08

2 Layer Board - 15.8839 sq in (5.5579in x 2.8579in) / 10247.66 sq/mm (141.17mm x 72.59mm)
$51.78 per set of 4 ($3.26 per sq in)

8-bit bitwise logic unit built from discrete transistors and resistors. Supports the NOR, NAND AND and OR operations.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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Discrete 4-way 8 bit bus selector

Discrete 4-way 8 bit bus selector

Created by emlun on 2018-07-18 16:37:58

2 Layer Board - 12.7949 sq in (5.1059in x 2.5059in) / 8254.76 sq/mm (129.69mm x 63.65mm)
$43.12 per set of 4 ($3.37 per sq in)

NOT WORKING.

4-input bus selector/multiplexer built from discrete transistors and resistors.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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Discrete 8 bit adder with carry input

Discrete 8 bit adder with carry input

Created by emlun on 2018-05-06 22:57:39

2 Layer Board - 15.6266 sq in (3.8059in x 4.1059in) / 10081.66 sq/mm (96.67mm x 104.29mm)
$50.94 per set of 4 ($3.26 per sq in)

8 bit adder with carry input, built from only basic components: Transistors and resistors. Breadboard compatible I/O header layout.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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Discrete 8-bit memory register

Discrete 8-bit memory register

Created by emlun on 2018-05-01 21:47:31

2 Layer Board - 8.6153 sq in (2.4059in x 3.5809in) / 5558.25 sq/mm (61.11mm x 90.95mm)
$30.84 per set of 4 ($3.58 per sq in)

8 bit memory register, built from only basic components: N-channel transistors and resistors. Breadboard compatible I/O header layout.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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Discrete 8-bit xor

Discrete 8-bit xor

Created by emlun on 2018-04-30 01:52:54

2 Layer Board - 7.9537 sq in (3.3059in x 2.4059in) / 5131.41 sq/mm (83.97mm x 61.11mm)
$28.87 per set of 4 ($3.63 per sq in)

8 bit XOR, built from only basic components: N-channel transistors and resistors. Breadboard compatible I/O header layout.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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Discrete 8 bit adder with carry input

Discrete 8 bit adder with carry input

Created by emlun on 2017-09-17 23:33:16

2 Layer Board - 15.0961 sq in (4.3059in x 3.5059in) / 9739.4 sq/mm (109.37mm x 89.05mm)
$49.21 per set of 4 ($3.26 per sq in)

8 bit adder with carry input, built from only basic components: Transistors and resistors.

Note: Overflow detection for positive integer addition only.

License: GPLv3
Project URL: https://github.com/emlun/octobot
Tags: learning

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